How much hp can the 3.1 v6 get with cast iron heads with
-Stainless Steel Valve Set
-Performance Valve Spring Set
-Performance Alloy Retainer Set
-Performance Valve Keeper Set
Also, they would be port and polished.
The camshaft and lifters would be a 260H Comp Cam with an RPM range at 1000 to 5000 with intake and exhaust valve lift of .44 and intake and exhaust valve lift of 0.293. Also, a cold air intake with free flowing exhaust. How much estimated H.P.?

 

Well you have a speed sensity system so tuning the car would help greatly.

There is no saying for sure as every thing you do to a car compliments other things, No 2 cars and there mods will net the same thing. Your current altitude, miles on the car, trannys shape, weight, and so forth play a roll in what you can gain with the mods. But I will say headers, a cam, and porting those heads along side with tuning the car will net you the most HP you can get short of n20 or boost.

I at one time ported/polished my heads/intakes, added a delta 260 cam, and did some eprom tuning. I was willing to bet I gained a solid 20 hp at one point. I have a 91 3.1L also in my car.

 

I was wondering how is your transmission and rear end holding up? Did you rebuild it or get a heavier made transmission along with your rear end?

 

port the heads,get a set of comp cams valve springs, i just reused the stock locks and retianers on my motor and i spin my motor up higher then anyone else here and never had an issue

buy the 260 delta cam not the 260 comp cam

the v6 cars unless a 5 speed will have a hard time breaking the rear end .
the transmission is fine as well unless u start making some serious power at that point a vette servo , shiftkit,megaboost valve and a trans cooler are all good ideas

 

Tranny is doing fine here along with the rear end.

 

Assuming that "free flowing exhaust" means headers and a mandrel bent catback, probably 15-30. But it will also drastically improve responsiveness. My 3.4 with pretty much the same mods is the most responsive car I have driven to date, partly because most cars these days don't use MAF for their primary air metering, and most have gone to electronic throttle as well(it delays WOT, supposedly to soften the blow to the drivetrain).

 

Okay, thanks for the input. I was wondering with a 3.42 ring and pinion with the 3.1 v6 camaro with computer modding, turbo and intercooler with the ebay kit that has a turbo with a .50 A/R Compressor, .63A/R Turbine and thinking of having a 8 or more boost controller what amount of boost would be best. Along with the part that it is a broke in overhauled engine and its ported and polished and delta 260 grind cam. What would be my hp and how fast would I be able to go 0-60?

 

0-60 times??? I record about 5 seconds flat on the street.

Heres some of my vids. 3.1L Turbo. Alky injection, 12 psi on one vid. 48Lbs injectors. Delta 260 cam, walbro 255 FP, 2800 stall convert. Intercooled but the alky really does the work. $59 tuning(basic chip burning nothing fancy) 3 Bar map, Ported polished Heads, all custom(home made piping) The turbo is a Ebay special. I think its a .57ar .69ar one but project 89 knows the turbo better then me. It cost 118 bucks last winter.

About 1500 bucks as of now into ALL the mods. Cars fast!! And fun as He$$!! I would estimate im somewhere arround 300 or so HP and the Tq is alot more.

Track time
burry the speedo 14psi
Famous saying I've heard about 1000 times. Its not the amount of boost that will kill the car, its the tuning.

REMEMBER psi(boost) is just resistance, not always flow(cfm). So 8psi on someones set up may produce more or less hp then the next. Turbo selection, intake tempeture, and a whole bunch of other stuff will effect it.

Ive pushed this car I know that and its held together for a whole season of racing and beating. This was my first attempt but it is ALL ABOUT THE TUNE!! To keep that engine in one piece. The drivetrain is a different story..lmao

 

thats cause ur intercooler is to small fast.

anyways if ur going to buy an ebay turbo kit dont buy one of those bundled kits that includes everything cause half the stuff u throw away like the oil lines the turbo timer is useless etc etc

u save alot of money by buying the turbo,wastegate,intercooler,and bov seperatly, and u get exactly the parts u need

 

if u want a super cheap deal on turboing ur v6 jump on this
https://www.thirdgen.org/forums/engi...rbo-parts.html


turbo wastegate bov flanges 36# injectors and an intercooler for 320 bucks shipped

with the exception of the intercoller this is all the right stuff, not sure if u could make that intercooler work but i bet he would knock some of the price off if u bought everything but the intercooler

 

Thats a good link dave. Nice.

 

Nice. I will look into that. What ring and pinion gears are best for a 0-60 time and take off. I was looking into 3.42s or 3.23s. Are there any differences?

 

3.73

 

Agree

 

I thought about my turbo build for awhile and I want around 7-9 psi of boost and I heard a 2.8 ecm can support this while a 3.1 only lasts for 3 psi. So I know I will need a 2.8 ecm and a maf sensor right? I do not want to tune I only want to run 7-9 psi boost.

 

If you don't want to tune, don't add a turbo.

While people may have used the MAF system up to 7 PSIG, it is less than ideal.

The only way to make the system work and reliable, is to tune.

 

as being one of those ppl who made themaf system work without any tunning , other then an adjustable fpr and fmu i totally agree with six

while it does work there is tons of power to be had by tuning it example it took 18-20 psi of boost with the maf system and fmu to get the same power i make now at 9/10 psi


the maf system is nice cause its a very cheap way to get a turbo on the engine, but its performance is less then stellar. the only advantage tot he maf system is that if ur on a very tight budget it can allow u to get the engine turboed, while u save up for the tunning hardware and or a standalone ecm system

 

2.'s all got 3:42's get 4:10's
3.1 comes with 3:42 is a stick and 3:23 if auto , decent upgrade is 3:73's or 4:10's


if u plan on turbocharging for sure go with 3:73's as 4:10's may be a lil much

 

Agree with above. And to edit it.. a speed density should be tuned regardless the boost, i bet 3psi with the right turbo would dust the engine.

 

correct a speed density system stock , will not provide any additional fueling or timing retard in stock form, the engine will lean out considerably with every pound of positive presure


thats the advantage of the maf system versus the sd system stock for stock u can atleast drive the maf system , not so much with the stock sd system

 

Really? You haven't driven a modern motor huh? Man, it's like night and day. I love my Camaro but it cannot compare to a modern engine even against a modern 4 cylinder in responsiveness.

 

One thing that kills our throttle responciveness is our static compression. In the books its from 8.5-8.6:1 Great for a turbo but horrible if you want all engine and don't mill the heads or use other ways to bump it up.

 

Yeah, add in the weight of the car. I switched to the Bosch spray injectors from the Bosch pintle design, gained quite abit of responsiveness. Didn't expect it to be so different.

 

Our cars dont weight that much compared to say a loaded GTA or Z28. Depending on what you have under the hood and options on the car. I dont have any hvac stuff, or emmisions stuff period, a few other little things are gone too. But do have a 20-40 lbs of turbo/piping to add. Have power windows/auto-trans and still weight in at 3060 without me in the car. IIRC back when it was stock and had all the original stuff on it it only weighed 3180lbs without me at the track on a somewhat low tank of gas. Thats decent and so is the handing. Its just the stock 140hp that suxs on our cars and makes the straight aways seem like a horrible experience when it comes to performance.

 

Does anyone know where I can get my prom chip burned? For my 2 Bar map sensor?

 

Ill burn it.

 

Really, Cool! How do you want to make the arrangement?

 

Pm me. Why do you have a 2 bar BTW??? Are you boosted?

 

Going to be soon. Hopefully! I was going to put in 19 lb injectors, but I want to run more boost. So, I want to get the 255lph fuel pump and bigger injectors!

 

get 32lbs at minimum, injectors if you go boosted. Take it from me. I started with 28lbs' and maxed them out quickly.

 

I got 32lb injectors. So, what are the power differences stock cam vs 260 grind on a turbo (Garrett t4 divided .50 a/r inlet compressor and .84 a/r exhaust turbine) Will the 260 grind produce more power? Yeah, I was thinking of a rebuild I have 165,000 miles on it and it runs great, but I will do a compression test and cylinder leak down test on it. I bet I can run higher boost and get more hp with a master rebuild.

 

What do you think?

 

Did you do a compression test on the car yet?? IMO if you havent turboed a car before and this engine is ok. Then just turbo that one. I wouldnt rebuild the engine before hand as youd rather mess up a stock engine then mess up a fresh one. Being a fresh engine or old on isnt going to help the learning process of turboing a car. Believe me I know.. You can run plenty of boost if you tune it right and your cylinders all turn out to be in good shape. IE 145-155 is a good psi. Basically make sure all cylinders are within 5-10% of eachother. My newer engine has all cylinders at 155-160psi. Thats about as good as it gets for a 100k mile engine IMO. Just remember its not about how much boost your running as thats only resistance.

As for the cam. A delta 272 cam would be even better for ya if your going turboed and are tuning the ecm.

32 lbs injectors will support a good 300-325 hp so those will be sufficient.

What is the number on that turbo?? The garret part/serial number??

 

I have a quick question? How much max PSI boost for a 19lb injectors vs 32lb injectors?

 

19 lbs wont handle much at all for Hp/boost.

32lbs..... 325 or so HP off the top of my head.

 

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Can you tune a stock cam and how much do you want to tune it. What do you need to know to tune it properly? Thanks!