Which one of the turbo kit out there in the market has the highest potential for greatest power output? APS? Greddy? SSR? obviously it depends on the other accessories, but which setup is likely to yield the most power?

 

if you use the search function, you can get your questions answered and avoid asking ones that have been answered thousands of times before.

 

So far GReddy has made the highest hp. Someone on this board made 620whp with it. The APS kit's stock turbo actuators are only good for 12 psi, around 500whp, after that you'll have to change it.

 

Right. But if you go Greddy you'll have to swap only the wastegate springs, not the whole gate itself.

 

With the APS base TT you don't swap out the "whole gate". the WGs themselves are integrated into the Garret housings.

To get above 10psi base pressure you just swap out the "actuator cans" (about $90 per side). Note it's far easier to do this during kit insalltaion "before" the snails are bolted up to the exhaust manifolds.

 

Not correct actually, APS has 720 RWHP on their R&D 350Z. It, of course, has an APS TT system.

I would say GReddy and APS are pretty even for most airflow potential compared to other kits, as far as when they reach their maximum efficiency the 350Z/G35's would be around the same HP (all things being equal)

Of course the power won't be exactly the same because of both systems using almost entirely different parts.

(and just for the record, APS is only the highest power'd non-race-only 350Z/G35 we've heard of, at least one race team is well above 720 RWHP, but uses a custom setup)

 

BTW, I think the APS TT tuner system or GReddy TT would be best for what you want. The APS TT tuner system will have 12 PSI-limited wastegates already installed, so with a high flowing exhaust and test pipes, you may be able to achieve a higher PSI. (of course this will require tuning)

If you do decide to get the APS TT tuner system, you'll need to get an engine management system (such as GReddy eManage, GReddy eManage ultimate, etc.) and upgrade some fuel parts (such as a return fuel system, fuel injectors, fuel pump, etc.). If you go with the GReddy TT kit, you will need some other upgrades such as ignition timing coils, fuel pump, (might need higher cc fuel injectors), return fuel system, etc.

You can pick either of these up at our shop (Forged Internals).

 

Speed Force Racing's 60-1HiFi twin turbo kit has the most potential in it's turbos.

 

so if they both have the same "down the road" potential, if you get certain upgrades for each kit, then which one would cost the least for the amount of upgrades and end performance?

 

Probably GReddy. Though it depends on which parts you get. All parts being the same, I would say GReddy would be cheaper. Mainly because it will be around $400 cheaper than the APS tuner system, plus it already has fuel injectors, and an engine management system.

Performance is almost identical between the two, with the Garrett GT ball-bearing turbos that APS includes having a slight edge. Probably isn't noticeable to the average guy between the two, (all things being equal) though.

If you are interested in buying anything or want to compare the two kits some more, i'll either PM you or you can PM or email me.

 

Its 745rwhp on the APS car.

 

Ahh, even better.

 

But are they still using the same turbos as in the regular TT kit?

 

As far as im aware they are, their turbos are rated at 800 flywheel hp, so 745rwhp sounds right.

 

I 2nd that

 

The JWT system did pretty well in the Sport Z shootout.

 

Update:

"The turbochargers on the big HP APS engine are larger than the stock turbos in the APS twin turbo system, same type and brand of turbocharger (Garrett dual ball bearing turbos) just with increased mass air flow, all good and the larger turbos fit in the identical position my friend.

Peter"

 

the speedforceracing turbos are capable of 1000+rwhp

 

800 flywheel hp would be closer to 660-670 rwhp actually.

 

The original question was about "growth potential" .
The JWT kit uses 530BB turbos , which basically top out at about ~530bhp (430-470rwhp) for the pair , hence the name. This is great streetable combo on a stock block , but note they are on the small side of the spectrum when compared against the mass air flow potential of the base APS TT (~800bhp), Greddy (a little more) and SFR ( more yet). Upgrade the 530BBs for 700BBs and you'd be closer to the others in potential.