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You can certainly use a single disc clutch. But I like the dual disc clutch because in my experience a single disc that can hold high HP/torque requires significant spring pressure, equaling a heavy clutch pedal. The dual disc clutch on my GT40 (and the dual disc on my Pantera especially) makes...

My SPF GT40 mk 1 is similar to what you are considering, and I have a couple of suggestions/opinions which are based on my experience gained in ~5,000 miles of street use. I ordered/built my car with RHD, a 438" Windsor making 630hp, an RBT GT40 specific ZF trans w right hand rod shift, and...

Wow! What a beautiful testament to your talent. And to your work ethic. Jack

PM sent. Jack

Hi Jeff, Alan Petersen (now of Pathfinder Motorsports) had a beautiful set of SS megaphones built for my SPF GT40 Mk1. The exits are of significantly larger diameter than my SPF megaphones, and in my opinion they look a lot better. As in more brutish and powerful looking. The Pathfinder...

I have ordered it from Gulf Fabrics in Tampa. Gulf Fabrics Home Page Jack

Hi Jack. Like you, I'd love to have one of these. Had an on track ride in a McLaren MP4-12c and was amazed by the eerily solid feel of the carbon mono. Here's hoping the new GT's price is a relative bargain like the '05-'06 GT was. Jack

McLaren M12 GT on Track at Goodwood!!! - YouTube Jack

Re: SPF GT40 MKI P2164 for sale Hey Jack, I enjoyed meeting you & friends at the GT40 Reunion at Elkhart Lake several years ago. I was very impressed with your SPF GT40. One of my friends has a 550 Maranello and loves it. Very comfortable, and I love the V12. Hard to beat for the price. Good...

+1 on the right hand sill shift! Jack

Yes, Jeffrey, that is my red Mk1 on the SPF website. I've sent you a pm. You will love your SPF GT40. I drive mine just about every day that it is not raining. Jack

I ordered my red widebody SPF Mk1 with RHD, RH sill shift and love it. Regarding shift precision and feel, NO center shift arrangement compares. As for the reality of RHD in a GT40, driver and passenger seats are side by side in the center of the car, and just a few lateral inches separates...

I believe this one has been built up from spares. Jack

If you live in Alpine, no kidding about the "West Texas" description! I grew up in Lubbock, BTW. Jack

Jac Mac, Thank you for sharing your hard earned transaxle knowledge. I always learn when I read your posts. Jack

My wide body SPF is 76" wide across rear flares, and I run Avons on 15" x 13" rears for the track and Michelins on 17" x 13" for street. The Avons really do pick up and throw a lot of rocks, comparatively speaking. I examined #1075 at Daytona back in 1990(?), and it had the widest rear flares...

At least in the southeast US, there has been a decline in the quality of the "93 octane" premium pump gas available here. A builder of turbo/supercharged engines told me they have seen their pump gas turbo V8 Ford engines max hp decrease roughly 100 hp due to the fuel octane situation(~700 to...

What about the fast left hander after international horseshoe? Flat out in 3rd, about 130mph in my car. Everytime I go through there it's a thrill. I can't wait to see what the new track surface is like.

Jim, I spoke with Oliver Ring (of RBT) at the PRI show a few weeks back and asked him about the differences between the Pantera ZF and the RBT/M1 ZF transaxles. Among other things, the RBT/M1 external transaxle case castings were redesigned and strengthened. You can compare the two castings...

Thank you for posting the photos of the V12 Mercedes C291! It is my absolute favorite of all the GTP/Group C era cars. I assume it is a Mercedes commercial you are working on; any idea when we might see it? Jack