The Mustang Forum for Track & Racing Enthusiasts
Taking your Mustang to an open track/HPDE event for the first time? Do you race competitively? This forum is for you! Log in to remove most ads.
- Welcome to the Ford Mustang forum built for owners of the Mustang GT350, BOSS 302, GT500, and all other S550, S197, SN95, Fox Body and older Mustangs set up for open track days, road racing, and/or autocross. Join our forum, interact with others, share your build, and help us strengthen this community!
Latest activity
Live updates
steveespo replied to the thread Mach 1 Track Build & Dark Horse Overheating + Trans Failures – Need Proven Cooling Setup.Because it is not compatible with the syncronizers in the 3160. Mercon LV is the correct fluid for GT350/Bullit/Mach 1 and Dark Horse 3160 transmissions. (see full post)
bnight replied to the thread Mach 1 Track Build & Dark Horse Overheating + Trans Failures – Need Proven Cooling Setup.Why not run Motul DCTF like the other mare mortals out there ? In the 108-115C CHT I wouldn't worry too much I think the highest I have seen on mine was 118C or so CHT. And my oil is dark but fine in the 3000 km changes I do. (see full post)- John S. posted the thread Aspirator (venturi) Vacuum Valve - anyone delete it? in General Mustang Forum.Just curious, Is "boosted" vacuum really necessary for proper function of the IMRC system and power brake booster? GT350 and Bullitt Mustangs (sold as manual transmission models only) use manifold vacuum instead of aspirated vacuum for the brake...
Junkyard Dog replied to the thread Advice on setup for street and track!.Is this a part that required a lot of fabrication to install?Was it custom made?How much effect did this change alone have on your temperatures? (see full post)
flyhalf posted a reply to the lap time of 1:37.944 by flyhalf on track configuration Full Circuit (GP) at track Sonoma Raceway.Im gonna text u in DM later :)
honeybadger posted a reply to the lap time of 1:37.944 by flyhalf on track configuration Full Circuit (GP) at track Sonoma Raceway.out of curiosity - do you know what the limitation is? amount of rpm you can trigger on the upshift? time limitation?-
flyhalf posted a reply to the lap time of 1:37.944 by flyhalf on track configuration Full Circuit (GP) at track Sonoma Raceway.Thanks and Yeah it does. Unfortunately I cant smooth more that this with oem pcm. But we will keep trying. Lol
-
honeybadger posted a reply to the lap time of 1:37.944 by flyhalf on track configuration Full Circuit (GP) at track Sonoma Raceway.Awesome lap, Ale! looks like the rear is still chirping around a bit on the down shifts?
- cjatrains replied to the thread Advice on setup for street and track!.Thanks for the heads up on the Water Pump from a GT500. I did remove the bumper cover and sealed up all the gaps on both sides and the bottom of the radiator. At the same time I installed the Dewitts 70 mm thick aluminum radiator, and the... (see full post)
TMSBOSS replied to the thread Recommendations on a good starting brake pad.My question to the question. Why not start where you believe you will finish? By using the pad that your car and driver will work in to. If the 16s are the logical end point, why not begin there? I went from stock Boss pass to pagid race... (see full post)
Mjschneidy replied to the thread Advice on setup for street and track!.The GT500 water pump seems to have been a big help for our M1. That and closing up any air leak paths around the radiator if you’re struggling with temp issues. (see full post)- EF1 replied to the thread Recommendations on a good starting brake pad.I ran most combinations of 16,12,10 front and 8,10,12 rear WR with the 14” 4 puston Brembos. I worked my way up from 10/8 to 16/12 as my driving improved. I found early on that I was out growing the pads as they wore out and just worked my way... (see full post)
-
Junkyard Dog replied to the thread Mach 1 Track Build & Dark Horse Overheating + Trans Failures – Need Proven Cooling Setup.Gunslinger55, Mercon is what Ford puts in the Tremec. https://www.mustang7g.com/forums/threads/tremec-fluid.159891/ (see full post)
- AirBiscuit posted the thread Opinions on Current Setup for Dual Purpose Street/Track in General Mustang Forum.I am new to the Track Mustang forum and would love to get opinions on what upgrades I can make for the best possible street setup, but later down the line can be used as a dual purpose for HPDE events.The Bullitt has the following...
- 665.0coupe replied to the thread Mach 1 Track Build & Dark Horse Overheating + Trans Failures – Need Proven Cooling Setup.They have been using ATF in manuals since at least the T5/Fox body days. (see full post)
- Ring_Mach1 replied to the thread Mach 1 Track Build & Dark Horse Overheating + Trans Failures – Need Proven Cooling Setup.Was in range of 108-115 🫣 But i had at 2 weeks ago a benchmark run… power seems still be okay ;)Yes, the Tremec requires Mercon ATF. It’s basically as thin as water, so I change the fluid very frequently. I’ve never tried a different oil. (see full post)
Gunslinger55 replied to the thread Mach 1 Track Build & Dark Horse Overheating + Trans Failures – Need Proven Cooling Setup.I think the trans confusing stems from you stating you run mercon as your trans fluid. That’s auto trans fluid which i think is strange in a manual. That’s why i was confused. Or do tremecs require auto trans fluid i haven’t changed mine out yet. (see full post)
