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We know the 40 can easily reach 200 mph even with 400hp. We also know it is light at 2400 lbs with has an impressive power to weight ration seeing as most are intent on putting in 450-550 hp. I was wondering what the roll on performance is from 60 mph up to 150 mph and beyond compared to...

Is there a quick change wheel offset set up that allows for rear wheel swaps between street wheel widths and to accommodate 15 inch wide Avons for the track? RCR, SPF or CAV make these?

This forum is an incredible resource for GT40 knowledge. Been here a short time and have enjoyed thus far, the post replies, emails and PMs. Great bunch of enthusiasts here. Thank you to all who contribute. This car in an attention grabber - no doubt about it. I have yet to drive or ride in a...

I will never forget the day I went for a ride in a late model Viper SRT10 (500hp/500tq) and immediately went for a ride in a Dodge Neon SRT4 right after. Dodge had an open house day and we could sample vehicles. Both rides in the Viper and the Neon (I was a passenger) were down the drag...

I have read that this will fit in both the RCR and the SPF. Is it possible to add an 8 stack EFI? Is there a manufacturer that makes one that will fit? Is there enough clearance if an 8 stack was fitted? Would the 8 stack EFi add any power or tq? and... How different would this...

Bloody beautiful mate! Seriously... never liked black wheels and silvery blue paint until now. What are the specs? 4 inch Gulf flare? 15 inch wide wheels? Is this a track car with those tires?

What is the deliver time for a turn key MK1, gulf flares, street cage - a car with available options?

Have read endless posts on hp/tq numbers, what transaxles can take or can't, and how power is too much. Is there a minimum HP/TQ number a 40 should have? I recall reading many years ago reading about an RF40 owner had the audacity to run a 306 with 350 hp. The nerve of that guy... Also...

Greetings to all forum members. First post. I see Superformance has a very "slick" product. The fit and finish are impressive. It is a very sharp looking car. How does RCR compare? I ask because there are endless high res photos of the SPF 40 but I have few high res photos of the RCR40...