Superformance MKII, Riverside Racer 289 FIA vintage race car

[MOTORHEAD]

Jim: I haven't been following your thread, just taking a peek now and then, when it dawned on me that you were going Vintage racing with a REPLICA ! I have been toying with the idea of selling my Kirkham as a vintage racer, but didn't know which racing assoc allowed replicas. Had been trying to contact Ric Parent @ svra, and tried to make contact with him at Sebring last sat, but he wasn't there.(home with the flu I was told)
I just now did a quick review of your thread, and lo and behold, I see that SVRA does allow some replicas. Could you tell me who at SVRA was/is your contact ?
Looks like your car will be something special, good luck with it !

Ted

[1795]

Ted,

Ross Henry, Dennis Olthoff and John Cropper did the majority of the discussion with Rick Parent, and probably others at SVRA to get the Superformance FIA/Comp models approved for vintage racing. I have been working directly with Rick Parent and have been keeping an ongoing dialogue with him as the build is progressing regarding parts that I have purchased.

Basically to see what you might require to compete in SVRA with a replica, go to the SVRA website and look up the car that you are replicating (right now for Superformance the only cars approved are the 289's) and look at the make and model specification sheet under the car rules section. It will describe how your car has to be set up. The frame, engine, transmission, suspension, brakes and body have to meet the standards set in that document.

SVRA, and most vintage groups, do not allow stroking of engines, aluminum heads, or transmissions that are not similar to the original transmission. they do allow after market blocks and heads if they are of the same material, stroke and bore (with allowed over bore of 0.047) as original, iron for cobras.

You would have to also meet the requirements for general safety concerns regarding fuel cell, harnesses, roll cage, etc.

It would probably involve a lot of alteration to your existing car. PM me with your phone number if you want to talk more.

Jim

[1795]

Attached are some new photos showing the front transverse leaf spring suspension. Real nice looking work.



Jim

[peterpjb]

looks great, but still some work for you...

[1795]

Originally Posted by peterpjb

looks great, but still some work for you...

Some work.

That would be an understatement. It will be a busy month or so getting the car easy for the track. Will post photos of the disassembly and re-assembly as it progresses. Just collecting parts and planning at this point.

[Morris]

Originally Posted by 1795

Attached are some new photos showing the front transverse leaf spring suspension. Real nice looking work.



Jim

Jim

I sent Ross a note regarding the suspension....before you do anything....you must square up the suspension to the chassis....

Then it needs to be bump steered.....both front and rear....that has been a real issue with these cars since I got involved with them......it will make a huge difference on a race track.....driving on the street verses a track is way different....and the loads You put on the suspension will cause it to do strange things......they can drive ok on the street.....but the track will show a different side to the suspension.......

Just a thought....

Morris

[1795]

Morris,

Thanks. Looking forward to seeing that information from Ross. I figured that there will be some suspension adjustments required for the track. Plan on doing some corner weights and figuring out best placement for the battery, fire system and fuel cell to try to keep things fairly balanced.

Keep the advice flowing, it keeps me busy and thinking whir I await arrival of the car.

Jim

[peterpjb]

Originally Posted by MOTORHEAD

Jim: I haven't been following your thread, just taking a peek now and then, when it dawned on me that you were going Vintage racing with a REPLICA ! I have been toying with the idea of selling my Kirkham as a vintage racer, but didn't know which racing assoc allowed replicas. Had been trying to contact Ric Parent @ svra, and tried to make contact with him at Sebring last sat, but he wasn't there.(home with the flu I was told)
I just now did a quick review of your thread, and lo and behold, I see that SVRA does allow some replicas. Could you tell me who at SVRA was/is your contact ?
Looks like your car will be something special, good luck with it !

Ted

this is what the FIA says, regarding their HTP (historical technical passport),
the FIA HTP might be the most valuable paper for historic racing:

"The HTP is essentially a sporting document and says nothing about the authenticity, provenance, origins, etc, of a car. It is concerned only that the car’s specification is that of the particular model it purports to be, the whole purpose of the HTP is to try to ensure that cars accord with the authentic specification and can therefore compete with one another fairly.
This HTP must refer to a historic period in the life of the car/model considered (a “snapshot”). This is not necessarily the point of original manufacture. Period Specification is defined as corresponding to the configuration of the model, proven to the satisfaction of the FIA to have existed in the period in which it is classified (Art. 3.3.1 of FIA Appendix K).
Whether the car is wholly original, partly original, assembled wholly or partly out of period components or a copy or replica built recently is not relevant to the issuing of an HTP. The prime criteria to be granted an HTP is that the car represents a provable specification and type that competed internationally in period."

[Mark IV]

The FIA "HTP" is important for Europe and some vintage organizations but HSR and SVRA make their own regulations and recognizing the dwindling grids have chosen to allow proper replicas to compete so long as they are done "period correct" (to their definition of "correct" as 65-66 GT350 are so much faster than in the day) and allowing composite vs. alloy body construction.

We have some Cobra owners who are interested in replicating their original CSX/COX/COB cars to race without some of the risk.