0APS

Hi Guys, Just a quick update on the C5 twin turbo system. Our head tech just dyno tested the twin intercooled twin turbo system with high flow rear mufflers (APS developed rear mufflers which will be released in early 07) and after a little tweaking on the engine tune the stock ZO6 engine produced 640 rwhp and 622 rwtq at just 9 PSI boost on 93 octane fuel. Now I'm not entirely sure how durable the stock ZO6 engine will be at this power/boost level though it certainly shows that there's plenty of power potential in the little 346 cube engine.

Stock Power and Torque vs APS C5 twin turbo Power and Torque.



Power vs boost pressure.

Bill Reid

Great numbers Peter... especially at that low boost. Sure you won't step into the American Truck / SUV market?

Bill

CraZee ZO6

oh my at 9psi those #s are HUGE though.
What TQE! Excellent results!

0APS

Thanks for your input Bill. I'm very impressed with the stock C5 ZO6 engine, certainly capable of some big power and torque.

The US Truck / SUV market will get some APS attention in 07 if all goes to plan.

Peter

CraZee ZO6

your base kit does not include injectors and fuel pump correct?

NassauBlue98

Peter,

Is there any warranty on your turbo kits, specifically on the turbos?

Is there any stipulation on the warranty (i.e. has to be installed by an authorized dealer, etc.)?

Thanks

0APS

Lol, I'm over the moon with the results, the twin turbo C5 is absolutely scary quick on the road, goes to a 170 mph in a heart beat (ran out of road to go faster ) and just keeps pulling all the way to redline, just awesome fun.

Peter

Z_Rocks

Peter, what's the AFR from 4000 RPM up?

LB

The DynoDynamics power output figures read lower than the DynoJet. I have heard upto 15% in some cases. That is impressive !

What size turbo charger does this kit utilize ? How many lb/hr ? I would have guessed a T3/T4 60mm ?

Mopar Jimmy

A BIG CONGRATS, those are HUGE NUMBERS on a stock C5 Z06 at 9 lbs of boost and the TORQUE IS WICKED!! A little 100% methanol/alky will help her live a longer life. GREAT looking Product and BEST OF LUCK!!!!!!!!!!

NICK YOSKIN

WOW...peter that is pretty impressive

i gotta say peter that your offering more then just a well engineered turbo kit.. you have that fuel system and now mufflers!


hehehehe

now get back to work and make something for my new 07 bmw 335i twin turbo!

0APS

That is correct. You need to add your own fuel system and tune. A set of 60 lb injectors and a boost a pump should be good for around 550 whp and cost you around $800.

Peter

0APS

APS warrants the twin turbo system to be free of any manufacturing defect for a 12 month period.

Peter

0APS

I like to see 11.2 AFR at peak torque then sloping up to around 11.6 AFR at peak power.

Peter

0APS

That may well be true. To be frank I don't get all hot and bothered with different power readings from different brands of dynos. What's important to me is the real power/torque gain that you actually measure when you do real before and after dyno test on the same dyno, same car in similar environmental conditions. Bottom line, a load based dyno is simply a tuning tool that allows a competent tuner to achieve the best tuning data (power and torque across the entire rpm range) and that is generally back up with performance at the track. The MPH ar the track never lies.

The liquid cooled TDO6 turbos in the APS C5 twin turbo system are 50 lb per hour units for a total of 100 lbs per hour at around 16-18 PSI.

Peter

0APS

I'll pass those kind words onto the guys in engineering as they are the guys who deserve full credit for the C5 twin turbo development. They have lived, breathed and dreamt of nothing else other then the C5 twin turbo project for ther last 8 months so it's wonderful to see the tech guys/team experience such positive performance results. Just goes to show that when you get a talanted team of engineering guys together who have a real passion for performance that new bench marks can be set and achieved.

No doubt that methanol injection will offer a higher degree of engine safety. I'm sure that many twin turbo Corvette owners will go down that path especially because of the low 91 octane fuel that's sold in many towns across the US. Lucky that we all have the methanol injection option, without it we could all be power limited.

Peter

Vince99FRC

I am sorry to be a little picky Peter, but what you like to see is not answering the question. The question was what's the AFR from 4krpm on up? That means the actual air/fuel ratio from this cars dyno...

Z_Rocks

You're right Vince. Maybe I should have been more clear to Peter that, what was the AFR showing "During" this dyno run?

Thanks!

0APS

No problem. I don't have a graph of the AFR data as we use 8 lambda sensors during tuning development work (one per cylinder). The AFR was running 11.2 - 11.4 AFR at peak torque (4800 rpm) sloping up to 11.6 - 11.8 AFR at peak power (6000 rpm), these AFR numbers are data logged in steady state operating conditions, hope that helps.

Peter

Bill Reid

PLEASE PLEASE PLEASE keep me in the loop Peter... and let me know if I can be of ANY help

Bill