Hmm~ I'm not too sure.. Look at MRC's specials... https://my350z.com/forum/showthread.php?t=252562
although I'm not sure if MRC's Greddy TT special comes with an intercooler..

 

Even if it does come with the IC, I would go with the APS extreme. The fuel system in the extreme is more capable than the stage one CJM. The APS kit comes with water/oil cooled ball bearing turbos vs the oil mitsu turbos with the greddy. The APS kit includes the big test pipes off the turbos. I think for the relatively small difference in price, the APS kit is the better value.

 

and what EMU does the Extreme kit come with?

 

it does not come with an EMS. you can throw a utec in for well under 900, or spend the big money on an Fcon Vpro

 

Correct, with the I/C...This is unheard of!!

 

I think you should be comparing the Greddy TT kit to the APS TT tuner kit, not the standard kit. The tuner kit doesn't come with a fuel system or ECM. Between those two kits, I think it's a coin flip.

 

So with 650 rwhp you mean 700+hp on the block itself? Still nobody with EWG for the aps tt kit?

 

i have a question..

all of these HP high hopes but are any of you thinking about the tranny and axels?

 

We used the 800whp Axles.PM me if you need a set.

 

soon...very soon...

 

I can't wait... I just bought the APS TT kit.. Since GTM dropped out of the APS EWG project, who is making it??

 

Seeing BriGuyMax's location, I'm guessing GRD.....I could be totally wrong however.

I'd love to know as well......

 

The External Wastegate idea is great for controlling boost. However the standard GT25 .60's the APS kit comes with will be past their peak efficiency at 18psi. There really is no point in re engineering their standard kit..The extra money and labor spent would best be spent on the APS extreme kit in the first place..
IMHO External wastegate conversions on the standard kit are not only useless, but very costly also...you will have to remanufacture a turbo manifold for the kit, to get the WG collector at the exhaust before the turbo, any other design simply will not work reliably. The labor and cost involved to remove and replace your APS standard manifolds, would be time and money best spent on upgrading the entire kit....

 

how much to just get the Extreme turbo's from the kit with the 3"testpipes without buying the whole kit?

or how much to just get some turbo's to handle more boost? with exwastegates already on? someone on here should start making an upgrade kit with bigger turbos and wg's to directly replace the aps turbo's without getting the extreme kit.

most of us will already have a bigger fuel system. is the piping to the intercooler and intake any different from the extreme to the regular kit? seems like a simple turbo upgrade could save us money.

Jimmy

 

you can get a set of internally WG'd GT 28's with work done to them to flow about 400-450 each for about $1150-1400 range each..but there will be some other modifications you will need to do.

 

Last I heard the turbos on the APS kit are GT2871s. You can have whatever opinion you want about the turbos in the standard kit and a EWG setup..but the fact is even if you only run a max of 18psi they would still be worth it to not have to deal with the very unpredictable and hard to control or swap actuators. Most people with built motors will probably never have a need to run over 18psi anyway. Fabbing up some log style manifolds from a jig based on the APS manifold isn't going to be a tall task, and from there all you need to do is route the dump back into the exhaust on the DP...no big deal.

 

I sent out the APS turbos to be inspected by ATP turbo, one of Garretts largest performance dealer in the US.They speced them to be a GT25, with a .60 AR good for about 350hp each there were 2 upgrade options using those housings but were hella expensive with machining..A GT2871R would be an option like I said..
As far as making log manifolds, by the time you buy them for aprox $700-$1200 projected cost...Remove the APs ones and reinstall them with external WG's ($150-$200 each not counting extra piping) you well over $2500 in parts and labor..
The Extreme kit is $1500 more than the standard and comes with a fuel system good for 600-700whp..
Case closed IMHO..

 

For a ballpark, add about 15%-20% for drivetrain loss to get your crank hp number. A lot of this depends on the dyno used, so my numbers are merely guesses.

 

What kind of other modiications are we talking about here?

 

Funny, because I have a standard APS kit and considered the extreme for about .2 seconds before I realized I didn't want their fuel system, and huge overkill intercooler for my 600ish whp street car. I haven't spent a cent on my "external gate" setup for my standard kit yet. I pulled the motor myself and gave the manifolds to a friend that does fab work and he's working up manifolds as we speak which will not cost me anywhere near $700....all I need to do is buy the wastegates and compensate him for his time....total cost should be under $700, and I'll have a lot more flexibility with my boost control than the internal gate APS guys.