Real Fiero Tech

Hey guys I'm looking for some bodywork for an IMSA fiero. Let me know!!

Thanks

From that picture I am guessing a stock F23 HTOB will work. The 5.5 housing is so small in diameter that the HTOB contacted the housing.

I never did weigh my stuff. Then again I am sure it's fairly close to what Tilton publishes for the 5.5 rally clutch. I posted a link to this thread over on Old Europe. Needless to say I didn't get much interest. Although i did find about five or six other posts on how there are no quality clutches ...

Ok well finally got a chance to actually get the new Tilton 5/8" MC installed after getting it from Jegs on 2 month Backorder! Took a full bottle of fluid to bleed all the air but the clutch disenages perfectly! The engine isn't running yet but it should work great, and no puddles under the car...

Sure will, although I'm heading out on vacation tomorrow so it may be a bit. I am going to try and get the one mount done tonight. For some reason the engine mount I was using for the front of the engine on my 3.4 DOHC mockup engine didn't quite fit the LZ4 so I had to redo that extensively. The blo...

Well it FITS!!! The transmission and engine are all assembled and I'm currently fabbing up the mounts for the F23 in the cradle. Once done I should be able to bleed the clutch hydraulics, adjust the pedal stop and see how much pedal force is required and if I have the engagement stack height properl...

Will, what clearance issues were you having with the 7.25" setup? With this all installed the HTOB to clutch clearance is .208 or right in the middle of the window of .170 to .230 that tilton recomends. Or are you speaking of radial clearance to some part of the 282 interfering with the larger ...

More progress today. Got the HTOB adapter plate from the machine shop, some M6 Flat Head Socket Screws, and ordered the 25mm shaft seal and face o-ring from Motion Industries. Here are some pictures with the HTOB plate and HTOB in place. I still need to drill and tap for the 1/4-20 shoulder screw th...

Look on Ebay too. The occasionally pop up. Or just wait till a bunch of folks buy them, realize it's not a bolt in swap and buy it from them!

So Will, are you saying since I have a 6# flywheel on my tilton setup I won't blow a transmission?

If you need any contacts to adapt stuff to your Northstar let me know.

Since this whole setup isn't going in your average Fiero I thought I'd post a picture of what my wife calls "The White Beast." IMG_2410.jpg It started out life as a basic Kelmark GT on a VW pan. I have since built a tube frame chassis using an 88' Fiero rear cradle, front cross member, rac...

Discs and HTOB came in late last week. Here are some more teaser pictures. The custom base for the F23 is being machined at a local shop from 6061-T651. I now need to place another $1K order from Summit/Jegs etc for all the cooling, fuel system plumbing and the rest of the clutch lines. I am hoping ...

And another with the clutch housing sitting there.

Well I finally got the new flywheel bolts from Fastenal today. The flywheel is here and the new HTOB is on order from Tilton. The discs should also be here later this week. I promised pictures once I got the flywheel and clutch attached to the engine so here they are.

Another quick update. The flywheel has arrived! It's pretty cool just seeing how small this thing really is. The flyhweel bolts are on order with Fastenal and will be here by Friday but I'll be out of town till Monday. Once I get the flywheel/flexplate stack attached to the engine I'll post up some ...

First of all Will, if you feel I've hijacked your thread I'll start a new one. I just thought that since so few of us are attempting this installation that it might be better to make this a more encompassing thread. That said I'll move on. I finished up designing the piston for the F23 HTOB tonight....

I got the clutch in today and quickly realized that the stock HTOB that comes with the F23 Transmission will not work with the 5.5" Tilton Clutch. It's diameter is too large. Furthermore, if you don't use the proper 38mm (1.5") contact area then the release loads go up, and with a 750lb re...

Another Update: I picked up my 20K mile LZ4 this past weekend along with the automatic flexplate. I will be sending the flexplate to QM to fit a custom button flywheel. They quoted me $370 for the flywheel. Just a few dollars more than a conventionally available aluminum unit. Tilton was not interes...

Just got off the phone with Kirk at Tilton. I aquired a 5.5" Tilton Clutch 2 disc (550 lb-ft holding torque), P/N 67-302HG. This is a high ratio unit so it won't have much pedal travel as the ultra-high. Part Number for the discs is 64140-7-AA-12. They were not interested in drilling a SBC butt...

I just got off the phone with Jeff at QM. If you send him a flexplate he will drill a blank SBC 5.5 or 7.25 button for your application to stack on top of the flexplate. The SBC button is .750 tall and the pro series 5.5 clutch (2 disc) has a setup height of 1.5" for a total of 2.250" I wi...