Clutchless trannys in SS Modified NHRA

Mike Galuk · 06-01-2010, 10:11 AM

What does NHRA allow in SS Modified, Clutchless 4 speeds or 5 speeds or both. Any help would be appreciated. Thank you, Mike

Mike Galuk
JOE COOL RACING
M/SA-2000

Jeff Lee · 06-01-2010, 10:59 AM

Recent rule change; you can now run clutchless in traditional SS and that trickles to the modified. Traditional SS still has to run the correct number of forward gears as per OEM.

Stephen & Horace Johnson · 06-01-2010, 03:06 PM

Quote:

Originally Posted by Jeff Lee

Recent rule change; you can now run clutchless in traditional SS and that trickles to the modified. Traditional SS still has to run the correct number of forward gears as per OEM.

are you sure about that last sentence??? lol I thought the 55-56's bel air's could run 4speeds now....

LB Racing 3179 · 06-01-2010, 04:08 PM

55's and 56's are allowed to run 4-speeds. The Modified classes are allowed to run 5-speeds.

Robert Simpson · 06-02-2010, 10:49 AM

Quote:

Originally Posted by LB Racing 3179

55's and 56's are allowed to run 4-speeds. The Modified classes are allowed to run 5-speeds.

This is true, in any car that came with a 3sp manual standard, can now have a 4spd. BUT, this only came about AFTER nhra allowed powerglide combo's only, can have a 3spd auto. Man what a mess....I think there is a weight break diff between the Sticks and Autos in SS Modified? That needs to be lifted.

Robert

randy wilson · 06-02-2010, 11:41 AM

I still think modified stock is still limited to 4 gears, i thought that might be lifted beings i think lots of the newer cars come with 5 gears. Correct me if i'm wrong.

Jeff Lee · 06-02-2010, 11:42 AM

Yep, forgot about those 3-speed manual exclusions. So how much did those pick up with the 4-speed conversion? It sounds like those that lost the PG in exchange for a turbo type trans picked up a bunch.

John Mason · 06-02-2010, 01:59 PM

Quote:

Originally Posted by Jeff Lee

Yep, forgot about those 3-speed manual exclusions. So how much did those pick up with the 4-speed conversion? It sounds like those that lost the PG in exchange for a turbo type trans picked up a bunch.

I replaced the ultimate Rossler PG in my GT/IA (327/250/258 - 3300 lbs) car last year with an ultimate Rossler Turbo 350 and picked up .................................................. .. Nothing!
Nothing in 60', 330, 660, 1000 or 1320.
Dave Smith, who built the Pro-trans in my son's GT/BA Camaro, watched several runs at Bakersfield and swore the car LOOKED faster but comparing time slips showed NO difference. He felt perhaps flogging ratios or converters might find something, but it would be insignificant. Now this was just my combo. Your results may vary. The PG is back in mine since the Winters, just in time to trash my last set of 520 heads.
The fun never ends.

Jeff Lee · 06-02-2010, 08:50 PM

I was talking to Kip Martin and he said the SS/LA really made some ground on his SS/L Mustang. Of course that is a class populated by the small V-8's, 283 & 289 and I would think a Turbo would provide more benefit than a larger mid-size V8.
But as you've found out, you've got to open up that wallet to find out! But now you know...

06-01-2010, 10:11 AM	#1
Mike Galuk Member Join Date: Jan 2003 Posts: 328 Likes: 0 Liked 0 Times in 0 Posts	Clutchless trannys in SS Modified NHRA What does NHRA allow in SS Modified, Clutchless 4 speeds or 5 speeds or both. Any help would be appreciated. Thank you, Mike Mike Galuk JOE COOL RACING M/SA-2000 Last edited by Mike Galuk; 06-01-2010 at 10:13 AM. Reason: Added a word

06-01-2010, 10:59 AM	#2
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Clutchless trannys in SS Modified NHRA Recent rule change; you can now run clutchless in traditional SS and that trickles to the modified. Traditional SS still has to run the correct number of forward gears as per OEM. __________________ Jeff Lee 7494 D/S '70 AMX

06-01-2010, 04:08 PM	#4
LB Racing 3179 Junior Member Join Date: Jun 2008 Posts: 48 Likes: 0 Liked 1 Time in 1 Post	Re: Clutchless trannys in SS Modified NHRA 55's and 56's are allowed to run 4-speeds. The Modified classes are allowed to run 5-speeds.

06-02-2010, 11:41 AM	#6
randy wilson Senior Member Join Date: Jan 2007 Location: N/A Posts: 882 Likes: 0 Liked 22 Times in 22 Posts	Re: Clutchless trannys in SS Modified NHRA I still think modified stock is still limited to 4 gears, i thought that might be lifted beings i think lots of the newer cars come with 5 gears. Correct me if i'm wrong. __________________ don,t have one

06-02-2010, 11:42 AM	#7
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Clutchless trannys in SS Modified NHRA Yep, forgot about those 3-speed manual exclusions. So how much did those pick up with the 4-speed conversion? It sounds like those that lost the PG in exchange for a turbo type trans picked up a bunch. __________________ Jeff Lee 7494 D/S '70 AMX

06-02-2010, 08:50 PM	#9
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Clutchless trannys in SS Modified NHRA I was talking to Kip Martin and he said the SS/LA really made some ground on his SS/L Mustang. Of course that is a class populated by the small V-8's, 283 & 289 and I would think a Turbo would provide more benefit than a larger mid-size V8. But as you've found out, you've got to open up that wallet to find out! But now you know... __________________ Jeff Lee 7494 D/S '70 AMX