Hi folks,
I'm new here but ive been a lurker for a long time. I've liked cobalts since they first came out and I finally got my 09 ss tc this past summer. I absolutely love this car but I want to help it reach its true potential.

I'm looking for advice on how to upgrade my LNF, as the title says. I figure go big or go home so I'm aiming for 400+whp. I know a few things I need are; a good tune, probably several times before I'm done the car, I'm thinking trifecta, Ive read ill need a PCM reflash but I don't know much about it tbh, downpipe, better clutch, intake, larger front mount intercooler, aftermarket turbo, ive been leaning towards zzp for this but im not sure which to go with or even if maybe theres somewhere else i should look, hot and cold side charge pipes, I want BPV or BOV for sure lol, front and trans mounts, exhaust, valve springs when I hit like 350hp? And zzp says new control arms are a must?

Am I missing anything? I can't do it all at once so what things should I instal together and in what order? Any and all advice on what parts you recommend and why would be greatly appreciated.

 

First how did you decide on +400 whp? Second have you ever rode/drove a car that is +400whp and similar weight?

And finally how deep are you pockets?

 

HP Tune instead of Trifecta

 

2jz swap.

 

Just change your goal to 350 and you can make it on the stock turbo....

 

Exactly, unless you really have to be 400+. Ride in one that is first, lots to workout on the car with that much power, especially the clutch/trans/ and getting traction. Sounds good, but not as easy to live with especially if it's a dd.

 

That's a stretch without E85.

 

How reliable are these ko4 turbos at higher psi?

 

22psi seems to be the magic number. They can run 24psi fine, but some dude that was on this site for a while collected a lot of data showing that 24psi was pushing it over time.

 

they arent reliable at high boost to some degree..... remember though....turbos are wear and tear items. I spike mine to 27psi and fall back to 25 and i usually get 30 to 40k out of a turbo. I have been through 2 of them. However as most know i road race regularly during the season when i can so my car sees a whole lot of abuse.

 

to make 400whp u should get all bolt ons. k&n intake, zzp intercooler and charge pipes. the normal size intercooler not the smaller one. may want to get rotated trans mounts from powell. definitely should get the powell oil separator, zfr turbo, get the bigger one if u wanna hit over 400whp and a good hp tune from one of the awesome tuners on the site here. run as high octane gas as u can find, id do 93 plus meth injection or e47. that will get u easily to 400+whp. don't need to worry about the valve springs unless u wanna rev higher than 6800rpm. also get urself a good set of tires lol ull be spinning a lot. and make sure u save money for a stronger trans. cause with the torque ud be making it wont last. unless u get whoever tunes u to tune down the torque. that will make it last longer

 

OP, If you go for high HP, you will have high TQ. Tq is known to break these transmissions. If you must shoot for 400 then take care to have the tune boost ramped and never floor it low in 3rd. I repeat never floor it low in 3rd.

 

He said he wanted to go big. So... FMSR F35 Transmission

 

OP.

Go buy the OTTP s256 upgrade kit.

 

Valve springs should be changed out when your revving over 6200 more often. It's an insurance policy.

 

I wouldn't buy anything from that scam artist. Nothing he built is proven in real life. he just has a fancy computer to do data.....that doesn't mean anything until it's actually going into a car and holding its own.

 

ya if ur tracking, my car has been reving over 6200 for years with no issues. even gms1 sets it to 6500, they wouldn't do that if it was likely to fail, ya sure, it will last longer and it is peace of mind. id say if u are reving over 6500 a lot then ya. not that that's much of a difference lol

 

It's a peace of mind that's all I'm saying my car sees the abuse even on the dyno. 7000 repeatedly. On the street if I want to run it through the gears it's the same thing. That's why we developed our springs to 8000 but they have been proven to 8500 in the midget cars time and time again running alcohal blown le5 engines with solid lifters.... No problems there

 

start with boltons and tune, the move on to a bolt on turbo

 

Anyone in Florida want to help me/guide me through a valve spring install?
I would love some one experienced to help me do it.

 

High failure rate?

 

What part of Florida are you in? I just moved to Orland a few months ago.

 

He has not proven a damn thing on this forum other then some fancy lingo and bs. I have not seen any solid works data no real product no nothing. He offers absolutely no warranty on his transmissions and he doesn't build them in house. I don't trust his bs or his business. He bought our parts and basically reproduced then.... Matter of fact look at his valve spring description and read ours.... Other then adding some lingo robot it's basically the same craps. He bought 2 sets of our springs and high strength timing chain tensioners only to copy them to produce his own.

 

He never responds to Powell's legitimate and polite questions regarding their transmissions claims. Crickets every time. That tells me enough...

 

Good to know, Omiotek and colodude18. I won't consider them if the day ever comes that I need a rebuilt trans.