I drive an 89 Cavalier with 2.0L OHV TBI, and I was wondering what if anything can be done to improve the engines performance? It seems like its burried back into the depths of ultimate obscurity.
I've read about the possibility of MPFI conversion but what else can be done for it?
head swap to a 2.2L (idk if its possible). the 2.2L tbi is bigger, so you can swap your t/b/i.
intake is always good for some mid range
port polish, shave the head, valves/springs/retainers/ect.
full 2 1/4 exhuast.
just depends on how much your wanting to spend.
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Oh I was also wondering about the compatibility for rods/crank from a 2.4 dohc with my engine... cause that'd make for a nice torquey 2.3L stroker
The head off a 2.2L since the 2.2L has 9:1 compression as opposed to my 8.5 alone would that cause me to have 9:1 compression or would it have different pistons that would play a role in that?
The compression ratio will increase with larger stroke and/ or larger bore.
2.3/ 2.4 is a different engine. Not compatible.
2.2L engines are everywhere, for cheap. I think a 94-97 roller cam engine is kewl.
Look through the performance forum. Search for a thread titled "ls1 rockers" or something like that. There's a link to 2.0L buildup information from GM, published in 1987.
-->Slow
You could swap out intake manifolds as well as throttle bodies from a 90 or 91 2.2L Cav. They had a model 700 Rochester TBI unit vs. the smaller Rochester 500 TBI unit on the 2.0L OHV motors.
The heads on all of the 2.0L and 2.2L TBI motors are the same. If you were to do an MPFI swap then you'd have to swap the head for a 2.2L MPFI head since it has bosses in it for the injectors.
I am the first person who did the TBI to MPFI swap. It REALLY opened up my Cavalier! I spent a total of $450 on the swap(including $300 worth of head work) and it ended up giving the car 20 whp(along with a few other small mods)!!!
As far as exhaust goes, the factory exhaust is best for torque and 2 1/4" is best for horsepower. If you go any bigger than 2 1/4" then you're going to loose to much low end and not gain hardly any on the top end vs. the smaller 2 1/4" exhaust. These motors LOVE a Dynomax Super Turbo muffler. My car gained more power with the Dynomax Super Turbo than what it did with a Flowmaster muffler, AND it was more quiet!!
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91 Cav "GT"<-- R.I.P.
91 Cavalier Wagonstein - Turbocharged wagon goodness
You can take my rifle when you pry it from my cold dead hands.
you guys are very helpful
thank you I'll look up that forum thread asap
sorry to thread jack but if im reading this corectly i can also swap a 2.0 head on to a 2.2 is this corect
also i thought that all 2.0 were ohc not ohv
and if i did the head swap from a 2.2 head and block to a 2.2 block adn 2.0 head
this should rase my comp right and with the 2.0 head i should b able to turbo it easer later on (aside from the higher comp)
am i geting this corectly or am i misunderstood
What msn autos tells me my bore and stroke is is different than what the GM buildup mfg specs say... which one should I trust?
Would They have changed the bore and stroke so soon? or is msn autos wrong?
this is why i recomended 2 1/4 exhuast... or at least a cat back
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You can also keep it clean lol
This is always gonna catch someone.
There's a 1.8L OHV engine.
There's a 1.8L OHC engine
There's a 2.0L OHV engine with iron head.
There's a 2.0L OHV engine with aluminum head.
There's a 2.0L OHC engine.
There's a 2.2L OHV TBI engine
There's a 2.2L OHV MPFI engine.
You need to know what engine you have and what specs you're looking at.
-->Slow
