Scrub

iTrader: (25)

When I go to get my car tuned this weekend my mods will be....
V-mount Intercooler
BNR Stage 3 turbos
HKS twin power ignition
Downpipe
Mid pipe
Cat back
HKS RS intake
1600cc secondary injectors
Supra fuel pump
Efini Y pipe
Magnecore 8mm wires
Apexi PFC at 15 PSI
Greddy profec B boost controller
Stock clutch.

So....Will It hold for my dyno session?
Car has 47,000 miles on it as well as the clutch

BMike

with the rolling start of a dyno and low milage of your car, id say yeah it'll probably hold well enough. I think its life will be pretty short though...

Scrub

iTrader: (25)

Oh yeah I know, next month I am planning on putting an ACT S/S clutch in with an extreme pressure plate....I just can't wait for the breakin period to tune it.....So much gas....running so rich!

Scrub

iTrader: (25)

I am also running non-sequential.

Mahjik

iTrader: (1)

It's not going to explode or anything if that's what you are wondering. You'll probably start to wear it out and you'll eventually start to feel it slipping in the higher gears first.

Are you going to replace your flywheel when you do the clutch?

js236

47,000 Miles on a stock clutch on a Dyno.

Man, all I can say is you better take it easy on the car.

Dyno test is 10 time tougher on a car than the road.

Change the clutch and get a diff at the same time. Don't believe me. Ask the guys at Rotary Performance.

tomsrotary

u have doen alot, and not even a decent clutch setup? why not?

Scrub

iTrader: (25)

I don't plan on replacing my flywheel when I get a clutch......A lot of people say to go lightweight, and a lot of people say not to. So I decided not to. I will probally just get the stock one resurfaced. I am planning on taking it very easy on the clutch, the only hard runs I was gonna put on it untill I get a new one would be on the dyno, which is the only reason I am concerned abotu it holding. If you look at the time frame I did all of this stuff in you will see why I did not do a clutch yet. Also I was not planning on doing the BNR stage 3's and the 1600cc injectors for some time...but that just kind of came up. My guesstimate for HP is around 380 to the wheels at 15 PSI.

matty

clutch will hold...mine did for pretty close what u have.
But on the road, shifting thru gears and it wont hold.
If I were you i would get a 9.5 flywheel.
I just replaced with act s/s and 9.5...great setup. Initially i wasnt too iimpressed with the flywheel...but i am now...first and second gear are a blink of an eye..going to etiown on sunday for some good 1/4 numbers...last time i was there my clutch was slipping.

Scrub

iTrader: (25)

Okay now people are confusing me. But anyway, a source at BNR reccommended not get the lightweight flywheel because it causes more lag. I could be wrong, but I trust this person.

Mahjik

iTrader: (1)

It depends on your driving. If you only drag race and you are dead set on competing, then a heavier flywheel would be a better fit.

If you do AutoX or SCCA type racing, then the lightweight flywheels will be a god-send.

For just everyday driving and the occasional trip to the drag strip, I don't think you'll miss anything from going to the lightweight flywheel. If you like the high rpms and fast revving, the lightweight wheel is definitely for you. Hope that helps!

matty

causes lag...i would think the opposite.

SPOautos

It causes your rpms to drop off a lot faster when you push in the clutch between shifts which throws you farther out of your powerband when you replant your foot in the next gear. Which yea, if bad enough means you might need to rebuild your boost (or at least some of it) in the next gear

At 15psi it might hold enought to make a few run on the dyno but I wouldnt be suprised if it starts to slip around 4500rpms. I'd be VERY careful cause tuning needs to be done slow and you dont want to slip the clutch and run the rpms up real fast into an area that hasnt been tuned on and could possibally be lean.

STEPHEN

matty

i dont really agree with that. Damn, how slow do you shift? The only time the quick deceleration becomes an issue is when you are just cruising around real slow and shifting relaxed. When racing, you are generally shifting as fast as posible. My car ends up at the same rpm when shifting during racing as before and after the flywheel. I also havent experienced any type of lag due to shifting..unless of coarse i am puting around.

I guess its ok to disagree...besides all cars are diferent.

SPOautos

Well, they also have different weight flywheels....how light is yours. That can make a big difference, they have one that doesnt really change much then there is the REALLY lightweight one thats like 9lbs or something like that.

If its lighter its going to drop faster, it might be more or less on various cars and it might be more or less of a problem depending on what kind of turbos you run.

STEPHEN

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iTrader: (25)

Hmmmm, maybe I will do a lightweight piece....Now money is the limiting factor. The reason I don't want a 6 puck is because of the force you have to put on the damn pedal. Bryan at BNR said he can get me a clutch with sprung disks I think he said, and it feels just like stock. Maybe I'll do that then.

Edit: 6 puck clutch

matty

i have the 9.5. like i said i havent noticed rpm dropping out of power band under racing conditions...has anyone else?

I understande what u are saying spo...but when it matters (racing or shifting fast), the quickier rpm drop isnt an issue for me. When cruisin..yeah it get annoying sometimes.

matty

the SR internet special is sweet for our setups.
The act S/S is just like stock. The first time i got in my car i did stall it....but after 5 minutes it felt like stock...and grabs like a **** (for my power)..No slippage. I get caught in traffic sometime or simply enjoy very easy cruising...the clutch feels stock.

The 9.5 flywheel makes revving smoother and faster....cruising around at 4 rpms feels so comfortable...the car is peepier in low gears. I cant believe how fast 1st and 2 nd gear is. Its almost silly.
As far as quickier deceleration..yeah thats true...but shift fast and you wont have that problem. This set up is almost a no brainer for our setups.