This is the Fidanza 8lb flywheel. It was $369 from Ptuning.com.

http://www.imagestation.com/picture/sraid23/pbf9f943632d1d32441e02abd8c7e03b9/fda1098e.jpg

Reverse side:
http://www.imagestation.com/picture/sraid23/pf1d8e2c6ad30c5672bceea8847fcb8b9/fda1098d.jpg

http://www.imagestation.com/picture/sraid23/p623d7e2e4bb6f72516ad5c108b43474d/fda1098c.jpg


Almost 8 pounds, or the scale may be a little off :)

http://www.imagestation.com/picture/sraid23/p56d932a0912e92e809a28fc493e2cadf/fda108c7.jpg

http://www.imagestation.com/picture/sraid23/p3fb96770624fc7c9722b5e70a2a57cef/fda108c5.jpg

ACT extreme pressure plate with street disc, PP was slighty used but the disc is brand new, bought from T25NX2K in the For sale forum:

http://www.imagestation.com/picture/sraid23/pf4beed3c069ca2ed535cdd9b59fcd833/fda10884.jpg


http://www.imagestation.com/picture/sraid23/p321500c85b21c1fb1f1021681ebd44cd/fda10885.jpg


All this stuff goes in next week. Step 1 towards having BOOST. I just bought the flywheel for the hell of it. When NX2kRidah sends me the $600 he basically stole from me, I can buy more goodies. :)

Nice. I was planning on getting that flywheel when JGY told me that for $90 he could get a stock one down pretty damn close to what the Fidanza weighs. Like 10 lbs. I think, it's been awhile since I talked to him about that. That extra $279 being freed up might allow you to do some other things that will yield you more HP than having an 8lb. flywheel versus a 10lb. one. Something to consider, if returning the Fidanza is a possibility, or selling it to someone else can be done with minimal, if any, loss.

I believe the JGY flywheel was 15lbs.

Damn, you're right. I just checked my spreadsheet where I store all my DET swap info that I pry out of people, and I have it down as 14 lbs. So you're a lot closer than my 10 was. So you'd have to do a cost effective comparison to see what the money saved could do elsewhere, where it might net more power than the 6 pounds that the fidanza shaves off the turning mass of the crank. And I wonder how much more torque you'd have with a 8lb versus a 14lb? I don't know if it would effect HP in the higher rpm range, but the torque could be substantial enough to warrant the extra money spent.

Jason's lightened flywheels are 15lbs, and the last I heard, his lathe was broken, although that was a while ago.

C (:-)
My Zex/Jun Ultra Light arrived yesterday :)

I made some 15's, a 14, and a 10pound one.

It didn't break our lathe, but we don't want to do anymore.

Here is the problem:

The material in the Nissan flywheels is of low quality. It would be dense and coarse, and then not so dense and fine. As the lathe spun around hititng these different materials, it would keep breaking/jamming our cutting tools. It was very weird. That last one we got so light surprised us. We took about the same amount of material off of the unit, but it weighed less. We balanced them too.

It just isn't worth it for us right now. If the lathe was bigger so that it could better handle the momentum change from the density, it might be different.

I sent some out to a local shop. They were idiots, or either honda lovers. They got one to 7lbs and it was so thin, you could almost flex it............."uh.......how the hell can you use that on a car" what a bunch of morons

Just buy a fuel rail and be happy. :p
http://www.jgycustoms.com/fuelrails.htm

Originally posted by Jason Garrett Young
I made some 15's, a 14, and a 10pound one.

It didn't break our lathe, but we don't want to do anymore.

Here is the problem:

The material in the Nissan flywheels is of low quality. It would be dense and coarse, and then not so dense and fine. As the lathe spun around hititng these different materials, it would keep breaking/jamming our cutting tools. It was very weird. That last one we got so light surprised us. We took about the same amount of material off of the unit, but it weighed less. We balanced them too.

It just isn't worth it for us right now. If the lathe was bigger so that it could better handle the momentum change from the density, it might be different.

I sent some out to a local shop. They were idiots, or either honda lovers. They got one to 7lbs and it was so thin, you could almost flex it............."uh.......how the hell can you use that on a car" what a bunch of morons

Just buy a fuel rail and be happy. :p
http://www.jgycustoms.com/fuelrails.htm

dude...thanks for the info. you just helped me alot out there :)

Right. I figure if I'm getting a lightweight flywheel I might as well get the 8 or 9lb one rather than a lightened stock flywheel. I'd assume regarding that every pound counts.

I lightened my stock flywheel like 3 or 4 pounds less than stock and sincerly i didnt notice any big change or any at all just very very little.


if any of you guys wants to get it id go with a fidanza 8lbs FW

i guess that should get noticed hehe.

:)

well thats just my side for anyone who wanted to know and was planning on lightening the OEM one.

Jordan,

Do not under any circumstance install the ACT Xtreme PP. You will regret it. The plate is so strong that you will end up breaking your tranny.

I broke TWO trannys with this damn plate. I finally took it off when I installed my my third tranny. I installed a JWT PP and Sentra 2000 SE clutch.

Our trannies are VERY weak and the Xtreme plate has so much clamping force that it transfers a lot of torque to the gears. Eventually our brittle third gears will break.

Sell that PP and get an ACT HD or the JWT PP. I have my Xtreme sitting in my study. I will not sell it to my worst enemy.

The lighter the flywheel, the more erratic your idle will be. When you slow down from speed you will notice it more with the lightest flywheel. your idle will dip and the car feels like it is going to stall.

I installed an UL Jun on my race car and the idle was very funky. But it is a race car and it does not matter. If I wanted to install a flywheel for my street car, I would not go lighter than 11-12 lbs.

Oh no, I knew this was coming! :(

I've heard bad and good things about the extreme PP.
I've had the JWT PP in my 91 SE-R and I wasn't too impressed with it. It was a good quality piece, but I couldn't tell much of a difference over the stock setup.

I was going to run the street clutch disc, I was thinking that would help to deter the effects of the pressure plate.

:confused:

Originally posted by Storm88000
Oh no, I knew this was coming! :(

I've heard bad and good things about the extreme PP.
I've had the JWT PP in my 91 SE-R and I wasn't too impressed with it. It was a good quality piece, but I couldn't tell much of a difference over the stock setup.

I was going to run the street clutch disc, I was thinking that would help to deter the effects of the pressure plate.
:confused:
Just sell that bitch and get a softer PP. That PP wasted almost 2K of my hard earned dollars. Learn from my mistake and run far away from that PP. If our trannies were like Honda trannies, then run it. But our trannies suck big hairy balls. Whoever designed them should be lined up and shot with Terrin's extra strong rifle :)

Originally posted by nj1266

Just sell that bitch and get a softer PP. That PP wasted almost 2K of my hard earned dollars. Learn from my mistake and run far away from that PP. If our trannies were like Honda trannies, then run it. But our trannies suck big hairy balls. Whoever designed them should be lined up and shot with Terrin's extra strong rifle :)


:D That goes also for whoever designed the 98 200sx taillights :)

BTW, which clutch disc were you running in your car with the ACT Xtreme? 6 puck?

so whats the best PP for an N/A setup? hell, whats the best clutch setup for 160hp? saw the new JWT clutch setup in the NPM...my god that was beautiful!

Originally posted by pearl2000
so whats the best PP for an N/A setup? hell, whats the best clutch setup for 160hp? saw the new JWT clutch setup in the NPM...my god that was beautiful!


I would go with Naji's setup, the JWT PP (circa $220) and the 2001 B15 clutch disc. Plenty enough for bolt-ons.

I just got the ACT to keep my options open for boost at a later date.

Originally posted by Storm88000



:D That goes also for whoever designed the 98 200sx taillights :)

BTW, which clutch disc were you running in your car with the ACT Xtreme? 6 puck?
Those taillights where flashing in the face of a certain Classic two weekends ago :D

I was running the same set-up that you want to run. I had the Xtreme with the ACT street clutch. The street clutch did not soften the Xtreme as you hope it will.

This is good stuff to know. Thanks Naji! What clutch and flywheel would you run on a DET, assuming that with future mods a T28 might replace the T25 and hp wouldn't top whatever is to be expected from an Avenir with a T28, appropriate MAF, injectors, cams. (300 at most?) It would be a daily driven street car that saw occasional track use.

Originally posted by nj1266

Those taillights where flashing in the face of a certain Classic two weekends ago :D

I was running the same set-up that you want to run. I had the Xtreme with the ACT street clutch. The street clutch did not soften the Xtreme as you hope it will.


:eek:

I see. Well the only upside is that I rarely race or do any track events, I know you did often when you broke your transmissions.

Originally posted by Toolapcfan
This is good stuff to know. Thanks Naji! What clutch and flywheel would you run on a DET, assuming that with future mods a T28 might replace the T25 and hp wouldn't top whatever is to be expected from an Avenir with a T28, appropriate MAF, injectors, cams. (300 at most?) It would be a daily driven street car that saw occasional track use.
Jay Hassinger was running an ACT HD with a street clutch on his 400 hp turbo SE-R. It held pretty well to all the abuse he gave it and the occasional drag use. I would go with that if I had a turbo. With an NA car, I would stick with the JWT PP and the Sentra 2000-01 SE clutch. The nice thing about this clutch is that it is double sprung (springs inside a spring) and that makes it way more sturdy than earlier Sentra clutchs.