Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

Sorry i missed your post the first time through and just now read it. Sorry i didn't reply, now i feel bad. What i would do (you probably figured it out) would be to loosen the mount bolt, take a jack with a block of wood and jack up that side of the engine.
Yeah, send me some contact information (email or phone # and i'll contact you before i head out.) It's really fun and doesn't cost that much (compared to other stuff you can do all day). There's usually a few mustang guys there at the track and they are more than happy to b.s. and help out when you need it. I should be heading out there soon.

You got a chip from JMS and it didn't work? For the mach 1? If you would have called and talked to Monte he probably would have fixed it for you. JMS does all my tune work and does a good job of it as well. Doesn't really seem like them to be screwing people around?




But back to my main point.

Jump over to any place that has some REAL tech such as www.hardcore50.com or www.nmraracing.com and see what those guys are doing. Not what they THINK will work or what is SUPOSE to work, but what IS working in their race cars.

I did a V-8 conversion several years ago on a 92 LX. It was cutting 1.79 60 foots with 70/30's and otherwise stock 4 banger supension. I swaped in a set of 95 GT rear springs and added a rear-sway bar. The next week at the tack 60 foots dropped to a 1.71

The 4 banger rear springs don't work unless you are shocking the tires very hard. You want the front end to come up, but the rear-end to say level and plan the power. Not just waste all your launch energy.

Either 1) the springs will absorb a lot of your launch energy and/or 2) the springs are so soft that when you do hook, the car will unload about 30-40 feet out and spin.

Take a look at the spring rates on Eibach's drag launch kit. Much softer front springs and rear springs that are about the same as stock.

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

Every stock suspensioned drag racing Mustang I have been associated with has had stock V-8 springs in the rear. 4 cylinder springs up front are the most common for guys not using coil overs.

Andy

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

I don't go to the drag strip at all. It's not really part of my interest anymore, and when it was somewhat, there were still other things I was more interested in.

That being said, I wasn't indicating 4 banger springs are better/worse/the same. I'm explaining tireburner163's logic using some rudimentary physics.

I find the conceptual side of automotive engineering less expensive than the direct application. :D

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

I have 4 banger springs up front and V8 springs in the back and I yanked a 1.59 60ft on 8 inch slicks last night.

I prefer to walk the walk rather than talk the talk.

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

Cool, i'll probably just run the 1st time with the 3.73 rear axle (allegedly 3.73) with stock control arms and lowering springs, then for the next time out i'll swap the 4.10 8.8" rear out of my LX and install the granatelli arms i got with GT rear springs and see what happens.
---update, the car is running and driving and i drove about 100 miles to start breaking the clutch in----
currently needs fixing: high idle, probably vacuum leak or carburetor - won't spend too much time doesn't affect 1/4 mile. I need to swap the stock shifter in - the summit shifter SUCKS!!!!! - all gauges are erratic or just don't plain work, i'm going to make an aluminum plate for the dash and install gauges in that. - Shake at freeway speeds, probably (hopefully) just unbalanced tires.
I have phone dial wheels for the slicks and i'll mount those up soon.
Also found out (found ID on carb) that carb is a 3310 Holley 750 cfm vacuum secondary....that explains the stumble/bog at part throttle or at mid-rpm.
I pulled out the MSD distributor and found that when i got it the timing was retarted to 6* initial so it would idle at 900 rpm, the distributor curve was the slowest possible (comes w/dist) heaviest springs (advance full @ 5500 rpm) and the total advance bushing was 21* (27* total advance w/initial). I changed the curve to hit full @3000 rpm, 36* total advance with 11* initial, made a huge difference in torque and power in general.
-things are progressing but i've had to start almost from the ground up with this stupid thing :mad:

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

I must be remembering wrong then, too bad you didn't reply earlier. You definitely have credibility friend, that may have been what he said now that I think about it but.. for some reason I remember someone using 4 cyl springs all around.

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

I hate to be redundant but.. No, not for the Mach. I said when the Diablo chip first came out which was in the spring of 2000, I think. I paid $302 for a chip to go in the 89 stroked and blown mustang, the one that currently needs main bearings. I actually met Chris in 1999, nice guy . I talked with him a couple times on the phone and we talked for quite a bit, great guy. I talked to him about upgrading my Vortech and ordering a chip. A few months later, when I was ready to order the chip I ended up talking to someone that sounded like they were eating their lunch, which I hate. Anyhow, when I got the spec sheet, which was supposed to list my mods, it said long tubes(which I don't have) and a few other minor things that I can't remember didn't match up. I called and they said it was no big deal, didn't speak to Chris. In the meantime I ended up having some cooling and charging problems that set me back a bit and by the time I got around to dealing with the chip again.. I called and told them the car was running way rich, I couldn't tune it and the chip wasn't doing anything. I asked if they could look at it in Bradenton and figure out why it wasn't working, they said they would be busy with their car at the spring break shootout, I can understand that. Then I asked if I could come by earlier in the week, on my way down to Bradenton, and Chris said he would but he got $75 an hour. I said I bought a chip that doesn't work, he said he doesn't work for free. The more I thought about it the madder I got. I'm not a rich man, I paid $302 for a chip and I expect it to do what it was supposed to do. It did absolutely nothing and I have no idea why. I don't think I should have to pay $75 an hour for someone to figure out why their product doesn't work.. maybe I caught him on a bad day, I don't know. I do know that I wish I had ordered the new Diablo chip instead of going with someone that impressed me. You have to remember, I first read about Chris Johnson and his little white coupe back around 1991(I believe), I was quite impressed that someone could get an extra 100hp out of tuning the ecm.

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

well i injured myself at work so the now almost done Gray GT may not run for awhile....crap.....things were going to good, lol :)

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

hi , i hope that you get 13.low , good luck :)

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

I just reread most of this crap... I ran 13.80s with an 89lx vert, shift kit, 3.73, msd, hot tune and a blower on street tires... at sea level. I know a stock 1990 5.0 t5 ran the quarter around 14.8 seconds. The suspension mods he gave would give about half a second and the heads/cam would give a questionable half second. In reality it would run mid 13s, hopefully.

Kell has/had no idea what it would run and I appreciate tireburner butting in with his worthless post to defend Kell. Neither of which had/has any idea what the car would have run at 600ft elevation. Thank you very much.

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

That was a quick response.

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

I am glad to see you're still around Josh

Re: 1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile
 

I see you have a t-type buick and a flh... well... you have come along. Nice rides. I rode a dyna to Sturgis in 2005 and a flh to Branson in 2008.. I wish I would have listened to Chris and bought a Harley sooner.