IHRA classification guide

[Mark Yacavone]

Thanks, Mike
So, is there a weight penalty for a stick shift?

[Robert Swartz]

Originally Posted by Mark Yacavone

Thanks, Mike
So, is there a weight penalty for a stick shift?

Mark,

Straight from the rule book.

Pure Stock
These classes are for street type cars which have minor modifications to the engine,
chassis, transmission, carburetor, etc., unless it is specifically stated that a modification
or optional equipment is permitted. No turbo or super charged cars allowed. A through I
are the only available classes, with the same class breaks as stock, "Class weight breaks
and indexes are for both stick and automatic".
Numbers must be at least 4” high on all 4 windows.
CLASS WEIGHT BREAKS FOR STICK AND AUTOMATIC:
A/PS ....................8.00 to 8.99
B/PS ....................9.00 to 9.99
C/PS ....................10.00 to 10.99
D/PS ...................11.00 to 11.99
E/PS ....................12.00 to 12.99
F/PS.....................13.00 to 13.99
G/PS ....................14.00 to 14.99
H/PS ...................15.00 to 15.99
I/PS......................16.00 to 16.99

[danny waters sr]

Battery up front, Water pump and alternator must be driven by crankshaft. Headers permitted ,but must run mufflers that do not go straight threw. cannot uncap headers,Stock type fuel pump must be used.one electric pump allowed when used through stock mechanical pump.you may remove other drive belts such as power steering ,a/c ,ect............. and there is more rules listed on page 63 of the 2010 IHRA rule book.Should be able to go on line and find these rules.

[Lyn Smith]

no hoosier radials allowed because they say 30" on the side wall desigination!! tires must say 29.5 or smaller.

Great class, IHRA Pure Stock engine rules are pretty much the same as NHRA stock engine rules were in the 80's before things started to become "unstock".

[danny waters sr]

Be careful on your cam and springs too.

[greg fulk]

M/T makes a 29.5x9 that is legal! Truman got M/T to make them

[jmcarter]

Does the 80 Volare with 360 have the same 185/289 rating as does NHRA? Would weigh 3345 for G and 3490 for H in NHRA.

May be a question for Danny Waters but anyone who knows the answer I'd appreciate it.

[danny waters sr]

Originally Posted by jmcarter

Does the 80 Volare with 360 have the same 185/289 rating as does NHRA? Would weigh 3345 for G and 3490 for H in NHRA.

May be a question for Danny Waters but anyone who knows the answer I'd appreciate it.

IHRA hp is 185/285.stock class weight in g is=3305 & h is3447. Hope this helps.

[jmcarter]

Thanks Danny...may be seeing how much changes I've made will pick me up before going to Indy and Union race looks like it may work out for me.