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Posted: Tue May 30, 2006 11:34 pm 
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shnoza wrote:
custom rods/pistons? will get to expensive at the end i guess.
i havent be in a car with 180rwkw.
how was the car horrible to drive?


To make big power on the dyno, you have to do everything you can to increase flow at high rpm. When that engine is at low rpm (<3000) there is no velocity in the intake so the engine is very inefficient/gutless.

In other words, a 180rwkw+ engines have very lumpy idle and not much power below 3000rpm which makes driving them unpleasant.

 

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Posted: Tue May 30, 2006 11:38 pm 
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tickford_6 wrote:
stockstandard wrote:
shnoza wrote:
then how come most people cant reach past the 180rwkw? they do almost everything.


Because they are modding a long stroke 6 cyl engine that cant rev. Its hard to make big power numbers with 4.0L displacement when the engine wont go past 6000rpm.



it'll go past 6000rpm, you just need the right rods and pistons to keep it together


Getting it to hold together is the easy part (I have mine at 6400-6500 often enough). The geometry doesnt lend itself to producing power at these rpm.

 

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Posted: Tue May 30, 2006 11:41 pm 
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by modding or changing the manifold should get better results?
so basicly the i6 engines are s**t to mods? (i think that they didnt have the setup of the engine right if its lumpy and didnt have power below 3000rpm. but i dont know much).

 

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Posted: Tue May 30, 2006 11:45 pm 
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shnoza wrote:
by modding or changing the manifold should get better results?
so basicly the i6 engines are s**t to mods? (i think that they didnt have the setup of the engine right if its lumpy and didnt have power below 3000rpm. but i dont know much).


No its not s**t to mod, every engine has limits on what is practical for a street engine. If you want to go all out, look at the speedway cars that ditch EFI and pull over 200rwkw with a carby sitting on top.

 

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Posted: Tue May 30, 2006 11:48 pm 
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thanks mate for the info. gona research more about the efi and the caby. but i thought efi is better?

 

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Posted: Tue May 30, 2006 11:51 pm 
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shnoza wrote:
thanks mate for the info. gona research more about the efi and the caby. but i thought efi is better?


EFI is better, but they are not allowed to use it in the class they run.

Also look at the changes they made in the BA's. They use the same manifold and get 180rwkw.

BA heads have 4 valves as well so they can get good flow and velocity (so they can work the engine and dont have as much problems with loss of low end power).

 

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Posted: Tue May 30, 2006 11:56 pm 
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i know the el heads are not that good. they should of made them twin cam. only if the ba heads fitted on the e series.

 

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Posted: Wed May 31, 2006 12:52 am 
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shnoza wrote:
i know the el heads are not that good. they should of made them twin cam. only if the ba heads fitted on the e series.



i bet your not the first person too say that line!!!!

 

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