Drag Racing Discussions > Front Engine Dragsters

Jr Fuel tire diameter

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Scottmech:
Anyone know what diameter tire was typically used on mid to late 60's JF cars? Thanks. 

JrFuel Hayden:
Scott are you building a 60's type nitro JrFueler ? or just want to know details.
My 1963-69 nitro SBC JF car was about 30" with 9" wide M&H
Have Fun,
Jon, 805-444-4489, cell

Scottmech:
Just finished a mid 60's Woody JF.  Has been modified for a glide and updated for 7.5 specs.  Getting ready to test soon. 

I had mocked it up with 33's for several reasons, but to me they just look too big. It came to me with 30x10.5 which just seem more proportional.  Gonna go back to them.

JrFuel Hayden:
a 60's Woody car has the motor further back towards the rear end than current built cars, because in the 60's they had no VHT, and no slipper clutches, just rev-it-up pop the clutch and smoke the tires to keep the RPM up to where it was making good power. So depending on your HP you may need a bigger/better tire, but maybe not a 33x12 tire unless you are making over 1000 hp.
Feel free to call me with any questions.
Jon, 805-444-4489

retroboy:
Howdy I have a 155" early 1970's car with updates and 31x13 M/T which are too big visually for it.

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