I've been using SRmotorsports 9.5lb flywheel and the stock twins at 16lbs boost and it was great. I know there's alot of info on this, which i read, just aiming this towards people with 450 hp and up. Now that i have upgraded to a single (R85) and just finished my motor, I can't decide what flywheel to use. I do like drag racing at the strip, but also drive the car around the town. I plan on running 25-27 lbs of boost and have never driven a single turbo 7 before. I know i will have to shift really fast, since it will rev faster with a single, and i heard that drag racing with a light flywheel, that when you shift the rev drop faster than a stock flywheel, but it also revs faster than the stocker. How's the performance drag racing with a light weight flywheel on a high HP rx7. Would you go back to stock or love the light flywheel?

 

If your planning to run 25-27 lbs you better go twin disc. There good on the street and good at higher h/p levels. Do it once do it right That saves money over going cheap more than once!

 

IMHO: the difference between a LWFW and the stocker isn't huge. I've noticed slightly better engine spool-up and faster rev dropping. But nothing that hurt the drivability or dramatically changed trap times.

I wouldn't worry about it and just use the LWFW for the reduction in weight.

 

I was told the ACT street/strip HD clutch can hold 408 lbs of torque, I doubt i'll have that much torque. I just look up the exedy clutch it's $1600. Thanks for the info. I'll go that route when i toast this one.

Thanks Zenofspeed is that with a 450 + car ? I know it's not that much of a difference when my car had the stock turbo at 16lbs of boost, but i know the single turbo will rev much faster, just not sure .

Anybody know what Ernie T uses, i saw his launch and was like WOW,that's what i want my car to do !

 

I belive earnie is using a triple disc. I cut 1.52 60 ft on a rps ceramic with 480 h/p but im on the edge of needing a better clutch.

 

What about flywheel for Ernie and you ^

 

The S/S might be able to hold that much, but for how long? If you're going to be regularly dumping the clutch, I would look for something that's more durable so that you won't have to go back and replace it in a couple of months.

 

quick question, what would be better a prolight or streetlight flywheel? any noticable differences?

 

Ernie's would be part of the clutch set up! Im running stock fly wheel.

 

I'd also like to know i'm considering buying one to go along with my streetport motor?
Anyone?

 

+1 ^ im gettin all my things ready for a rebuild and would like to know which to get.. i called pettit before to ask them a couple questions but about their rebuilds and he was saying the lighter the better when i asked about the flywheel.. doesnt really answer my question tho

 

The ACT street/strip has a basically stock clutch disc, and will not hold a single turbo running 15 psi, let alone 25+.

I'd go w/the lightest flywheel you can for a street car, in this case the prolite.

 

http://turboimport.com/catalog/rx7.htm

^^^^ Good Friends past this on to me. Best deal I've seen on the ACT Flywheel.

My Streetlite will arrive tomorrow.

NOTE: If you are going to order from them, be ready to wait a little longer for it. I placed my order on 2/27/08 and it's arriving 3/14/08.

D-

 

Thank you for the link kind Sir.
I am looking for a clutch and lightweight Flywheel and those are the best prices i've
yet to see on ACT clutch's.Guess I know where i'll be ordering my new clutch and Flywheel from.

 

i believe horsepowerfreaks will beat any advertised act parts.

 

horspowerfreaks?? never heard of them... on the turboimport site which one is the ACT S/S?

rich you say get the prolight which i am thinking about but i am on ACT's website and it says

Prolite

- Preferred for Road Racing or minimum inertia
- Quick throttle response and acceleration
- Lightest with lowest inertia
- Reduced drivability


Streetlite

- Preferred for Street and Drag Racing
- Improved throttle response and acceleration
- Considerably lighter than stock
- Most durable flywheel available
- Good drivability


why would it reduce drivability?

 

bump, anyone have the answer to this?

 

I've got the prolite combined with an act/street strip and it drives like stock imho.