What are the chances of a GB on this over the summer? This definitely looks like quite a setup, barring CARB certs and what-not.

 

i don't think that's the price for ball bearing.now $7450 is the price i saw on SGP racing for 350z/g35 and you have to pay more to make it work on g35? and also the front bumper issue.eventhough it works as it right now.but for the intercooler to work to its maximum protential,you would need to change the bumper.isn't it recommened by APS engineer? so the bumper cost plus paint & install.there're pro and cons on everything in this world.nothing is perfect.

who does cover labor? APS? if you sell something to people to use every day,you don't offer to cover labor.



APS car has exhaust.SFR car has exhaust and intake manifold.if the manifold make 39hp different then prop to them.

SFR # is VERY conservative.for me,when i upgrade to a twin turbo.i look for more HP.sure you can get the motor to pump out as much power as you want.just increase the boost.at some point if you think the motor can't take it then you bulletproof it and give it more boost.the trick is to make more hp at a lower boost.that's the way i look at it other than the fact that it got to be reliable.which SFR kit already proven.

and that's EXACTLY what people do when they want to go FI.what get me is all this going on BEFORE the kit being made and proven.that's why i did not say anything before i see some numbers.but guess now i'm saying too much.

i hope you're not upset at me PETER.SFR did not pay me a dime to say all this.it just me wanting to say what i see.final word: you've done a good job.
steve.

 

Ask 350Z owners who has the proven product, APS or SFR. There is a member here that saw the SFR system in person and was very impressed, but from what I understand the only experienced shop with those kits are in California, not much help for those of us on the east coast.

 

Ok, not to change the topic but what about the Single Turbo Kit? Since there wasn't very much to change to fit the TT to the G, would this also apply to the ST? Just a few parts to make it fit?

 

Good point.

 

The APS/Garrett Dual ball bearing water cooled turbochargers have sufficient MASS AIR FLOW to support approx 800 Horsepower at approx 16 PSI turbo pressure.

500 WHP would be very easy to obtain (we have run over this power level on a dead stock 350 Z) with just test pipes and some additional computer mapping, about an hours work on the dyno.

Bottom line, APS tuned the G35 with a safe and conservative tuning strategy (with approx 5 degrees of timing retard and rich/safe air fuel ratio), I'd recommend that around 400 WHP is the practical/safe power limit for a dead stock VQ engine, that said if the owner of the G35 is not scared 500 WHP is obtainable from the stock APS TT system, only limited by the stock APS fuel system.

The base APS Intercooled Twin Turbo system was designed to be a total solution for a daily driven G35. As I said previously with a large enough fuel system (currently in development) and a built engine the APS TT system has the capability of producing around 800 Horsepower.

To be honest though I doubt that many guys will want/need more power than 500 WHP because this will require a built engine (with an APS TT system all that's needed is a nice set of forged rods and pistons to generate this power level), though if they do then they will obviously will need to have a serious budget to match their power goals, all good.

Not at the moment though I will see if we can make a small vid for you guys need week and no problem at all to answer questions for you guys, it's my pleasure to do so.

Thanks

Peter

 

I suspect those power figures are utilising a very quick accel ramp rate on the dynamometer test, from dyno testing that we have conducted previously it's very possible to alter the power reading by approx 30 WHP simply by this fact alone.

Bottom line, imho unless dyno tests are conducted on the identical fuel, in identical environmental conditions, indentical dyno, and by the identical dyno operator I don't get to concerned with dyno power readings,there are just too many possible variables that can impact on the power readings.

I think the most accururate method of knowing/verifying engine power is speed over distance, what MPH the car runs over the 1/4 mile.

After all we don't spend our life driving cars on the dynamometer, the street and track is a lot more fun.

Thanks

peter

 

Kevin in my view your thoughts are spot on, APS is utilising a very conservative tuning strategy to achieve the 400 WHP, (ignition timing retarded 5 degrees at full load/high rpm and a very safe/rich air fuel ratio) in fact the car only spent approx 20 minutes the dynamometer to achieve the power level.

APS is not attempting or wanting to build dyno Queens (fast,enjoyable, and reliable street/track cars is our aim) and APS are also very mindful of the mechanical limitations of the stock VQ engine, I believe that around 400 WHP is a common sense power level unless the owner is prepared to build an engine with bigger forged rods and pistons.

Happy boosting.

Peter

 

APS only utilizes Garrett Dual ball bearing water cooled turbochargers, these imho are the most advanced and relaible production turbocharger on the planet.

Correct, turbochargers are rated in lbs per minute of mass air flow, you need to look at the exact compressor flow map to see what mass air flow is available at what pressure ratio and efficiency.

Certainly this is one issue (though not the only issue) that will impact on the power and torque generated and in addition engine reliability.

Thanks and this is what APS is all about, a very complete thoroughly engineered and tested intercooled turbocharger system that limits the grief for our customers.

It's also our aim to provide a practical path to higher power levels in the future without adding high cost, the base APS TT system will support 500 WHP with only the addition of stronger rods and pistons.

Yes and we have used them in some turbo charger applications.


If the bypass orifice (wastegate port) is correctly sized then the internal wategate is my preferred option, ultimately all a wastegate does is flow excess exhaust gas.

The internal wastegate design is utilised by virtually every OEM car manufacturer on the planet, I'd say that they're very reliable.

Thanks

Peter

 

I just officially ordered my APS TT kit and exhasust for my car!

I aslo ordered cams and valve springs, all per Ted's recomendations. What is the APS exhaust made out of? When will the 'g35' adaptor kit be ready? I would prefer to go that route, but my car HAS to be done by May 20th, so if I'm forced to custom fab it all myself I am prepared to do that.

 

I'm not sure what's possible with a group though if you are serious then it would be worth talking with one of the larger APS dealers in the US, Tuan at GRD would be a good place to start.

Thanks

Peter

 

Not upset at all Steve, we are all entitled to our own opinion, good luck with your own G35 project.

Peter

 

I'm sure that the turbocharger system market for the G35 and 350Z is very large in the US so there will be many companies competing strongly for market share.

The reality is that APS is more quality then quanity driven and this will always be our position, fact is APS is turbo system production limited to some degree as we will only use Garrett dual ball bearing water cooled turbochargers in our intercooled turbo systems. These Garrett dual ball bearing turbochargers are very difficult to purchase in high volume as there is a world wide shortage at the moment as demand is so high.

I'm sure there's plenty of business/sales to be generated for all of the major players in the 350Z/G35 intercooled turbocharger market and consumers will choose what best suits there power and engine reliability needs.

Thanks

Peter

 

Most likely though we have not yet fitted up an APS intercooled single turbo system on the G35 coupe, this will most likely happen over the coming weeks after APS engineers have completed testing on the APS Twin Turbo system.

I will definitely keep you guys up to date with progress on the APS single turbo development to suit the G35 coupe.

Thanks

Peter

 

Peter,

If you are serious about a RHD model, I'm sure you can acquire a used Skyline GT350 from Japan--probably less costly than a conversion....