Mustang Front End

Freddie · 07-08-2007, 08:24 PM

I have a Mustang we run with the NMRA series.. and would love to run SS..

everything in the car is ok by the rule book.. the only question is the FrontSuspension...

We use a QA1 tubular front end with the QA1 coil over struts... is this legal in NHRA SS racing?

its bad enough to run SS I have to build a new Engine Combo ( no NOS ), and use a Frod Tranny ( No Glide)..

We eant to run in one of the ModifiedModified Stock classes like SS/CM or maybe SS/CS ..

Rule book is not very clear on this.. just says must utilize stock front suspension or NHRA Accepted front suspension...Yet the FWD conversions can use whatever they want?

Bill Harris · 07-08-2007, 10:58 PM

You can not run the aftermarket crossmember. You can hack and whack the stock crossmember to your hearts content, but you can't use a tubular K-frame.

If you want to run SS/CS or SS/CM, you can run a 'glide. The trans does not have to be a FoMoCo. In the regular SS or GT classes it does have to be the same mfg as the car, but not in "modified" or "modified stock".

FWD conversions are ridiculously liberal in their rules. RWD cars have a lot more restrictions, even though it doesn't make a damn bit of sense.

What engine combo are you looking at for CS?

Freddie · 07-09-2007, 07:56 AM

I have a 311 that we tested to run NMRA Pure Street with we got a best of 10.35 out of it.. the top of that class is running 10.teens.. and we were testing with a C-4 trans, which we cant run in that class..

the 311 had some harsh rules on it also.. Performer RPM intake, .550 max cam lift..I figure with a good intake and cam.. I can get this thing in the 9's..

Bill Harris · 07-09-2007, 12:06 PM

Depending on the weight you were running, a cam and intake should help quite a bit. Your minimum race weight will be 3102 lbs in SS/CS with an automatic and that 311. The index for SS/CS is 10.65 so high 9's would to qualify you in the middle of the pack at most events.

You need to make sure the heads are NHRA accepted. Are you using N351s?

Freddie · 07-09-2007, 03:45 PM

we actually did that with a set of well prepped DOOE heads, that were fitted with 1.94/1.55 valves.. I think if I were to do it again I would try the N352's

Grosspeed · 10-14-2007, 10:14 PM

I was thinking about doing this (SS/CS) at one time as well. N351 have larger ports, Vic Jr. intake and small solid roller. Good luck hope you have a full cage.

07-08-2007, 08:24 PM	#1
Freddie Member Join Date: Jul 2005 Location: Tampa Fla / Anderson SC Posts: 334 Likes: 12 Liked 3 Times in 2 Posts	Mustang Front End I have a Mustang we run with the NMRA series.. and would love to run SS.. everything in the car is ok by the rule book.. the only question is the FrontSuspension... We use a QA1 tubular front end with the QA1 coil over struts... is this legal in NHRA SS racing? its bad enough to run SS I have to build a new Engine Combo ( no NOS ), and use a Frod Tranny ( No Glide).. We eant to run in one of the ModifiedModified Stock classes like SS/CM or maybe SS/CS .. Rule book is not very clear on this.. just says must utilize stock front suspension or NHRA Accepted front suspension...Yet the FWD conversions can use whatever they want?

07-08-2007, 10:58 PM	#2
Bill Harris Member Join Date: Mar 2002 Location: Ooltewah, TN Posts: 421 Likes: 13 Liked 26 Times in 13 Posts	Re: Mustang Front End You can not run the aftermarket crossmember. You can hack and whack the stock crossmember to your hearts content, but you can't use a tubular K-frame. If you want to run SS/CS or SS/CM, you can run a 'glide. The trans does not have to be a FoMoCo. In the regular SS or GT classes it does have to be the same mfg as the car, but not in "modified" or "modified stock". FWD conversions are ridiculously liberal in their rules. RWD cars have a lot more restrictions, even though it doesn't make a damn bit of sense. What engine combo are you looking at for CS?

07-09-2007, 07:56 AM	#3
Freddie Member Join Date: Jul 2005 Location: Tampa Fla / Anderson SC Posts: 334 Likes: 12 Liked 3 Times in 2 Posts	Re: Mustang Front End I have a 311 that we tested to run NMRA Pure Street with we got a best of 10.35 out of it.. the top of that class is running 10.teens.. and we were testing with a C-4 trans, which we cant run in that class.. the 311 had some harsh rules on it also.. Performer RPM intake, .550 max cam lift..I figure with a good intake and cam.. I can get this thing in the 9's..

07-09-2007, 12:06 PM	#4
Bill Harris Member Join Date: Mar 2002 Location: Ooltewah, TN Posts: 421 Likes: 13 Liked 26 Times in 13 Posts	Re: Mustang Front End Depending on the weight you were running, a cam and intake should help quite a bit. Your minimum race weight will be 3102 lbs in SS/CS with an automatic and that 311. The index for SS/CS is 10.65 so high 9's would to qualify you in the middle of the pack at most events. You need to make sure the heads are NHRA accepted. Are you using N351s?

07-09-2007, 03:45 PM	#5
Freddie Member Join Date: Jul 2005 Location: Tampa Fla / Anderson SC Posts: 334 Likes: 12 Liked 3 Times in 2 Posts	Re: Mustang Front End we actually did that with a set of well prepped DOOE heads, that were fitted with 1.94/1.55 valves.. I think if I were to do it again I would try the N352's

10-14-2007, 10:14 PM	#6
Grosspeed Junior Member Join Date: Mar 2004 Location: Maryland Posts: 5 Likes: 0 Liked 0 Times in 0 Posts	Re: Mustang Front End I was thinking about doing this (SS/CS) at one time as well. N351 have larger ports, Vic Jr. intake and small solid roller. Good luck hope you have a full cage. __________________ RAM Racing Purnell Auto Body AMI S10