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Toymods Social Secretary
Location: Sydney
Registered: July 2002
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Re: Is 5 valve better than 4 valve?
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Mon, 30 May 2005 02:34
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I'm with river on this one 
Give me 8 valves, 45degree *wide* valve angles, massive dome combustion chambers and Hugh Jass valve sizes 
Damn cheap to service, being that there is only half the number of valves to play with 
Bill,
I very much like the fact that you have made mention to the 2zz-ge. I find it funny that people forget this motor exists. 4 valves, 1800cc, 8200rpm and 140kW straight from the factory with 21st century emission and noise level compliance. If i had money i would sooooo play with a few.
In all truth, i haven't a lot to add to this discussion as i am not that well experienced with the full variety of 4A engines, nor do i claim to posses a full knowledge of flow technonics and head/engine design principles and experience.
I will say that in my experience of the two engines (smallport 16V 4age vs silvertop 20V) in STOCK form, side by side in the SAME car (AE92)..... i thought the 20V's performance was rather lacklustre. Yes it revved higher, and was a little smoother, but one would have expected more from so many "improvements" in the WHOLE engine package beyond the addition of the extra valve.
I would go so far as to ask someome with the ability to take a stock 20V and a stock smallport 16V and do some engine dyno testing...
# in stock forms (i mean complete stock, down to exhausts and intakes)
# after addition of quad TBs to the 16V (on par with 20V)
# after addition of VVT on par with 20V
I would be VERY interested to see the results.
Me, i love the smallport 16V. Simply because i picked one out of a scrap metal bin for $100, chucked it in my AE71 and thrashed the crap out of it for a year including a 15.8 sec pass and 69rwKW, then added 11psi and some less-than-ideal tuning for a quiet 14.1 pass and 116rwkW.
To this day it still gets thrashed and STILL hasnt missed a beat - and i havent even cracked open more than the sump and manifolds....
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Is 5 valve better than 4 valve?
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170bhp | Fri, 27 May 2005 12:54 |
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Re: Is 5 valve better than 4 valve?
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Big T | Fri, 27 May 2005 13:39 |
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Re: Is 5 valve better than 4 valve?
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oldcorollas | Fri, 27 May 2005 14:49 |
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Re: Is 5 valve better than 4 valve?
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takai | Fri, 27 May 2005 15:09 |
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Re: Is 5 valve better than 4 valve?
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Jonny2TG | Fri, 27 May 2005 15:34 |
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Re: Is 5 valve better than 4 valve?
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takai | Sat, 28 May 2005 00:26 |
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Re: Is 5 valve better than 4 valve?
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CLG | Sat, 28 May 2005 01:12 |
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Re: Is 5 valve better than 4 valve?
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Jonny2TG | Sat, 28 May 2005 01:42 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 05:16 |
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Re: Is 5 valve better than 4 valve?
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floody | Tue, 31 May 2005 13:06 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sat, 28 May 2005 05:33 |
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Re: Is 5 valve better than 4 valve?
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Henn | Sat, 28 May 2005 05:41 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sat, 28 May 2005 05:48 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sat, 28 May 2005 05:46 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 06:05 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sat, 28 May 2005 06:07 |
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Re: Is 5 valve better than 4 valve?
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Acoustic | Tue, 31 May 2005 16:03 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 06:10 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sat, 28 May 2005 06:15 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 06:14 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sat, 28 May 2005 06:17 |
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Re: Is 5 valve better than 4 valve?
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shinybluesteel | Sat, 28 May 2005 06:40 |
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Re: Is 5 valve better than 4 valve?
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JFAllen | Sat, 28 May 2005 07:28 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 06:39 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sat, 28 May 2005 06:43 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 06:43 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 06:45 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 06:48 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 06:58 |
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Re: Is 5 valve better than 4 valve?
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Jonny2TG | Sat, 28 May 2005 07:52 |
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Re: Is 5 valve better than 4 valve?
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takai | Sat, 28 May 2005 08:24 |
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Re: Is 5 valve better than 4 valve?
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bored | Sat, 28 May 2005 10:45 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sat, 28 May 2005 10:08 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 11:12 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 11:14 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sat, 28 May 2005 11:24 |
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Re: Is 5 valve better than 4 valve?
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takai | Sat, 28 May 2005 11:19 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 11:32 |
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Re: Is 5 valve better than 4 valve?
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bored | Sat, 28 May 2005 11:40 |
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Re: Is 5 valve better than 4 valve?
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takai | Sat, 28 May 2005 11:43 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 11:48 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 11:49 |
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Re: Is 5 valve better than 4 valve?
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takai | Sat, 28 May 2005 11:53 |
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Re: Is 5 valve better than 4 valve?
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IRA11Y | Mon, 06 June 2005 07:26 |
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Re: Is 5 valve better than 4 valve?
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ke382TG | Sat, 28 May 2005 11:50 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sat, 28 May 2005 11:59 |
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Re: Is 5 valve better than 4 valve?
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ke382TG | Sat, 28 May 2005 12:37 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sat, 28 May 2005 13:58 |
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Re: Is 5 valve better than 4 valve?
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boudan | Sat, 28 May 2005 15:22 |
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Re: Is 5 valve better than 4 valve?
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Acoustic | Tue, 31 May 2005 16:16 |
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Re: Is 5 valve better than 4 valve?
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*rivmasta* | Wed, 01 June 2005 00:38 |
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Re: Is 5 valve better than 4 valve?
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off-road | Sun, 05 June 2005 09:14 |
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Re: Is 5 valve better than 4 valve?
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off-road | Sun, 05 June 2005 09:31 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sun, 29 May 2005 01:29 |
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Re: Is 5 valve better than 4 valve?
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Ben Wilson | Tue, 31 May 2005 00:03 |
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Re: Is 5 valve better than 4 valve?
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Joshstix | Sun, 29 May 2005 02:26 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sun, 29 May 2005 08:14 |
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Re: Is 5 valve better than 4 valve?
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SEXY 16 | Sun, 29 May 2005 09:41 |
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Re: Is 5 valve better than 4 valve?
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river | Sun, 29 May 2005 11:53 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sun, 29 May 2005 12:00 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sun, 29 May 2005 12:08 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sun, 29 May 2005 12:11 |
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Re: Is 5 valve better than 4 valve?
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Mr Revhead | Sun, 29 May 2005 12:34 |
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Re: Is 5 valve better than 4 valve?
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oldcorollas | Sun, 29 May 2005 13:35 |
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Re: Is 5 valve better than 4 valve?
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ROLLA GTi | Sun, 29 May 2005 13:45 |
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Re: Is 5 valve better than 4 valve?
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Jonny2TG | Sun, 29 May 2005 14:15 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sun, 29 May 2005 14:58 |
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Re: Is 5 valve better than 4 valve?
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THE WITZL | Mon, 30 May 2005 02:34 |
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Re: Is 5 valve better than 4 valve?
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funkdoc | Mon, 30 May 2005 11:02 |
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Re: Is 5 valve better than 4 valve?
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4agte | Mon, 06 June 2005 08:18 |
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Re: Is 5 valve better than 4 valve?
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floody | Mon, 06 June 2005 09:57 |
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Re: Is 5 valve better than 4 valve?
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4agte | Mon, 06 June 2005 10:10 |
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Re: Is 5 valve better than 4 valve?
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floody | Tue, 07 June 2005 04:13 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Mon, 30 May 2005 09:14 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Mon, 30 May 2005 09:18 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Tue, 31 May 2005 10:36 |
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Re: Is 5 valve better than 4 valve?
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Jonny2TG | Mon, 30 May 2005 15:37 |
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Re: Is 5 valve better than 4 valve?
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Johnny | Mon, 30 May 2005 15:55 |
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Re: Is 5 valve better than 4 valve?
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justcallmefrank | Tue, 31 May 2005 02:07 |
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Re: Is 5 valve better than 4 valve?
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takai | Tue, 31 May 2005 00:26 |
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Re: Is 5 valve better than 4 valve?
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Ben Wilson | Tue, 31 May 2005 01:02 |
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Re: Is 5 valve better than 4 valve?
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takai | Tue, 31 May 2005 01:04 |
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Re: Is 5 valve better than 4 valve?
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THE WITZL | Tue, 31 May 2005 07:41 |
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Re: Is 5 valve better than 4 valve?
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Jonny2TG | Tue, 31 May 2005 08:23 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Tue, 31 May 2005 11:40 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Tue, 31 May 2005 11:56 |
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Re: Is 5 valve better than 4 valve?
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Merudo | Tue, 31 May 2005 11:57 |
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Re: Is 5 valve better than 4 valve?
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xolent | Tue, 31 May 2005 12:17 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Tue, 31 May 2005 12:25 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Tue, 31 May 2005 12:43 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Tue, 31 May 2005 12:34 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Tue, 31 May 2005 12:57 |
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Re: Is 5 valve better than 4 valve?
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takai | Tue, 31 May 2005 13:13 |
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Re: Is 5 valve better than 4 valve?
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funkdoc | Wed, 01 June 2005 12:41 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Wed, 01 June 2005 14:04 |
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Re: Is 5 valve better than 4 valve?
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emmac | Wed, 01 June 2005 14:45 |
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Re: Is 5 valve better than 4 valve?
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rx-3 ip | Sat, 04 June 2005 06:26 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sun, 05 June 2005 13:15 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sun, 05 June 2005 13:47 |
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Re: Is 5 valve better than 4 valve?
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Kr0n1k | Sun, 05 June 2005 17:34 |
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Re: Is 5 valve better than 4 valve?
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170bhp | Sun, 05 June 2005 22:28 |
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Re: Is 5 valve better than 4 valve?
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EMP-2TG | Sun, 05 June 2005 23:50 |
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Re: Is 5 valve better than 4 valve?
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off-road | Sun, 05 June 2005 23:34 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sun, 05 June 2005 23:40 |
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Re: Is 5 valve better than 4 valve?
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jkvsnn | Tue, 07 June 2005 03:19 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Tue, 07 June 2005 03:34 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Sun, 05 June 2005 23:44 |
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Re: Is 5 valve better than 4 valve?
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SEXY 16 | Mon, 06 June 2005 01:00 |
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Re: Is 5 valve better than 4 valve?
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oldcorollas | Mon, 06 June 2005 02:01 |
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Re: Is 5 valve better than 4 valve?
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off-road | Mon, 06 June 2005 02:40 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Mon, 06 June 2005 04:02 |
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Re: Is 5 valve better than 4 valve?
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oldcorollas | Mon, 06 June 2005 07:04 |
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Re: Is 5 valve better than 4 valve?
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*rivmasta* | Mon, 06 June 2005 07:29 |
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Re: Is 5 valve better than 4 valve?
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*rivmasta* | Mon, 06 June 2005 07:32 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Mon, 06 June 2005 08:14 |
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Re: Is 5 valve better than 4 valve?
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takai | Mon, 06 June 2005 09:06 |
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Re: Is 5 valve better than 4 valve?
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4agte | Mon, 06 June 2005 09:11 |
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Re: Is 5 valve better than 4 valve?
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takai | Mon, 06 June 2005 11:38 |
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Re: Is 5 valve better than 4 valve?
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Bobski | Mon, 06 June 2005 16:41 |
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Re: Is 5 valve better than 4 valve?
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Blown86 | Mon, 06 June 2005 23:30 |
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Re: Is 5 valve better than 4 valve?
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Corona RT142 | Mon, 06 June 2005 23:31 |
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Re: Is 5 valve better than 4 valve?
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adamaw11 | Tue, 07 June 2005 01:26 |
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Re: Is 5 valve better than 4 valve?
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Bill Sherwood | Tue, 07 June 2005 02:54 |
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Re: Is 5 valve better than 4 valve?
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shinybluesteel | Tue, 07 June 2005 03:03 |
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Re: Is 5 valve better than 4 valve?
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lumpy | Tue, 07 June 2005 05:52 |
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Re: Is 5 valve better than 4 valve?
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oldcorollas | Fri, 10 June 2005 01:50 |
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Re: Is 5 valve better than 4 valve?
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TheStitt | Wed, 08 June 2005 06:24 |
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Re: Is 5 valve better than 4 valve?
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510rob | Thu, 09 June 2005 19:48 |
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Re: Is 5 valve better than 4 valve?
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takai | Fri, 10 June 2005 04:23 |
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Re: Is 5 valve better than 4 valve?
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oldcorollas | Fri, 10 June 2005 04:57 |
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Re: Is 5 valve better than 4 valve?
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Mr Revhead | Fri, 10 June 2005 05:49 |
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Re: Is 5 valve better than 4 valve?
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oldcorollas | Fri, 10 June 2005 06:21 |
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Re: Is 5 valve better than 4 valve?
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Mr Revhead | Fri, 10 June 2005 07:02 |
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Re: Is 5 valve better than 4 valve?
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oldcorollas | Fri, 10 June 2005 07:24 |
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