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-blown20v-
Regular


Registered:
January 2003
icon5.gif  4age help Wed, 24 September 2003 10:35 Go to next message
hey guys.. well i am aquiring a shaved head for my 4age16v and am lookin at gettin stage 3 cams for it also and maybe oversized valves..
ok here are the questions...
where can i find out about cams and wat price range am i lookin at..?????
and also will the oversized valves be worth the money in performance value and also.. wat is the cost of valves..
any other tips of getttin a lil bit more power out of the 16v in n/a form wopuld be appreciated..
tanks dudes
chris
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oldcorollas
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
 
Re: 4age help Wed, 24 September 2003 10:42 Go to previous messageGo to next message
for the ultimate in NA 4AG, do a search for 'formula atlantic' mind you, they have a power band of about 6-10,000rpm

go talk to a cam shop, go talk to some engine builders, and do some internet searches. the 4AG is one engine with a huge amount of information readily available.

WAT performance are you after, how fast can you afford to go??
Cya, Stewart
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-blown20v-
Regular


Registered:
January 2003
Re: 4age help Wed, 24 September 2003 11:00 Go to previous messageGo to next message
driveable but fun performace...
wat i mean by that is my car is already a cunt to drive in the wet... just wants to wheelspin...
but yea i think the shaved head and cams and maybe a port polish would be around the right mark otherwise u come into bigger problems with driveline strength
dunno.. just curious..
oh and those formula extreme wouldn pass emissions or be good as a daily driver
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Juggalo
Regular


Location:
Sydney (Liverpool)
Registered:
March 2003
 
Re: 4age help Wed, 24 September 2003 11:10 Go to previous messageGo to next message
This is the best write up I've ever seen for modifying the 4A-GE: http://www.billzilla.org/4agmods.htm
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oldcorollas
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
 
Re: 4age help Wed, 24 September 2003 11:11 Go to previous messageGo to next message
-blown20v- wrote on Wed, 24 September 2003 21:00

driveable but fun performace...
wat i mean by that is my car is already a cunt to drive in the wet... just wants to wheelspin...
but yea i think the shaved head and cams and maybe a port polish would be around the right mark otherwise u come into bigger problems with driveline strength
dunno.. just curious..
oh and those formula extreme wouldn pass emissions or be good as a daily driver


so you want it to wheelspin more in the wet??
maybe addressing suspension and tyres will give you more performance, by virtue of actually having more traction.

will you have problems with the timing belt length, now the cam sprockets will be closer to the crank sprocket? how much is the head shaved?
afaik, the 4AG ports are already quite good... hmmmm
soudns like you need to pick an rpm range, and then build the motor for that.

driveline strength is more related to abuse than to power. a K50 can take a 4AG if it is driven nicely (and i don't mean not hard).
same with the T50, if you do burnouts and flatchanges, it's going to die..

"formula atlantic" i thought, since you are looking at changing to oversize valves, that you were aiming for something like that. if you go too big in cams, you will not pas emissions either, and same for daily driver, but it all comes down to personal preference.

pick your rpm range, pick your drivability, build the motor to that. have fun Smile easy! Very Happy

Cya, Stewart



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sideshow
Forums Junkie


Location:
sydney
Registered:
March 2003
Re: 4age help Wed, 24 September 2003 11:18 Go to previous messageGo to next message
just beware some cams will make yr car idle eratically
due to little vacuum at idle

which in turn can put yr mixtures out

i do know some people go overboard with cams

then they winge about the bad idle
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-blown20v-
Regular


Registered:
January 2003
Re: 4age help Wed, 24 September 2003 11:22 Go to previous message
no not really wheelspin in wet no...
i have already addressed that prob.. went from stock rims and suspension to 205/40 r16 tyres and lowered suspension and it didnt seem to bring about any benefit in wet road traction..
dunno bout the shaved head specs... it on a 4age atm.. im just swappin em over...
cams i likied the look of stage 3 babies...Very Happy
hmmm.. we'll see
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