turboless power? - Performance Forum

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turboless power?
Thursday, March 24, 2005 4:38 PM
Goal: make 2004 Chevrolet Cavalier Coupe with 2.2L Ecotec engine produce equal to or greater power than an SRT-4 2.4L turbocharged.
Catch: no turbo or super charger(s).

Basically over time I want to better the performance and handling of my car, with the goal above in mind. How hard will it be to up the horse power and torque from 140 hp 150 ft/lbs to 230 hp 250 ft/lbs without the use of a turbo or super charger. I'm sure it can be done, but I need advice on what parts will help give more power. Also any parts that don't give much power and should be avoided would be helpful. Thanx for any and all help.





I'm making the back of my car look good first.
After all, Civics need something nice to look at...

Re: turboless power?
Thursday, March 24, 2005 4:46 PM
im no expert at performance but im gonna say impossible w/o boost of some kind, unless u add nitrous


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Re: turboless power?
Thursday, March 24, 2005 4:50 PM
start spraying alot of nitrous. a 100 shot should get you in that hp range you are seeking.


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Re: turboless power?
Thursday, March 24, 2005 5:01 PM
Like the others have said, the *only* way possible is nitrous. I'm sure (and this is totally out of my ass) that in the world of people who have nothing better to do with $10k, you might be able to match the peak hp number of a srt4 on motor, but then good luck with your powerband looking like anything other than mt. everest.

Sounds like you need to visit www.howstuffworks.com



__________________________________________
Quote:

Originally posted by MSD
I have an 03 5-speed Cavy, and when I race.. I shift at 6300-6500. That method (coupled with the fact that the guy probably couldn't drive for @!#$) allowed me to keep up with/have a slight lead on an 04 Mustang GT.

Re: turboless power?
Thursday, March 24, 2005 5:06 PM
There was a cavalier in an old magazine I have(not sure which one), it put 205hp to the ground by using higher compression ratio pistons, different cams and a full exhaust plus air intake. I think that was all the performance parts they used.
Re: turboless power?
Thursday, March 24, 2005 6:56 PM
well, how much do srt-4s put at the wheels? I'm guessing about 205hp and 220 ft-lbs? And it can be done, but it wouldnt be an easy task at all.

Since you want to go all motor you would need a new ecu, port and polish with bigger valves, custom wicked cams, very high compression, bore it out, you will need to customize the pistons, probably a new crankshaft, and all of the bolt-ons: intake, throttle body, intake manifold, pulley, header, exhaust, msd, ect. Then you need to do suspension.

This would cost a lot of money and time because you would need to do a lot of trial and error, but its possible. It would probably be easier to just buy an srt-4 or turbo your car. Plus when you're done, the car wont be street legal, and gas would be a bitch.
Re: turboless power?
Thursday, March 24, 2005 8:13 PM
ask karo what he is putting down to the wheels


srt-4s but down about 230 at the wheels



Re: turboless power?
Thursday, March 24, 2005 8:26 PM
they come 230 to the crank, not the wheels, but with an aftermarket turbo im sure they can put way more than that down.
Re: turboless power?
Thursday, March 24, 2005 8:51 PM
it will take like cams,pistons,boring the head,exhaust,headers,intake,fuel system act to acomplish this i beleive. alot of money so i say just throw on a vortech stage 2 s/c and forget about doing all the things i listed cause the cams alone are over 1,000 for them and like 200 for headers and blah blah so i think just putting a s/c or turbo would be your best bet for like 2-5 grand



Re: turboless power?
Thursday, March 24, 2005 9:16 PM
srt-4's are come with turbos
Re: turboless power?
Thursday, March 24, 2005 9:17 PM
its possilbe to get that much power without boost or n20.
higher compression pistons, P&P, cams, etc etc. do some more research into it



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Re: turboless power?
Thursday, March 24, 2005 9:36 PM
crackajax wrote:they come 230 to the crank, not the wheels, but with an aftermarket turbo im sure they can put way more than that down.


they are also highly underrated. i bet they can put 230 to the wheels also

on topic. talk to karo
he's the only one with that kind of power N/A but its not a ecotec, he can still prolly help




Re: turboless power?
Thursday, March 24, 2005 10:23 PM
crackajax wrote:well, how much do srt-4s put at the wheels? I'm guessing about 205hp and 220 ft-lbs? And it can be done, but it wouldnt be an easy task at all.

Since you want to go all motor you would need a new ecu, port and polish with bigger valves, custom wicked cams, very high compression, bore it out, you will need to customize the pistons, probably a new crankshaft, and all of the bolt-ons: intake, throttle body, intake manifold, pulley, header, exhaust, msd, ect. Then you need to do suspension.

This would cost a lot of money and time because you would need to do a lot of trial and error, but its possible. It would probably be easier to just buy an srt-4 or turbo your car. Plus when you're done, the car wont be street legal, and gas would be a bitch.




I'm sure he can use the stock crank could easily handle the power form the all motor build, as well as retain the stock ecu. and I disbeleave the fact that it wont be street legal. I'm quite sure it will still be street legal, if he were to go through with the build.

Customize the pistons?............. ei.. ' hey homer wanna add some speed holes to the flanders mobile" ......or domed pistons? >> looks across room at dremel>>>>

I would say bolt on's, cams, nitrous and that will easily get you to your goal. and for traction issues that may arise from the bottle, you could get a progressive controler. That sould help you keep what traction you have.

Also many stock srt's have dyno'd 230+ to the wheels.

sorry didnt meen to come across as an ass. but oh well. life goes on
later jeff




Re: turboless power?
Thursday, March 24, 2005 11:04 PM
pushrods wrote:
crackajax wrote:well, how much do srt-4s put at the wheels? I'm guessing about 205hp and 220 ft-lbs? And it can be done, but it wouldnt be an easy task at all.

Since you want to go all motor you would need a new ecu, port and polish with bigger valves, custom wicked cams, very high compression, bore it out, you will need to customize the pistons, probably a new crankshaft, and all of the bolt-ons: intake, throttle body, intake manifold, pulley, header, exhaust, msd, ect. Then you need to do suspension.

This would cost a lot of money and time because you would need to do a lot of trial and error, but its possible. It would probably be easier to just buy an srt-4 or turbo your car. Plus when you're done, the car wont be street legal, and gas would be a bitch.




I'm sure he can use the stock crank could easily handle the power form the all motor build, as well as retain the stock ecu. and I disbeleave the fact that it wont be street legal. I'm quite sure it will still be street legal, if he were to go through with the build.

Customize the pistons?............. ei.. ' hey homer wanna add some speed holes to the flanders mobile" ......or domed pistons? >> looks across room at dremel>>>>

I would say bolt on's, cams, nitrous and that will easily get you to your goal. and for traction issues that may arise from the bottle, you could get a progressive controler. That sould help you keep what traction you have.

Also many stock srt's have dyno'd 230+ to the wheels.

sorry didnt meen to come across as an ass. but oh well. life goes on
later jeff


If he goes all motor without nitrious, it wont be street legal. When you get some wicked cams and @!#$, the computers cant handle it on these motors as of now. He would need to do a n OBD-1 conversion like Karo, which is not street legal.

You can customize the specs on pistons and you can customize the specs on cams too you dumb@!#$. He is trying to get 230hp out of this motor, an intake and some cams isnt going to do it. Plus, i dont know if its just me, but i wouldnt run that much nitrious on a motor that is practically stock. If he wants to go all motor, he would need to customize a lot the @!#$ he puts into it because this isnt something that people do everyday.

pushrods wrote:sorry didnt meen to come across as an ass.

yeah, a dumbass @!#$
Re: turboless power?
Thursday, March 24, 2005 11:08 PM
You'd want to use nitrous if you hope to keep it daily driveable, and you wouldn't have the powerband to keep up with a stock SRT with the same hp level NA. I'd love to see someone try it though.


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Re: turboless power?
Friday, March 25, 2005 12:32 AM
eh, 11:1 butterfly cut pistons, a half inch of valve lift, and the ability to spin the crank at 12,000RPM's shoud be all you need.

or a small block.
Re: turboless power?
Friday, March 25, 2005 6:19 AM
ok, so it seems it's not practicle to reach that power without boost or nitrous oxide. i'm confident i can get it to 200hp and keep street legal, so that's what i'm gonna shoot for.

http://www.chevyhiperformance.com/featuredvehicles/47325/
there's a gm project cavalier that's got 180 hp.

here are a list of parts i was looking into getting:
ecotec engine mount
k&n intake
spark boot
( i'd like to get cams, but i'm having a hard time finding them for ecotec )
02 simulator
pulley & belt
connecting rod set
magnaflow catalytic converter
magnaflow dual cat-back exhaust
ceramic coated headers

if anyone can let me know if those parts would get me anywhere close to 200hp, i'd greatly appreciate it. i'd consider port and polishing the engine, but i will not get it bored. if there are any other boostless or nitrous free modifications or parts that would be applicable, please let me know. thanx.





I'm making the back of my car look good first.
After all, Civics need something nice to look at...
Re: turboless power?
Friday, March 25, 2005 6:55 AM
marc achenbach wrote:ok, so it seems it's not practicle to reach that power without boost or nitrous oxide. i'm confident i can get it to 200hp and keep street legal, so that's what i'm gonna shoot for.

http://www.chevyhiperformance.com/featuredvehicles/47325/
there's a gm project cavalier that's got 180 hp.

here are a list of parts i was looking into getting:
ecotec engine mount
k&n intake
spark boot
( i'd like to get cams, but i'm having a hard time finding them for ecotec )
02 simulator
pulley & belt
connecting rod set
magnaflow catalytic converter
magnaflow dual cat-back exhaust
ceramic coated headers

if anyone can let me know if those parts would get me anywhere close to 200hp, i'd greatly appreciate it. i'd consider port and polishing the engine, but i will not get it bored. if there are any other boostless or nitrous free modifications or parts that would be applicable, please let me know. thanx.


Ok my take on this is you will prob not hit 200 hp with those mods unless u use nitrous. You might wanna look into cams as you said, port and polish, new pistons, upping the compression. Doing those you shoudl hit your desired hp and still be street legal. I know darkstars is running 14.2 before his cams but he also had a 75 shot. Look him up and see his engine mods.



Disclaimer: Dey see me Trollin' Dey hatin' for trollin dey trying to catch me ridin dirty.

Re: turboless power?
Friday, March 25, 2005 8:00 AM
There is no way you can hit 200 whp with the mods listed.
Re: turboless power?
Friday, March 25, 2005 8:06 AM
swap for the 2.4 eco when it comes out and build that up for n/a racing
cams intake exhaust headwork etc etc
if they ever get the obdII programmer out they would help alot



Re: turboless power?
Friday, March 25, 2005 9:04 AM
possible with the 2.4 eco but i agree with sappy. lots of headwork........lots. id still rather go with boost or nitrous tho.....................

Re: turboless power?
Friday, March 25, 2005 10:00 AM
marc achenbach wrote:ok, so it seems it's not practicle to reach that power without boost or nitrous oxide. i'm confident i can get it to 200hp and keep street legal, so that's what i'm gonna shoot for.

http://www.chevyhiperformance.com/featuredvehicles/47325/
there's a gm project cavalier that's got 180 hp.

here are a list of parts i was looking into getting:
ecotec engine mount
k&n intake
spark boot
( i'd like to get cams, but i'm having a hard time finding them for ecotec )
02 simulator
pulley & belt
connecting rod set
magnaflow catalytic converter
magnaflow dual cat-back exhaust
ceramic coated headers

if anyone can let me know if those parts would get me anywhere close to 200hp, i'd greatly appreciate it. i'd consider port and polishing the engine, but i will not get it bored. if there are any other boostless or nitrous free modifications or parts that would be applicable, please let me know. thanx.


lol. You wouldn't even get 140whp with that. That's basically i/h/e/pulley.




__________________________________________
Quote:

Originally posted by MSD
I have an 03 5-speed Cavy, and when I race.. I shift at 6300-6500. That method (coupled with the fact that the guy probably couldn't drive for @!#$) allowed me to keep up with/have a slight lead on an 04 Mustang GT.

Re: turboless power?
Friday, March 25, 2005 9:47 PM
i would almost garauntee with cams, headwork, bigger TB, header, exhaust, intake, pulley, internals, and a reprogram (if one comes more readily available) 250whp is very possibly
thats my goal anyways

with the mods i have listed ive shaved about a second off my 1/4 time so must be some decent gains so far and headwork TB and exhaust would intensify the gains alot



04 sunfire auto, mid 15's n/a, and still going
Re: turboless power?
Friday, March 25, 2005 10:04 PM
04eco (roy) wrote:i would almost garauntee with cams, headwork, bigger TB, header, exhaust, intake, pulley, internals, and a reprogram (if one comes more readily available) 250whp is very possibly
thats my goal anyways

with the mods i have listed ive shaved about a second off my 1/4 time so must be some decent gains so far and headwork TB and exhaust would intensify the gains alot


no way, not even close, you would need to do something with pistons and @!#$, no way you would get near 250whp with what you have listed, hell, it would be a lot faster, but not 250whp fast.
Re: turboless power?
Friday, March 25, 2005 10:50 PM
You would be lucky to be putting 160 to the wheels with those mods, you aren't going to get near 200.
There are two major roadblocks, the ECU and the Ecotec cams, I haven't seen much luck with any of the current cams out. I think the most gain Ive seen on these forums from a set of hot cams was 10 hp and people are having problems getting them tuned right. The stock ECU is not currently going to be able to deal with any of the modifcations youll need to get close to your mark. You would be better off trying to build a LD9, there are better cam sets out for it and you are starting out with a higher stock HP.



Quote:


here are a list of parts i was looking into getting:
ecotec engine mount
k&n intake
spark boot
( i'd like to get cams, but i'm having a hard time finding them for ecotec )
02 simulator
pulley & belt
connecting rod set
magnaflow catalytic converter
magnaflow dual cat-back exhaust
ceramic coated headers


Quote:





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