With all the opinions, redirected answers, and half truths on this forum about the APS TT system, its impossible to figure out what kind of numbers people are actually seeing. This thread is for people that actually have the APS TT to share their info with the rest of us. If you dont have the system, or if you just want to share your thoughts on which TT is best, please use another thread. Here is the format:

internal engine mods
other mods
tuned or used "out of the box" set up
RWHP
RWTQ
where installed/tuned
price for installation/tuning
miles on kit
other comments

If you have any dyno charts, please post them. Remember, this is only for real world results from actual owners, not manufacturers, dealers, distributors, friends of a dude who thought about maybe getting the APS, people who saw the APS at a booth at a show, etc. Thanks!

EDIT- Ive posted this on the FI forum over at my350z as well.

 

Hey Brittian,

Check out this thread on my350z. This guy just got a APS TT installed on his 350z and he is only putting 320hp to the wheels. He mentions that the shop tuned it for safety. I am a bit confused by this. I thought Peter said there is no need for tuning unless you modified the motor. He stated the APS TT is a plug and play. Why did the shop tune this guy's car if his motor is not modified.

Here is the link http://my350z.com/forum/showthread.p...20#post1443120

Here is Peter's post about no tuning needed.

There is a guy in South Florida that dynoed 360 to wheel with the APS TT on a 350z. I am not doubting that the APS TT is cabable for much more...up to 700-800rwhp, but without a qualfied unichip tuner in your area I don't see how it is possible.

For the record I am not an APS hater. I think APS has the best FI system on the market, but if you don't have an authorized unichip tuner in your area you will not be able to hit your power goals if they are higher than 430rhwp. In these two cases these cars did not even break the 400rwhp mark.

 

Gman, I feel ya. ive been following that post and was pretty disappointed with his results so far, lets hope he gets better numbers. I was also wondering why he needed to tune it just to get over 320, I thought it was good for 400 WHP out of the box.
HOWEVER, all this is going to do is turn this thread into another "APS is great/APS is overrated" thread because now Peter is now going to feel obligated to reply and stick up for his company. I dont blame him. Peter, we'll acknowledge APS is one of, if not the, best TT set ups on the market if you waive your right to defend your company in the interest of keeping this thread purely informational similar to the wheel threads on the wheels/tire forum. Thanks for your cooperation, guys.

 

Well in all fairness to APS TT I have seen several 350z that had the APS TT installed and went over 400rwhp on stock motors and yes so far to date there have been no reports of any motors damaged. If I recall correctly these installs were done by Tuan @ GRD. Unfortunately we don't have a Tuan a every city. Tuan himself has his 350z tuned to 505rwhp on his stock motor and still no damage.

 

Brittain,

Regarding the 350Z in the desert, to be fair there appear to be several variables.

APS typically says 380-420 already tuned, outta the box. I always interpreted 380 to be 91 Octane and 420 to be 93 Octane. He is using 91 Octane.

Apparently the baseline dyno he used shows 210 for stock, which seems quite a bit low, so it is quite possible his 310-320 is low,

The range of 380-420 is given with a 'proper' exhaust setup, out of the box tuning. This guy is running bone stock exhaust, and was advised he would likely see an additional 40 ponies if he replaced the exhaust,

The out of the box, no tuning required scenario would be under 'normal' conditions, which include something other than stock exhaust. As well, this guy lives in the desert where it gets really hot.

My interpretation is that the tuner deliberately 'detuned' the out of the box setup because of the stock exhaust and very hot desert conditions. This appears to be the reason why the tuner made it 'safe' and did not just use the standard out of the box tuning. So, my reading of it is not that he 'tuned' it UP to get 310-320, but rather, 'tuned' it Down to account for the specifics of the situation.

Anyway, that's my read on the thread referenced.

 

alright, lets just throw the format out the window and discuss.

I see your points, and will concede his dyno might be low. but I dont agree with the exhaust part. if you check their site, their out of the box, bone stock, no add ons except TT dyno shows 405.8WHP on 93 octane, and 380.4 on 91 octane. thats a pretty large variation just to attribute to a low-reading dyno. with the addition of test pipes and their TD exhaust, they made 470.2 WHP on 93 octane, although Peter will tell you he does not recommend this set up on stock internals, and their site even says it is only for "development and durability testing."

As far as the shop detuning the TT for safety reasons, why would he have to do this? We have been repeatedly told the APS TT is perfectly safe with the "out of the box tuning." how can you improve on perfection?

This guys 320 WHP puts him in stillen SC territory, not TT range. Im sure there is an explanation, and Im sure Peter will soon chime in to tell us.

 

Hehe...sorry your thread isn't going excatly as planned

I really don't know anything about this except what I read on the various thread and on APS's website.

But on the exhaust, I believe you may be mistaken. If you take a close look at those two dyno's they do not say bone stock exhaust. Rather they say stock cats. I believe this is part of their strategy to keep the stock cats in place to meet CARB requirments. But I am pretty sure that on many posts APS says their numbers for those 'stock' graphs are based upon stock tuning, stock cats, and an improved exhaust setup.

 

Ooops, forgot the safety thing...

This is in part what I am basing my reading upon:

"He tunes it to minimize any possible heat from the back pressure of the stock exhaust, expecially with the hot Vegas summer on the way."

Anyway, again I don't know much about this stuff...but it would seem to me that any out of the box tuning is 'safe' assuming that the setup matches the tuning. My understanding is that the setup this is based on is stock engine, stock cats, aftermarket exhaust. It is possible that it is perfectly safe with completely bone stock exhaust, but my reading is that the tuner exercised his judgement to account for the bone stock exhaust and the desert heat.

Having looked at the APS site again, I think they should clarify those dynos and not just include the comment about cats, but about the whole system that was used.

 

I am curious about this, but I believe I am right. This is what Peter says in reference to recent testing on an '05:

The 05 G35 (298 factory HP engine) was completely stock (in fact it was brand new with zero miles on the car) other than the APS twin turbo system and true dual exhaust system.

 

I posted few weeks back, when I called couple APS dealers, APS kit out of box on STOCK Z, they were only getting around 330-340rwhp on stock boost with 91oct. I believe the G35 dynoed on the APS site, one test was with just an APS exhaust not tuned, and another test with APS exhaust and test pipes and tuned for more HP. That aps exhaust is a true dual with 2.5" piping!, BEST exhaust for any TT kit, will probably add 25-40 hp with that only. Most of the other exhaust in the market only have around 2" to 2 1/4" piping, more suitable for N/A or SC kits. Regarding the '05 G with APS TT recently dynoed at Brainstorm, that was also using an APS exhaust. Unfortunately that exhaust is not yet available for purchase. ....... However still planing on getting my APS TT kit.

 

Larry,

Have you confirmed the APS Intercooler will fit with the KenStyle kit? I'm seriously considering the KS kit with my APS ST. I assume it's the same Intercooler for both kits.

 

APS was able to fit the intercooler on stock G bumper, so there is no reason for it not to fit on KS bumper. The main concern from aps really was amount of air flow or ventilation for the intercooler with stock bumper. Would assume its same intercooler with the ST kit. ...... Brian, did you see the post where they cut the bottom bar on the KS bumper, looks better and will show off the intercooler, but I prefer stealth look.

 

Other than KP has anyone else started an APS TT install on a G35? To get around the tuning issue I'm using bolt ons to get more horsepower, plus I like the idea of gaining horsepower with the same amount of boost.

I dont really understand needing forged internals for a 93 octane map @ 8psi (which I've contacted tuan about and havent heard back) but okay. There are other alternatives to get horsepower, most obviously would be a true dual exhaust and test pipes which has already been discussed, I'm sure any aftermarket plenum especially the APS plenum will make a difference as well. Cams, Pulleys, Clutch/Flywheel are all options, I personally like the idea of a water injection because it not only has the potential to give horsepower (I've seen between 5-20whp) but it also reduces the chance of detonation. I guess it just depends on the individual though.

I dropped my car off yesterday to get the APS TT installed so I'll let you guys know how it goes.

 

I've seen guys go up to 9psi with the APS TT and not upgrade the internals. You should be fine.

If you change the cams you will need a custom tune...I am pretty sure about this. Someone chime if I am wrong.

Yeah me too! That's why I decided to go with a fully built SGP long block instead of the short block. This way I can make 500rwhp on 11psi instead of 17psi.

Keep up posted. I bet you can't freaking wait. Good luck.

 

you're probably right on the cams, personally before I spend the $1200 for cams and then $1000 for the install I'd just go ahead and purchase rods and pistons instead.

About the 93 octane map, I've pretty much given up on that until there is a unichip tuner in the area. I cant seem to get a response from anyone as of yet, it would be nice to get that little bit of horsepower but oh well. As GMan has stated that is the one frustration with the APS system, the number of tuners available are limited. But I also understand that APS has their reputation on the line and ultimately they are looking out for their product, customers, and their vendors.