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off-road
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Location:
Alice Springs
Registered:
February 2004

Re: Is 5 valve better than 4 valve?

Sun, 05 June 2005 09:14

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*rivmasta* wrote on Wed, 01 June 2005 10:38

We're in the process of designing the new engine for the racecar, limited to 1650cc N/A.

We're going with the 16v as it seems that in stock form the 20v is superior (though Im not sure how much that has to do with the better intake/exhaust/cams/vvt as opposed to number of valves) but in a mild to serious build it appears that the 16v develops better power...

Mind you, this is based on talking to heaps of guys who have raced with both the 16v and 20v's, not on dyno numbers. You might say its 'seat of your pants' experience... but when you look at thier trophy cabinets most trophies are won with the 16v.

Real world experience from these guys say the 16v is better if youve got the money to turn it into a decent race motor, 20v if you dont.

We're going 16v... hi comp, 20v throttles, port etc, ze injectors (probably) 300deg (or a little smaller) cams. We'll be keeping a complete almost stock 20v as a spare ready to bolt in (just change the EMS ECU to the second set of maps)

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Subject Poster Date

Read Message Is 5 valve better than 4 valve? 170bhp Fri, 27 May 2005 12:54
Re: Is 5 valve better than 4 valve? Big T Fri, 27 May 2005 13:39
Re: Is 5 valve better than 4 valve? oldcorollas Fri, 27 May 2005 14:49
Re: Is 5 valve better than 4 valve? takai Fri, 27 May 2005 15:09
Read Message Re: Is 5 valve better than 4 valve? Jonny2TG Fri, 27 May 2005 15:34
Re: Is 5 valve better than 4 valve? takai Sat, 28 May 2005 00:26
Re: Is 5 valve better than 4 valve? CLG Sat, 28 May 2005 01:12
Re: Is 5 valve better than 4 valve? Jonny2TG Sat, 28 May 2005 01:42
Read Message Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 05:16
Re: Is 5 valve better than 4 valve? floody Tue, 31 May 2005 13:06
Re: Is 5 valve better than 4 valve? Bill Sherwood Sat, 28 May 2005 05:33
Re: Is 5 valve better than 4 valve? Henn Sat, 28 May 2005 05:41
Read Message Re: Is 5 valve better than 4 valve? Bill Sherwood Sat, 28 May 2005 05:48
Re: Is 5 valve better than 4 valve? Bill Sherwood Sat, 28 May 2005 05:46
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 06:05
Re: Is 5 valve better than 4 valve? Bill Sherwood Sat, 28 May 2005 06:07
Read Message Re: Is 5 valve better than 4 valve? Acoustic Tue, 31 May 2005 16:03
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 06:10
Re: Is 5 valve better than 4 valve? Bill Sherwood Sat, 28 May 2005 06:15
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 06:14
Read Message Re: Is 5 valve better than 4 valve? Bill Sherwood Sat, 28 May 2005 06:17
Re: Is 5 valve better than 4 valve? shinybluesteel Sat, 28 May 2005 06:40
Re: Is 5 valve better than 4 valve? JFAllen Sat, 28 May 2005 07:28
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 06:39
Read Message Re: Is 5 valve better than 4 valve? Bill Sherwood Sat, 28 May 2005 06:43
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 06:43
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 06:45
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 06:48
Read Message Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 06:58
Re: Is 5 valve better than 4 valve? Jonny2TG Sat, 28 May 2005 07:52
Re: Is 5 valve better than 4 valve? takai Sat, 28 May 2005 08:24
Re: Is 5 valve better than 4 valve? bored Sat, 28 May 2005 10:45
Read Message Re: Is 5 valve better than 4 valve? Bill Sherwood Sat, 28 May 2005 10:08
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 11:12
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 11:14
Re: Is 5 valve better than 4 valve? Bill Sherwood Sat, 28 May 2005 11:24
Read Message Re: Is 5 valve better than 4 valve? takai Sat, 28 May 2005 11:19
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 11:32
Re: Is 5 valve better than 4 valve? bored Sat, 28 May 2005 11:40
Re: Is 5 valve better than 4 valve? takai Sat, 28 May 2005 11:43
Read Message Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 11:48
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 11:49
Re: Is 5 valve better than 4 valve? takai Sat, 28 May 2005 11:53
Re: Is 5 valve better than 4 valve? IRA11Y Mon, 06 June 2005 07:26
Read Message Re: Is 5 valve better than 4 valve? ke382TG Sat, 28 May 2005 11:50
Re: Is 5 valve better than 4 valve? 170bhp Sat, 28 May 2005 11:59
Re: Is 5 valve better than 4 valve? ke382TG Sat, 28 May 2005 12:37
Re: Is 5 valve better than 4 valve? Bill Sherwood Sat, 28 May 2005 13:58
Read Message Re: Is 5 valve better than 4 valve? boudan Sat, 28 May 2005 15:22
Re: Is 5 valve better than 4 valve? Acoustic Tue, 31 May 2005 16:16
Re: Is 5 valve better than 4 valve? *rivmasta* Wed, 01 June 2005 00:38
Re: Is 5 valve better than 4 valve? off-road Sun, 05 June 2005 09:14
Read Message Re: Is 5 valve better than 4 valve? off-road Sun, 05 June 2005 09:31
Re: Is 5 valve better than 4 valve? Bill Sherwood Sun, 29 May 2005 01:29
Re: Is 5 valve better than 4 valve? Ben Wilson Tue, 31 May 2005 00:03
Re: Is 5 valve better than 4 valve? Joshstix Sun, 29 May 2005 02:26
Read Message Re: Is 5 valve better than 4 valve? Bill Sherwood Sun, 29 May 2005 08:14
Re: Is 5 valve better than 4 valve? SEXY 16 Sun, 29 May 2005 09:41
Re: Is 5 valve better than 4 valve? river Sun, 29 May 2005 11:53
Re: Is 5 valve better than 4 valve? 170bhp Sun, 29 May 2005 12:00
Read Message Re: Is 5 valve better than 4 valve? Bill Sherwood Sun, 29 May 2005 12:08
Re: Is 5 valve better than 4 valve? 170bhp Sun, 29 May 2005 12:11
Re: Is 5 valve better than 4 valve? Mr Revhead Sun, 29 May 2005 12:34
Re: Is 5 valve better than 4 valve? oldcorollas Sun, 29 May 2005 13:35
Read Message Re: Is 5 valve better than 4 valve? ROLLA GTi Sun, 29 May 2005 13:45
Re: Is 5 valve better than 4 valve? Jonny2TG Sun, 29 May 2005 14:15
Re: Is 5 valve better than 4 valve? Bill Sherwood Sun, 29 May 2005 14:58
Re: Is 5 valve better than 4 valve? THE WITZL Mon, 30 May 2005 02:34
Read Message Re: Is 5 valve better than 4 valve? funkdoc Mon, 30 May 2005 11:02
Re: Is 5 valve better than 4 valve? 4agte Mon, 06 June 2005 08:18
Re: Is 5 valve better than 4 valve? floody Mon, 06 June 2005 09:57
Re: Is 5 valve better than 4 valve? 4agte Mon, 06 June 2005 10:10
Read Message Re: Is 5 valve better than 4 valve? floody Tue, 07 June 2005 04:13
Re: Is 5 valve better than 4 valve? 170bhp Mon, 30 May 2005 09:14
Re: Is 5 valve better than 4 valve? 170bhp Mon, 30 May 2005 09:18
Re: Is 5 valve better than 4 valve? Bill Sherwood Tue, 31 May 2005 10:36
Read Message Re: Is 5 valve better than 4 valve? Jonny2TG Mon, 30 May 2005 15:37
Re: Is 5 valve better than 4 valve? Johnny Mon, 30 May 2005 15:55
Re: Is 5 valve better than 4 valve? justcallmefrank Tue, 31 May 2005 02:07
Re: Is 5 valve better than 4 valve? takai Tue, 31 May 2005 00:26
Read Message Re: Is 5 valve better than 4 valve? Ben Wilson Tue, 31 May 2005 01:02
Re: Is 5 valve better than 4 valve? takai Tue, 31 May 2005 01:04
Re: Is 5 valve better than 4 valve? THE WITZL Tue, 31 May 2005 07:41
Re: Is 5 valve better than 4 valve? Jonny2TG Tue, 31 May 2005 08:23
Read Message Re: Is 5 valve better than 4 valve? 170bhp Tue, 31 May 2005 11:40
Re: Is 5 valve better than 4 valve? Bill Sherwood Tue, 31 May 2005 11:56
Re: Is 5 valve better than 4 valve? Merudo Tue, 31 May 2005 11:57
Re: Is 5 valve better than 4 valve? xolent Tue, 31 May 2005 12:17
Read Message Re: Is 5 valve better than 4 valve? 170bhp Tue, 31 May 2005 12:25
Re: Is 5 valve better than 4 valve? Bill Sherwood Tue, 31 May 2005 12:43
Re: Is 5 valve better than 4 valve? 170bhp Tue, 31 May 2005 12:34
Re: Is 5 valve better than 4 valve? Bill Sherwood Tue, 31 May 2005 12:57
Read Message Re: Is 5 valve better than 4 valve? takai Tue, 31 May 2005 13:13
Re: Is 5 valve better than 4 valve? funkdoc Wed, 01 June 2005 12:41
Re: Is 5 valve better than 4 valve? Bill Sherwood Wed, 01 June 2005 14:04
Re: Is 5 valve better than 4 valve? emmac Wed, 01 June 2005 14:45
Read Message Re: Is 5 valve better than 4 valve? rx-3 ip Sat, 04 June 2005 06:26
Re: Is 5 valve better than 4 valve? 170bhp Sun, 05 June 2005 13:15
Re: Is 5 valve better than 4 valve? Bill Sherwood Sun, 05 June 2005 13:47
Re: Is 5 valve better than 4 valve? Kr0n1k Sun, 05 June 2005 17:34
Read Message Re: Is 5 valve better than 4 valve? 170bhp Sun, 05 June 2005 22:28
Re: Is 5 valve better than 4 valve? EMP-2TG Sun, 05 June 2005 23:50
Re: Is 5 valve better than 4 valve? off-road Sun, 05 June 2005 23:34
Re: Is 5 valve better than 4 valve? Bill Sherwood Sun, 05 June 2005 23:40
Read Message Re: Is 5 valve better than 4 valve? jkvsnn Tue, 07 June 2005 03:19
Re: Is 5 valve better than 4 valve? Bill Sherwood Tue, 07 June 2005 03:34
Re: Is 5 valve better than 4 valve? Bill Sherwood Sun, 05 June 2005 23:44
Re: Is 5 valve better than 4 valve? SEXY 16 Mon, 06 June 2005 01:00
Read Message Re: Is 5 valve better than 4 valve? oldcorollas Mon, 06 June 2005 02:01
Re: Is 5 valve better than 4 valve? off-road Mon, 06 June 2005 02:40
Re: Is 5 valve better than 4 valve? Bill Sherwood Mon, 06 June 2005 04:02
Re: Is 5 valve better than 4 valve? oldcorollas Mon, 06 June 2005 07:04
Read Message Re: Is 5 valve better than 4 valve? *rivmasta* Mon, 06 June 2005 07:29
Re: Is 5 valve better than 4 valve? *rivmasta* Mon, 06 June 2005 07:32
Re: Is 5 valve better than 4 valve? Bill Sherwood Mon, 06 June 2005 08:14
Re: Is 5 valve better than 4 valve? takai Mon, 06 June 2005 09:06
Read Message Re: Is 5 valve better than 4 valve? 4agte Mon, 06 June 2005 09:11
Re: Is 5 valve better than 4 valve? takai Mon, 06 June 2005 11:38
Re: Is 5 valve better than 4 valve? Bobski Mon, 06 June 2005 16:41
Re: Is 5 valve better than 4 valve? Blown86 Mon, 06 June 2005 23:30
Read Message Re: Is 5 valve better than 4 valve? Corona RT142 Mon, 06 June 2005 23:31
Re: Is 5 valve better than 4 valve? adamaw11 Tue, 07 June 2005 01:26
Re: Is 5 valve better than 4 valve? Bill Sherwood Tue, 07 June 2005 02:54
Re: Is 5 valve better than 4 valve? shinybluesteel Tue, 07 June 2005 03:03
Read Message Re: Is 5 valve better than 4 valve? lumpy Tue, 07 June 2005 05:52
Re: Is 5 valve better than 4 valve? oldcorollas Fri, 10 June 2005 01:50
Re: Is 5 valve better than 4 valve? TheStitt Wed, 08 June 2005 06:24
Re: Is 5 valve better than 4 valve? 510rob Thu, 09 June 2005 19:48
Read Message Re: Is 5 valve better than 4 valve? takai Fri, 10 June 2005 04:23
Re: Is 5 valve better than 4 valve? oldcorollas Fri, 10 June 2005 04:57
Re: Is 5 valve better than 4 valve? Mr Revhead Fri, 10 June 2005 05:49
Re: Is 5 valve better than 4 valve? oldcorollas Fri, 10 June 2005 06:21
Read Message Re: Is 5 valve better than 4 valve? Mr Revhead Fri, 10 June 2005 07:02
Re: Is 5 valve better than 4 valve? oldcorollas Fri, 10 June 2005 07:24

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