Could i run stage 3+ on a M62 and not have to worry about the supercharger dying anytime soon?
Or is a TVS my only option
I'd like to put a 2.6 or 2.7 pulley on my M62 with 60's or 80's injectors, smaller belt,exhaust,manifold,intake, H/E. Cause id rather just blow less than a thousand and be happy than really spending 2k+
Also will port and polishing the supercharger and replacing the couplings will increase the life?

 

all kinds of questions here...
stage 3 is an m62 option. sc life depends on how much you drive the car and how high you rev the engine on a regular basis.
my car had a 3in pulley its entire life, until 55k when the bearring started making noise, we took it apart and the bearings were no good. so i got a tvs

if youve got nothing done to your car, a good start would be stage kits from zzp or ottp... both great kits, under a grand and great results.

2.6 or 2.7 great pulleys only need 60's for them, 80's are for when you go way up in the rpms and are using a 2.5 or tvs.
for exhaust its all prefference, you dont need bigger than a 2.5in until you get closer to the 280whp mark.

port and polish wont help the life of the sc, but it will make it flow a bit better and be a bit louder.

also when you figure out what your going to do, make sure you find a good tuner and get it done right. search the site for a thread on local tuners

 

your SC will probably outlast your motor. They usually do.

 

You asked the exact questions I was going to ask. I would like to put on the Tvs blower because I saw a dyno sheet with just an intake and the blower swap and it pulled a 281 at the wheels. Completely stock except for the blower swap and intake. I like that. I am going to keep my eyes posted on this thread.

 

Heres a question how hard would it be to TUNE my own car?? What programs/Tools do i need? or is just 2 expensive
a buddy of mine has a srt-4 and he ended up just buyin a piggy back are we able to do the same?

 

you could buy hptuners , thats a good option for ya.

 

Say i bought the tuner and my car is Bone stock from the factory for 500 for a hptuner could i get some horse outta my car or would i have to wait for some mods?

 

You can get some power out of the car but you will obviously see more with more mods. Another option is just finding a local tuner like myself to do it for you. It's a good idea to have someone who is experienced and knowledgeable in tuning to do it for you, tuning is not an easy task!

 

yeah i know but i don't wanna be a burden everytime i do a new mod i gotta get it retuned cause i know if i do stage 2 im going to do intake,exhaust headers,H/E but probably not all at once

honestly if i did the Electronic cut out would u need to tune it or could i just let it be? cause i'm really dyin to do that

 

Honestly. You should retune after any modification you do to your vehicle for best performance. Also, I have an intake and stage 2 and really want an upgrade. It is nice but I want more umpf. Tuning is something that would be good to know how to do in my honest opinion but it is hard.

 

don't tell that to my car, with the turbo I was only running a 2.5" and it put down 400whp.

scavenging of the exhaust is just as important as size, you could put a 3" exhaust on there and it would barely see any benefits except maybe a few % points on the top 10% of the rpm band... why kill the low end torque just to have 3 extra hp in the top of the rpm band?

i'll take a huge gain in the midrange over a small top end gain any day

 

My M62 Dyno Versus my TVS Dyno.. 2.85 pulley on the m62, 3.15 on the tvs.

The only other difference between the two is that i had a shorty header with the tvs and i had a ported manifold with the m62

P.S. This is my photoshopping the two graphs together.. so, don't get too critical..lol

 

no thats a different sc. cobalts have the m62 and the 3.8 has the m90 i believe

 

turbos and sc's are different. you are correct withdiffsize exhausts make diff power in diff places, but with the tvs the 2.5 pipe is holding things back after 280 hp. you onthe other hand would havegained more low end with a larger exhaust because yourturbo would spool up faster. and the sc cars dont have to worry too much about low end power either

 

it depends on the type of exhaust, velocity is just as important as size. get a big exhaust with high flow and little scavenging and your performance would be worse than a slightly smaller exhaust with better scavenging and velocity.

those peak numbers at the upper rpm band are irrelevant to anyone except people selling products and dyno queens. I would take a 20tq midrange jump over 2500rpms over a 25hp peak number any day of the week. anyone that races will tell you the same thing. and a big exhaust doesn't help midrange specs, it's a trade off between low-mid to top end.

big exhausts don't = automatic performance

 

Turbos are different from SCs in just about every way...

My 2.5 exhaust was too small for my turbo, and i opened it up with the 3"...

You on the other hand may have had a different turbo, and a motor that may have flowed differently... and were able to use the smaller exhausts..

The TVS, on the LSJ, if your trying to make any power over the original TVS pulley setup, a 3" exhaust needs to be used...

Im not saying you arent right, because you are... But different applications require different parts..

Your correct on saying that a bigger exhaust isnt always better... but this isnt ALWAYS the case...