[SE-R_Erik]

Thinking of making my spec v turbo, nothing to crazy cuz i still want to daily drive it...maybe some pistons and some cams?suggestions on cams or general info for anyone that has a turbo spec v...

 

[i68k]

you have quite a few options as far as internals, there are only a couple of complete turbo kits available like treadstone. normally when you change the cams, youll need something to control them with your afr. head over to b15u.com, there are many swapped and/or turbo people there with much more knowledge. you could also send a message to joe at 2jr and see what he has for you.

 

[SE-R_Erik]

im looking at a godspeed one, has the diy intercooler piping, tunning wise im not sure whats best an safc neo or an aem piggy back

 

[SHIFT_03SPECV]

stay away from godspeed

 

[SE-R_Erik]

What's wrong with godspeed, i thought they were good turbos ? What do you recommend?

 

[undertakernismo]

I'd try Treadstone's kit. It's pretty much a bolt-on kit (includes everything but the fuel pump, http://www.treadstoneperformance.co...me=Nissan+Sentra+SER+&+Spec+V+Turbo+kit+02-06) and it uses good-quality parts in it. Worth the money IMO. If you have an '04-'06 Spec V they offer UpRev Osiris for tuning, which is REALLY awesome .

 

[SE-R_Erik]

Just finished doing research, looks like a lot of internals have to be changed, never realized how many problems QRs had...

 

[i68k]

yea, the treadstone is a good starter kit from my understanding, otherwise you have to piece together everything, or you can upgrade to your tastes. i mean if you want internals, theres quite a few options, but you need to have a goal output.

 

[undertakernismo]

Just finished doing research, looks like a lot of internals have to be changed, never realized how many problems QRs had...

Define "a lot of internals". Because the amount of building you'll need to do depends on the goal you wish to reach. I'd say the weakest link in our engines ('02-'06 at the least) would be the rods, but you can use the '07 ones which are attainable. The pistons are pretty turbo-friendly (9.5:1 compression ratio) so if you don't want to push beyond 300-350whp I'd stay with stock pistons, granted a good tune and 93 octane fuel. Set the goals you're aiming for, then build accordingly...

 

[SE-R_Erik]

Will do internals, not to many cuz i still want to drive it daily...i read a lot of bad reviews of treadstone anyone ever order from there?

 

[i68k]

i havent ordered from them, but they do have the best complete turbo kit available. just remember, its not a high-boost kit, its just a bolt-on kit. its not to say you cant get a new manifold and bigger turbo, but if you dont have a goal output, you dont know where to start. i believe the treadstone bolt-on kit is already rated to 250whp, so like undertaker said, with some extra work you could be over 300whp. if you want like 500+whp, thats a totally different animal.

as for internals, aside from aftermarket, there's also parts you can use from other engines to match your goal output, parts from engines like sr20, qr20, frontier, etc.

 

[Bacon973]

I've daily driven my spec for over 3 years now. Stock motor, even still have the bsr in with not issues. Running off the 8.7 psi wg spring while tuned on a safc2. Ive probably put over 40k on the car now with no issues...

 

[SE-R_Erik]

What turbo setup are you running...no oil burning either?

 

[Bacon973]

no oil burning. 5w40 synthetic oil.. im running a 50trim turbonetics.

 

[undertakernismo]

i havent ordered from them, but they do have the best complete turbo kit available. just remember, its not a high-boost kit, its just a bolt-on kit. its not to say you cant get a new manifold and bigger turbo, but if you dont have a goal output, you dont know where to start. i believe the treadstone bolt-on kit is already rated to 250whp, so like undertaker said, with some extra work you could be over 300whp. if you want like 500+whp, thats a totally different animal.

as for internals, aside from aftermarket, there's also parts you can use from other engines to match your goal output, parts from engines like sr20, qr20, frontier, etc.

I believe Treadstone's kit is rated for 280ish whp running around 8 psi....which isn't bad for a bolt-on kit IMO. I haven't ordered one myself (would love to ), but I think it wouldn't be too difficult to get 10-14 psi out of the kit...that is, if the injectors are 550cc/hr or larger. I know Turbonetics used 680cc/hr on their old Spec V turbo kits, I wouldn't be surprised if that's what Treadstone Performance is using on theirs...

To put an example on how parts from other engines work, Ostar Motorsports currently has a Spec V running 743whp, and they're using a 2007 crankshaft and rods coupled to a set of 11:1 compression ratio pistons tuned on E85. So far that's the highest horsepower a stock displacement QR has done. They ran 11.27 @ 134mph not too long ago with about 100whp less than they currently have...