Not possible my friend. A turbo simply can not go from unspooled to fully spooled "instantly". Its physically impossible, and I know your exagurating, because the turbo M3 I tuned was stroked to 3.2L and had a TINY turbo, and even that hitting it at 4000 rpm full boost was there a fraction of a second after my foot hit the floor, then it was gone by 5500 rpm. Either way, after riding in my friends Evo X with intake, and seeing him floor it at like 2600 rpm and get like 2 psi and just sit there slowly building boost, that was the final nail in the coffin for me EVER getting a turbo. **** that ****. Turbos are too transient, they either have lag in the extreme low end, or die off in the top end. Superchargers, are there at all rpms and don't die in the top end. Yeah they draw power to work.... so does an A/C compressor, people don't bitch about that! Either way, turbos definitely have their place, I love turbos... on the right car. Also, I can not condone putting a turbo on a car called Cobalt SS SUPERCHARGED. If it was an N/A car (more than 2.5L) I would probably actually put a turbo on it instead of a supercharger. Only if it wasn't my daily driver.

However this is a thread about my build. My build meaning my car, how I'm building, and progress. So if your trying to turn this into a turbo vs. sc thread, GTFO and do it elsewhere Also don't say I'm under educated, because I've done much more research on turbo dynamics, sizing, theory, and other misc turbo bullshit, than you think.

 

 

Good Stuff, Blown.

The only thing keeping me off the road is that I seem to have misplaced my front Trans Mount.

And now I need to rewire all my gauges. Even though the stock boost gauge turned off with the key... the power source, evidentially, doesn't. That's why I hate wiring **** up. I have no clue as to what I am doing.

 

yep, i will be waiting. Still won't be putting down as much as me though

 

I don't know about that mang. I don't even think your motor would handle 480 whp with out exploding. Your still on stock internals IIRC.

 

A turbo cant spool or unspool but you can hit 20 psi if your wastegate gets stuck closed and doesnt bleed of the boost. It happens.

 

this damn car done yet

 

Soon. All the parts will be frozen by the end of this week (hopefully). Then the head goes to the machine shop. When it comes back, its motor installation time

 

I was talking on the 2.9 on pump

 

I don't know. Your stock motor with TVS against my built motor with stock ported blower should be pretty even. My goal is roughly 335 whp on pump gas with a 2.9" pulley. Either way, AZ pump gas is spittoon juice 91 octane, compared to back east pump which is high quality 93 octane. I deserve a handicap in the competition!!!

 

you aint kidding we get the same crap 91 out here in cali

 

Why so low????
We have 87, 91, 93 and 94 here at the pumps.

 

cuz california sucks

 

Because like EVERYTHING in california it prolly causes cancer, haha, has anyone else noticed there are so many products that have that warning on it about cali.?

 

The whole western part of the US has shitty gas. It ******* sucks, knowing that people back east are pay the same price we pay, only they are getting a MUCH MUCH better quality product. Thats why its had to compare an AZ pump gas car, with a NY pump gas car. Its a high performance car running on horrible 91 octane, vs a high performance car running on Sunoco 94 octane, practically mild race gas

 

it won't be even, look at the facts your blower is going to spit out 624 cfm at 8200 rpms, i will do 792 cfm at 7200. My ae will be 65%, yours will be in the 30% range if that. You have everything done for the car you just need a more efficent compressor plain and simple. On pump your going to be lucky to get 15* timing out of the car unless you are running meth, which i don't believe you are. Im not being a dick im just being realistic.

 

Thats funny, because that would mean it would be WORSE than it was before. Before I was running a 2.6" pulley, making ~19 psi. I had just about every intercooler mod you can imagine. For my pump gas tune at the track I ran 18* degrees of timing (at the end of the run, my IAT2 would be ~125*), and I trapped 107.1 mph with that tune. I would never see a single degree of knock through the whole run. For pump gas and roll racing I ran 15 degrees of timing due to prolonged WOT and more heat. Once again, I would see no knock what so ever, all the way until I let off at 140-150 mph and my IAT2 would be 170+. Now, that was spinning the **** out of the blower, and running 19 psi boost. So you mean to tell me, NOW that I'm spinning the blower slower, and running only ~12-13 psi, it will knock WORSE than before?!?! I'm not understanding your logic

*EDIT* Compressor efficiency aside, you failed to mention how my engine will be VASTLY more efficient at moving air than yours will

 

and then your egt's were enough to light the earth on fire.

 

Yet another cause of global warming found.

 

don't let the epa here you. they will contact opec and raise the cost of crude some more.

 

I'll whisper next time. lol

 

 

lol.
and btw, we don't have 94 in ny anymore... only 93 octane.... blows

 

Oh quit your bitchin

 

if your redline was 7400 on the 2.6 you are spinning it almost the same rpm ( withing 100) as the 2.9 at 8200.

No doubt your engine will move it better but whats the point when you don't have enough going to it .