1985 mustang GT

tjg4036 · 09-30-2018, 05:06 PM

Long time on no post I’m a happy new owner of a 1985 mustang GT this car is mostly stock with a none original 302 30 over 8.8 posi 3.73 aod trans interior intact exterior needs a paint job very solid body surface rust minor dents. I have an interest in stock/super stock racing in near future I’m going to drive it as is with future plans to make into super stock racer. Which brings me to my questions of what’s legal for super stock as far as engine year heads intake carb I would like to find the correct parts to make it legal for stock/super stock class racing any help would be appreciated

partsbob67 · 09-30-2018, 08:39 PM

aod trans has to go. stick combo only as a gt.

tjg4036 · 09-30-2018, 09:20 PM

Quote:

Originally Posted by partsbob67

aod trans has to go. stick combo only as a gt.

I was looking to go with a tremec 3550 as long as it’s the same amount of forward gears that would be fine right?

Sean Marconette · 09-30-2018, 10:23 PM

Don't waste your time or $$ on a Tremec if you are planning on being competitive in stock or SS. You can run a 4 or 5 speed. There is a lot of ET in the right gear ratio's and the clutch keeping the engine in the RPM range.

Sean

tjg4036 · 10-01-2018, 06:33 AM

Quote:

Originally Posted by Sean Marconette

Don't waste your time or $$ on a Tremec if you are planning on being competitive in stock or SS. You can run a 4 or 5 speed. There is a lot of ET in the right gear ratio's and the clutch keeping the engine in the RPM range.

Sean

What specific trans do you recommend?

Sean Marconette · 10-01-2018, 02:13 PM

I would contact G-Force and ask if they have a trade-in GF5R, that's what's been in my car since 2007. They will build it with the ratios and stand behind it without the brand new price tag. That trans will work in either Stock or SS. If you decide to jump into the SS pool, that same trans can be upgraded to clutchless without a lot of cost. Knowing power and RPM will be very helpful and they will select correct ratios. The current trend in SS is the Liberty. Jerico would be the 3rd choice. Only because they seem to have forgotten their loyal customers with older units and not providing replacement parts for that customer base. No matter what trans you go with, if buying used from a racer. Ask for the serial number and contact the manufacturer to make sure it still has parts available.

As for clutches their are several of those to choose from as well. Cale Aronson, Rob Youngblood and a few others. The bellhousing to have in my opinion is a Browell, simular to the Quick Time in a cone style bellhousing. The investment for these items is not cheap, but they will provide several years of long term abuse. The clutch and how it is setup can kill or save the drivetrain and that investment.

Sean

09-30-2018, 05:06 PM	#1
tjg4036 Junior Member Join Date: Dec 2016 Posts: 15 Likes: 1 Liked 2 Times in 2 Posts	1985 mustang GT Long time on no post I’m a happy new owner of a 1985 mustang GT this car is mostly stock with a none original 302 30 over 8.8 posi 3.73 aod trans interior intact exterior needs a paint job very solid body surface rust minor dents. I have an interest in stock/super stock racing in near future I’m going to drive it as is with future plans to make into super stock racer. Which brings me to my questions of what’s legal for super stock as far as engine year heads intake carb I would like to find the correct parts to make it legal for stock/super stock class racing any help would be appreciated

09-30-2018, 08:39 PM	#2
partsbob67 Member Join Date: Apr 2005 Location: rohnert park,ca Posts: 409 Likes: 9 Liked 37 Times in 10 Posts	Re: 1985 mustang GT aod trans has to go. stick combo only as a gt. __________________ bob beals 7244

09-30-2018, 10:23 PM	#4
Sean Marconette Senior Member Join Date: Mar 2006 Posts: 958 Likes: 617 Liked 165 Times in 60 Posts	Re: 1985 mustang GT Don't waste your time or $$ on a Tremec if you are planning on being competitive in stock or SS. You can run a 4 or 5 speed. There is a lot of ET in the right gear ratio's and the clutch keeping the engine in the RPM range. Sean __________________ Sean Marconette 84 Mustang 5060 SS/N

10-01-2018, 02:13 PM	#6
Sean Marconette Senior Member Join Date: Mar 2006 Posts: 958 Likes: 617 Liked 165 Times in 60 Posts	Re: 1985 mustang GT I would contact G-Force and ask if they have a trade-in GF5R, that's what's been in my car since 2007. They will build it with the ratios and stand behind it without the brand new price tag. That trans will work in either Stock or SS. If you decide to jump into the SS pool, that same trans can be upgraded to clutchless without a lot of cost. Knowing power and RPM will be very helpful and they will select correct ratios. The current trend in SS is the Liberty. Jerico would be the 3rd choice. Only because they seem to have forgotten their loyal customers with older units and not providing replacement parts for that customer base. No matter what trans you go with, if buying used from a racer. Ask for the serial number and contact the manufacturer to make sure it still has parts available. As for clutches their are several of those to choose from as well. Cale Aronson, Rob Youngblood and a few others. The bellhousing to have in my opinion is a Browell, simular to the Quick Time in a cone style bellhousing. The investment for these items is not cheap, but they will provide several years of long term abuse. The clutch and how it is setup can kill or save the drivetrain and that investment. Sean __________________ Sean Marconette 84 Mustang 5060 SS/N