IMCA vs UMP Style chassis?

R

redtight

New Member
What is the differance in IMCA vs UMP Style chassis? i have never seen anything stating UMP style on any of the modified chassis builders web sites only "IMCA Style" do you have to request a UMP style etc just wondering and who would you go to for a UMP style mod? Is there a chassis web site that states UMP style?
 
The only difference in the two chassis is the size of the roll cage. An IMCA car has an 1 3/4 or 1 5/8 inch cage i dont remember which to comply with their rules as to where the UMP only has to have an 1 1/2 inch cage but you can run an IMCA chassis with UMP but not vise versa
 
All impressive race cars are built with 1 3/4 or 1 5/8 unless driver request different. Majority of his cars are ump, mine is 1 5/8. We run at peveley i-55. Thanks
 
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