That was a great post Quamen, very informative and helpful. I have looked at the APS twin turbo kit. It seems to be a very good kit but is it tunable at all? I saw how you said that it seems the kit doesnt react well to other mods.

 

That has to be the dumbest comment I have read in a long time.

 

APS looks like a very complete kit as well now. I have until the fall to pick a kit but i deff want it to be TT

 

It is as tuneable as any other kit you just have to got to an authorized tuner in order to get it tuned unless you get the tuner kit.

This is also the reason there has been almost no problems with the kit in almost 2 years of it's existence now.

 

Anyone know of a APS tuner in PA or a surrounding state?

 

http://www.redlineperformancemotorsports.com/

380 Northgate Drive
Warrendale, PA 15086
Ph: (724) 940 3322


http://www.jscspeed.com/

79 Steamwhistle Dr.,
Ivyland, PA 18974
Ph: (215) 364 5929

 

Wow.. Quamen, that was a very informative post.

 

www.carv2.com is an authorized aps dealer and unichip tuner. they are located in wilmington de.

 

Man, talk about a lack of sense of humor. Lighten up, it was a joke. On 350zmotoring.com you would think APS is the cure for cancer. I was in no way bashing the APS TT kit.

 

aps TT is probably the best FI solution for DD but you really pay for it in kit and install. Factor in atleast 11k for install and kit alone.

 

Very nice.

To answer a few questions:

JWT uses a Fuel Pressure Regulator that helps deliver more fuel pressure thus NOT NEEDING bigger injectors for the 400 WHP level for stock motors.

Note: I have made 700-800 WHP with this system WITHOUT A RETURN FUEL SYSTEM...with my Daily Driven G. This is on race fuel mind you for that is at 23.5 PSI and on pump gas 550 WHP with my upgraded VRT/JWT BB700 kit.

IMO, It is not the WHP number that causes blown motors when NON-Built, it is the boost pressure (more thn 8.5 PSI) and How the cars tuning system is RETARDING TIMING to eliminate detonation. Anything over 8.5 PSI without race fuel will spell kaboom sooner than later.

Note: Many cars can make 450-550 WHP ON THE DYNO for 4-8 seconds without a built motor, yet when you want to drive them daily ON PUMP gas, you create a detonating TIME BOMB.

Detonation BLOWS MOST MOTORS. AGAIN...Detonation...And crappy tuning.

So no matter what kit you want, you must tune the car so YOU DO NOT DETONATE. Doesn't matter the kit, it matters the tune, PSI, and keeping the car from detonating.

WHY?
We build motors to make the internals stronger, yet with crappy tuning, even a built motor will blow if Detonation exists...


Good-Luck

M

 

Water/Methanol Injection is also a very valueable other option to race gas and much cheaper since you only spray it when you are above 5 psi and don't need it for daily driving

 

Are you having luck with Methanol?

We tried and had interesting results.

M

 

I had great success so far.
I'm running the Snow Performance stage II kit and it's been holding up outstandingly.
My fuel curve looks very good and I'm able to run 11.4 psi for the last 3 months.

th emagic number seems to be 51% water and 49% Methanol

 

Nice,

What FI components are you using?

And how much WHP are you daily driving?

How much is the system? Thanks for the information...

M

 

I run the APS TT at 475 whp 11.4 psi on stock internals. Crawford plenum, aps test pipes and exhaust, jwt clutch and flywheel

The Snow Performance Stage II kit is abou $300 and very straight forward.

I don't push the car hard as a daily driver (too much traffic in LA) but I go to the track drag racing at least once a week pushing it hard there.

The snow kit has a progressive controller that is pressure based, it comes on at 5 psi and then ramps up all the way to 11.4 allowing for an even flow of the water/methanol mix.

 

That is fantastic. I daily drove and tracked my G and Z before the major builds on 10-12 PSI yet with race fuel. We have 110 octane out of the pump around the corner so it was easy.

The cars made great power yet ultimately with my G one of my guys took it to get tires and a joy ride, not realizing the boost was turned up and on pump gas and it let go. Oh well, shoot happens...

So mad respect for you to have the power on the non-built motor and treat the detonation issue with methanol. I wouldn't reccomend a stock motor at that PSI to my clients for most are going to slip-up sooner or later and that spells dissaster...

If you ever want to build the motor, let me know. Would love to work with you.

Thanks again for the information.

M

 

thanks

I'm looking at different motor options right now, waiting to hear back from BuildZMotors on some pricing, of course you guys are much close to me...I'll send you a note later on

 

Let us know.

We have motors on hand.

M

 

The original post on this thread, by jtgli, was discussing which of the 3 turbo kits listed relating to info from AAM. And later people asked why no APS TT in the equation.?? Now a bit of this could be said of dealers in general. But AAM steers people away from APS TT and toward JWT TT in particular. Now it just so happens that AAM is not an APS dealer and AAM is a JWT dealer. Only a coincidence? It is just possible.... yes, just possible perhaps, that this business arrangement affects their advice. At least in part, because of a profits motive rather than entirely the best interest of the customer getting the best kit from a price, performance, and technical standpoint. Just something to consider along with everything else.

Yes, I have heard the arguments of JWT regarding running extra fuel pressure is a cure all for allowing you to run obviously the too small stock fuel injectors at 400 whp. Really good forced induction engine builders will tell you that is not the case. A really robust fuel system like APS running more fuel pressure, a fuel return system, and larger fuel injectors is the right way, the correct way to handle this from many technical standpoints. JWT did this not because they thought it was the BEST way to go technically speaking. They did this to hold down costs and undercut APS from a price standpoint and let the customer bear the increased safety risk of running too small fuel injectors and no fuel return. Why do you think the Z32TT had a fuel return from the factory and really good kits do as well? Even my waaaaay down market mitsu eclipse GSX turbo had a fuel return. Nissan and mitus would not have gone to the expense and just thrown them in there without good reason. Go cheap on the fuel system at your own peril.

Same thing with the CARB issue. It is in the best interests of JWT to leave out important parts of a good fuel system to hold down costs and get CARB certification from a marketing standpoint. Put them on a polygraph and have them relate their mantra that this is totally AOK from a technical safety standpoint for the customer vs. building in a really good fuel system and that polygraph will explode.