venom ws7

iTrader: (13)

My friend just dynoed his car 99 M6 Z26 Mods:

Engine
Stock 346Ci ,Mahel Forged Pistons -9cc Valve Reliefs, Scat Connecting rods, LS6 Ported Oil pump, Stock 99 LS1 heads, FMScam 232/236 585/600 114LSA
7.400 Pushrods, Dual Springs, Comp R lifters, Timing chain.
Compresstion is around 9:5 I believe.

Induction
D1SC Twin 3.5 Intercoolers 6rip 8psi pulley.

Boltons
Kooks 1 7/8 LT headers, TSP true Duals, BBK 80TB, LS6 Intake,

Transmission/Rear
Stock T56 , S.P.E.C stg 5 Clutch, Fidanza alamunium flywheel, Stock rearend with 3.42 gears.

Fuel
F.A.S.T 60lb Injectors, intank 255lb Fuel pump, Stock fuel rails.
Injectors duty cycle were 56% Tuned on 95octane and a littel rich.

The car made 462rwhp SAE With 3.8PSI ONLY the car didnt show any sign of belt slip and the belt wasnt loose at all.
So I need some help guys the car didnt even see 4Psi.
The owner is shooting for 520-540rwhp with 8Psi is that possible????
he also have Snow performance Meth kit will this be any help????

Pics





Next to TT C6 ZO6 and Procharged Saleen


Vids

http://www.youtube.com/watch?v=HELBl0QVO_U
http://www.youtube.com/watch?v=MtFMLmMitOU

Thanks in advance.

CALL911

iTrader: (17)

I think the power level sounds right for that amount of boost on that motor. Methanol would be a good idea keeping things safe, and I think he should break the 500 RWHP mark by upping the boost to 8 psi.

venom ws7

iTrader: (13)

Thanks man,
the owner is happy with the dyno numbers now he trying to find out the boost problem.

rubbersidedown

what size pulley & RPM? is the bypass fully closed? did you DOUBLE CHECK for leaks from hoses/ intercooler piping??? 520 should be no problem

CALL911

iTrader: (17)

I guess your "help" post was kind of confusing to what you actually needed "help" with. Most likely if he is trying to figure out why he is seeing such low boost numbers, it is because of a vacuum leak. Once you have traced every line and hose and that you are more than cofident there are no leaks, then you can move on to creating more boost. The best way to do this is usually to change the pulleys to accomidate more boost. It also is a good idea to replace the air filter with a much larger one. Also the plastic inlet tube from ATI is very restrictive, I reccomend going with a metal fabbed up inlet tube like I got from a member on another F-body board. Just by changing my air filter and inlet tube I gained 6#'s of boost and more than 100 RWHP!

venom ws7

iTrader: (13)

I dont know what size is the pulley but I'll check.
RPM was between 6400-6600 we will check the hoses and piping tonight to see if there is any leaks.
Thanks.

1st thing I told him is to change his Air filter.

and yes we are changing the plastic inlet this week.

Thanks for the help guys and I'll keep you guys posted.

viper9403

iTrader: (14)

Agree with above post, deff. need to check hoses for leaks or loose clamps.. as well as check for a vacume leak. And check the release valve (bypass/BOV) to make sure its functioning correctly.

Urban Legend

iTrader: (5)

Pulley size might be the reason for the "low boost." He might need an 8 rib kit if he ups the boost to 8 psi.

On the owner shooting for 520-540rwhp? That would be too easy

Blownramair

Dyno the thing w/o an air filter on... See what happens... Where are you reading boost at? I had problems w/ this when i first started w/ Procharger... I put boost guages before the Intercooler(s), after the intercoolers and at the throttle body... I found my leak

EPP

iTrader: (22)

There is no such thing as an 8lb pulley, below is why.

How much boost the blower can produce depends on many variables.
* Cubic inch. The larger the engine the less boost it will make with a blower.
* Headers and exhaust. A better flowing system will produce less boost, requires a smaller pulley to regain the loss in boost. Ultimately though, more power will be gained.
* Camshaft and heads. A camshaft with some overlap will leak out some boost through the valves. Better flowing heads react a lot like a better flowing exhaust system.
* Altitude. Elevation plays a big part in how much boost is produced. Those people living in the higher elevations have to spin the blower harder to see boost.
* Condition of engine. An engine with real good sealing rings will ultimately produce more boost than one with worn rings.
* Rpm. An engine that is spun up higher in the rpm range will normally produce more boost.

Since this is a six rib kit, the ProCharger crank pulley is smaller than the one used on the 8 rib kits. This will mean you cannot compare blower pulley sizes to those used on an eight rib kit. Bob

venom ws7

iTrader: (13)

Thanks man.

Thanks and I;ll keep you guys posted with the new numbers.

Good info thanks man.


Huge thanks you gave me alot of info.
Bob can you PM the price on the 8rip, FMIC, With 13psi shipped to 11413.

And what do you think about the numbers???

Thanks guys.

EPP

iTrader: (22)

8 rib components:

http://www.exoticperformanceplus.com....html?item=716
$539.44
http://www.exoticperformanceplus.com....html?item=455
$454.99
http://www.exoticperformanceplus.com....html?item=458
$120.00

Front mount intercooler:
http://www.exoticperformanceplus.com....html?item=772
$899.99

I recommend this larger air filter as well:
http://www.exoticperformanceplus.com...html?item=1086
$49.99

Shipping to N.Y. $40.00

Total is $2,104.41

Thanks. Bob

venom ws7

iTrader: (13)

Thanks alot Bob.

Posted some pics nad dyno vid above.

EPP

iTrader: (22)

You're welcome! Bob