97 mustang 3.8

Larry Ingram · 02-02-2018, 03:10 PM

Mark, the reason for the C4, I have one and a fresh unbroken 8" conv. to redo and just need a 2.92 or 2.75. If I drive some I can probably fit in R/SA. Car has been our street family back-up for years. I have an 8.8 and a 9" rear housing also.

Billy Nees · 02-02-2018, 03:46 PM

Use the 8.8.

Bob Shaw · 02-02-2018, 07:36 PM

This has been on my list of cars to build for years. Now I am too old to build any more.
I had one of these engines apart and it looked like a race engine inside.

jimmyhyink · 02-18-2018, 10:35 PM

Just a question on this build idea. What about trying a helical gear diff. such as the Eaton Detroit Tru-Track for the Ford 7.5. This unit is suppose to be good for 300 h.p and ell. the spider gears , the weak link on the 7.5. Also will all C.4s bolt on to the 3.8 or is there a adaptor? Going back to the 7.5. i'm just thinking about saving as much weight as possible, as the car in R/SA would be about 3200 Lbs. Just thinking out loud. Jimmy

rawhide · 02-19-2018, 12:30 AM

Quote:

Originally Posted by jimmyhyink

Just a question on this build idea. What about trying a helical gear diff. such as the Eaton Detroit Tru-Track for the Ford 7.5. This unit is suppose to be good for 300 h.p and ell. the spider gears , the weak link on the 7.5. Also will all C.4s bolt on to the 3.8 or is there a adaptor? Going back to the 7.5. i'm just thinking about saving as much weight as possible, as the car in R/SA would be about 3200 Lbs. Just thinking out loud. Jimmy

any C4 that bolts to a 302-351 will bolt to the 3.8

Roland

Larry Ingram · 02-19-2018, 11:20 AM

Thanks for the reply guys, Jimmy what gear ratio did you have in mind for the 7.5 looking at 9.0/28.0 for rear tire and also the 2.75 or 2.92 first gear with the C-4. Tire is the radial. Now trying to figure out the ECU piggyback for the injection. I have pretty much got what I want for. the motor combo and suspension. Am I right that I need to tie frames and don't need a rollbar or has that changed?

jimmyhyink · 02-19-2018, 08:11 PM

Larry I am not a good person to ask, many others on this site have much more expertise than myself. Having said that, I do like the idea of this build, with the7.5 you are limited to 456 gears. Tires I like the idea of using 8-5 26 15 m.t. On the tranny , the more 1st gear to get off the line the better. Like you lots of parts from BBK makes this interesting. Jimmy

Mark Yacavone · 02-20-2018, 01:38 PM

I would use the 8.8, the lightest spool you can find, and then gear it for a real radial slick.
It should run in the 12's and handle all that okay.

02-02-2018, 03:10 PM	#1
Larry Ingram Junior Member Join Date: Dec 2006 Location: Jackson,Ms. Posts: 70 Likes: 3 Liked 0 Times in 0 Posts	Re: 97 mustang 3.8 Mark, the reason for the C4, I have one and a fresh unbroken 8" conv. to redo and just need a 2.92 or 2.75. If I drive some I can probably fit in R/SA. Car has been our street family back-up for years. I have an 8.8 and a 9" rear housing also.

02-02-2018, 03:46 PM	#2
Billy Nees VIP Member Join Date: Oct 2002 Location: On a hilltop in Pa. Posts: 4,506 Likes: 3,613 Liked 7,854 Times in 1,750 Posts	Re: 97 mustang 3.8 Use the 8.8. __________________ Billy Nees 1188 STK, SS I'm not spending 100K to win 2K

02-02-2018, 07:36 PM	#3
Bob Shaw Member Join Date: Jan 2002 Location: Sedalia, Mo Posts: 441 Likes: 334 Liked 323 Times in 63 Posts	Re: 97 mustang 3.8 This has been on my list of cars to build for years. Now I am too old to build any more. I had one of these engines apart and it looked like a race engine inside. __________________ Bob Shaw V/SA 515

02-18-2018, 10:35 PM	#4
jimmyhyink Junior Member Join Date: Feb 2018 Posts: 6 Likes: 0 Liked 1 Time in 1 Post	Re: 97 mustang 3.8 Just a question on this build idea. What about trying a helical gear diff. such as the Eaton Detroit Tru-Track for the Ford 7.5. This unit is suppose to be good for 300 h.p and ell. the spider gears , the weak link on the 7.5. Also will all C.4s bolt on to the 3.8 or is there a adaptor? Going back to the 7.5. i'm just thinking about saving as much weight as possible, as the car in R/SA would be about 3200 Lbs. Just thinking out loud. Jimmy

02-19-2018, 11:20 AM	#6
Larry Ingram Junior Member Join Date: Dec 2006 Location: Jackson,Ms. Posts: 70 Likes: 3 Liked 0 Times in 0 Posts	Re: 97 mustang 3.8 Thanks for the reply guys, Jimmy what gear ratio did you have in mind for the 7.5 looking at 9.0/28.0 for rear tire and also the 2.75 or 2.92 first gear with the C-4. Tire is the radial. Now trying to figure out the ECU piggyback for the injection. I have pretty much got what I want for. the motor combo and suspension. Am I right that I need to tie frames and don't need a rollbar or has that changed?

02-19-2018, 08:11 PM	#7
jimmyhyink Junior Member Join Date: Feb 2018 Posts: 6 Likes: 0 Liked 1 Time in 1 Post	Re: 97 mustang 3.8 Larry I am not a good person to ask, many others on this site have much more expertise than myself. Having said that, I do like the idea of this build, with the7.5 you are limited to 456 gears. Tires I like the idea of using 8-5 26 15 m.t. On the tranny , the more 1st gear to get off the line the better. Like you lots of parts from BBK makes this interesting. Jimmy

02-20-2018, 01:38 PM	#8
Mark Yacavone Veteran Member Join Date: Mar 2002 Location: Miles From Nowhere Posts: 7,833 Likes: 2,928 Liked 5,145 Times in 1,964 Posts	Re: 97 mustang 3.8 I would use the 8.8, the lightest spool you can find, and then gear it for a real radial slick. It should run in the 12's and handle all that okay. __________________ "We are lucky we don't get as much Government as we pay for." Will Rogers