Suggestions to hook up on the street better..

I have a 2013 GT that’s making around 800whp with a PD blower, has a built 6r80 with a 2800-3k stall, Strange single adjustable front struts set on the softest setting with BMR GT500 drag springs, Viking warrior rear shocks set on 6 for compression and 3 for rebound with BMR GT drag springs, BMR K-member, BMR rear anti roll bar, BMR double adjustable LCA’s (mounted to the 2nd hole up from the bottom of the reloc brackets), LCA relocation brackets. 275/60r15 MT ET Street radial pro rears at 16psi. Previous owner got this combo all set up for the drag strip to run consistent 9.5’s at 142 cutting 1.3 60 foots off the foot brake. I’m wanting it to hook up better on the street. I upped the tire pressure to 19psi, dropped the LCA’s to the bottom hole on the relocation brackets, changed the Rear Vikings to 2 for compression and 6 for rebound. Strange struts are still on the softest setting (I know I need to make these stiffer). I’m sure that because I’m not doing burnouts to heat the tires up, 60-70 degree outside temps and it’s not consistently warm out so the pavement is cold isn’t helping at all. This car just breaks the tires loose and spins for the most part.. even on the hwy. is there anything else I can do or Just leave everything the way I have it now and not mess with anything else until temps and pavement get warmer? I wouldn’t think that I have to heat up my tires to hook up for a random vette at a stop light. I’ve heard that these tires don’t like to perform well at anything below 19psi?? Seems like I’m kind of over thinking it and I just need to wait for warmer weather and drop the tire pressure?

Welcome to the world of PD blowers. Instant torque has its advantages and in this case disadvantages. Once it gets warmer out and the roads warm up that will help but your car will never hook all the way. I have a similar set up making roughly 700 if I had to guess and last week I tried doing some logs in first gear and it was pointless. Temps were in the 60s, I have read of others dead hooking but that has not been the case for me.

You can try pulling some timing out below 6k and that will help a lot. However, once you feed it back in you will get tire spin. Only thing that is going to help is pulling power.

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Agree.. I have 3 tunes and I just run the lightest 60’ tune I have for the street that pulls tuning out. Not much more to do lol. I thought about switching to Hoosier slicks but I have a friend with a similar setup/power that runs 14psi in those tires and doesn’t hook up well either. But it’s still cool out too.

You will not get that combo to hook at a red light in the summer much less cool temps. I run slicks at 12lbs using stickie stuff and still spin some. Just the nature of the beast. Sorry.

If you figure out how to get it hooking let us all know! Not trying to come off as a A-hole, but I think its gonna be impossible w/o pulling torque/power somehow. If you don't wanna do that Id say you would have to mini tub it and put all the tire on the back you can handle and I am sure you don't wanna do that. I actually went with a turbo some for this reason its easier to get if out and it just keeps pulling.

As much as I’d love to, I doubt I get it figured out if no one here has it figured out yet lol. I’m sitting here thinking how going turbo would be easier on the street. Sounds like I have a track/hwy car.

For street levels of grip, you can't even dream about going to WOT in the first two gears (at least). Not even part-throttle to the point where you're only putting out 350 ft*lbs at the crank, which is way short of WOT output.

350 at the crank times 2.34 (2nd gear) times 2.0 (at least, for your loose torque converter stall ratio at launch) times 3.55's in the axle just puts too much at the tires (even if they're a good bit taller than stock), and you'd still be less than halfway down at the pedal.

Having full manual control over the transmission where you could start up in 3rd might tame your beast enough to keep from frying the tires just tip-toeing on the gas pedal.


Norm

I tried launching in 2nd gear and that was kind of a joke.. not flooring it, maybe half throttle but then it would start to break loose and still kind of fish tail. Not as bad as 1st gear. A 3rd gear launch.... works but man does it suck lol. No tire spinning tho at least.

Put a slick on it

I guess I’ll add that a radial and a slick work differently. With a radial you need to hit it hard and plant it down and keep it there. You need to figure out what your instant center and anti squat is, with a radial I imagine your ideal anti squat would be fairly high so you can hit the tire harder.

once your anti squat is over 100% your rear end is going to want to separate, so you would want tighter extension on the shocks.

Getting a radial to work great on a sticky track is tough enough, getting it to work great on the street is probably going to suck.

put a real slick on it and you will way ahead

I’m not opposed to putting slicks on it since all my previous mustangs had Hoosiers on them but with less power. I’ve read that slicks are more for a manual trans car because of the shock and since my car is an auto that’s stalling around 3k a radial is a better choice... however I can’t help but think the slick will help. I have a friend at the same power level with a very similar setup that runs Hoosier slicks at 14psi with a 6r80 and can’t hookup either. But it hasn’t been over 70 degrees outside yet so I think that might be why for the most part.

Go to a different part of town , hos might be easier to catch

I am running slicks and started at 17psi ending up at 12psi. The car will not dead hook on asphalt even after a burnout. But it is moving not setting and spinning. We are asking a lot from these cars and they are delivering but we must be realistic, the car can only do so much. They are street cars not race cars.

We run a "back half" event held at the unprepped end of the track. Lots of fun but it truly is the equalizer for high hp cars. We start to hook after several cars have been down the track using glue for the tires. But....at about 100 feet out she might move around a little.

I am running slicks and started at 17psi ending up at 12psi. The car will not dead hook on asphalt even after a burnout. But it is moving not setting and spinning. We are asking a lot from these cars and they are delivering but we must be realistic, the car can only do so much. They are street cars not race cars.

We run a "back half" event held at the unprepped end of the track. Lots of fun but it truly is the equalizer for high hp cars. We start to hook after several cars have been down the track using glue for the tires. But....at about 100 feet out she might move around a little.

I doubt you’re going to get it to hook with anything without doing a burnout, any drag radial or slick is going to work best with an appropriate burnout. Nature of the beast.

Tbh, I would start a thread in one of the tech sections on the Yellowbullet forum. The amount of actual racers and technical knowledge over there is awesome, as long as you stay out of the trash or be trashed and politics forum.