Went to track today - need 60ft help.

[Embalmer]

Well, made 5 passes today. I need to do SOMETHING to get my 60ft times down. Even with the UCA and LCA's, BFG Drag Radials aired down to 15psi I cannot get lower than a 2.1. I know that I'm leaving 2-3 tenths out there because of my 60 ft times. I tried launching at 3500 without spray and 2500 with spray but nothing seemed to help much. I know I was spinning off the line at 3500, but I did a good long burnout.

N/A:
R/T .606
60' 2.19
1/4 13.87
MPH 102.98


100 shot:
R/T .546
60' 2.164
1/4 12.861
MPH 110.45

I also have to tweak my nitrous management computer because it shuts down the flow at 6000 RPM, but I shift between 6300-6500. The 100 shot run I shifted to 4th right before the end because the run prior it fell down right before the finish.

Any suggestions for helping to improve my 60ft times are appreciated.

 

[psfracer]

A different tire. M&H 325/50/15 or 325/45/17s. Those things can handle a 1.412 60' time, 18psi whipple with a 3600 stall converter.

110mph in the 1/4 is good for a 12.0.

Also make sure you LCA geometry is correct.....

 

[stkjock]

a better tire will help as paul mentioned. however I ran the BFG DR IIs for a year on my car and could pull 1.8 60s. So IMO its in the suspension set up

also define "good long burnout" are you doing a 2nd gear? and what MPH are you seeing when u are smoking them up?

 

[Embalmer]

a better tire will help as paul mentioned. however I ran the BFG DR IIs for a year on my car and could pull 1.8 60s. So IMO its in the suspension set up

also define "good long burnout" are you doing a 2nd gear? and what MPH are you seeing when u are smoking them up?

Maybe what I thought was a long burnout wasn't. First gear, roll out of the waterbox, bounce off the limiter 3 times or so. Should I start out in 2nd? How long/what MPH should I go to?

I also should mention I'm lowered about an inch with Vogtland springs / stock shocks & struts. Maybe I need reloc brackets?

 

[cruisin]

You should be able to get below a 2.0 for sure, Id say check tire temps to start as above what gear/mph for the burn and duration

 

[stkjock]

Maybe what I thought was a long burnout wasn't. First gear, roll out of the waterbox, bounce off the limiter 3 times or so. Should I start out in 2nd? How long/what MPH should I go to?

I also should mention I'm lowered about an inch with Vogtland springs / stock shocks & struts. Maybe I need reloc brackets?

I learned from this site, do a 2nd gear burnout, watch the MPH not the RPM, look for 50-55MPH for 4-5 seconds then roll out.


yes the re-locations will help correct your instant center and as Paul mentioned check your pinion angle as well.

a lowered car will NOT weight transfer as well and will hurt your 60s

 

[Bkid]

The heat can cause tire pressure to go up.In the heat you do not need to do a great big burnout,it may cause tire pressure to up. In the heat you need to check pressure, a lot on the tires. If one side of the car is sitting in the sun ,and the other is not. You could have one side with more air pressure than the other. Where are you racing? What altitude are you at? The other thing is heat really can slow these cars down,be sure to not hot lap your car.Let it cool down all the way and you will notice a differance. I would go to a drag racing spring`s, and not be lowered as mentioned.

 

[chad05gt]

A different tire. M&H 325/50/15 or 325/45/17s. Those things can handle a 1.412 60' time, 18psi whipple with a 3600 stall converter.

110mph in the 1/4 is good for a 12.0.

Also make sure you LCA geometry is correct.....[/quote]


just angled to rear, or something else??

 

[Embalmer]

The heat can cause tire pressure to go up.In the heat you do not need to do a great big burnout,it may cause tire pressure to up. In the heat you need to check pressure, a lot on the tires. If one side of the car is sitting in the sun ,and the other is not. You could have one side with more air pressure than the other. Where are you racing? What altitude are you at? The other thing is heat really can slow these cars down,be sure to not hot lap your car.Let it cool down all the way and you will notice a differance. I would go to a drag racing spring`s, and not be lowered as mentioned.

I checked the tire pressure twice during my 5 runs and it did start to creep up to 20 lbs. I may have been doing too much of a burnout as well. I think my technique is most to blame, though because my mindset was if I had the DR's I could just dump the clutch and it would hook. Well it looks like I need to launch a bit softer and slip the clutch a bit more. Next time I go I will get some video to show you guys. Since I don't plan to make this a drag car exclusively, I'm not going to change out the springs or shocks to get a better launch. I'll just have to make do with what I have.

 

[psfracer]

Yeah, thats why I mentioned the M/T or M&H tire. Probably the easiest fix without effecting the rest of the car the 95% of the time your not at the track.

Since you are lowered, did you check your LCAs?

Look under the car and if you see this, your screwed for drag racing:

So you need relocation brackets to change the angle:

 

[Bkid]

I checked the tire pressure twice during my 5 runs and it did start to creep up to 20 lbs. I may have been doing too much of a burnout as well. I think my technique is most to blame, though because my mindset was if I had the DR's I could just dump the clutch and it would hook. Well it looks like I need to launch a bit softer and slip the clutch a bit more. Next time I go I will get some video to show you guys. Since I don't plan to make this a drag car exclusively, I'm not going to change out the springs or shocks to get a better launch. I'll just have to make do with what I have.

If you have to much air and to much burnout you are not going to hook.

Yeah, thats why I mentioned the M/T or M&H tire. Probably the easiest fix without effecting the rest of the car the 95% of the time your not at the track.

Since you are lowered, did you check your LCAs?

Look under the car and if you see this, your screwed for drag racing:

So you need relocation brackets to change the angle:

This is really good info. Make sure your relocation brackets are welded in to avoid any deflection.

 

[Freaknazty]

I may have been doing too much of a burnout as well. I think my technique is most to blame, though because my mindset was if I had the DR's I could just dump the clutch and it would hook. Well it looks like I need to launch a bit softer and slip the clutch a bit more.

Welcome to drag racing with a stick car lol . IMO all bullshit aside seat time will get you better 60ft's than anything . Believe me I know you have to figure out launch rpm , amount of slip , track prep , tire pressure , ect. It can be a mofo for damn sure . I hate to tell ya but even with dr's you cant just dump the clutch and it will hook it wont . Hell anything over 3500-4k dumps when i was N/A and i would spin my ass off , now track prep did play into that also .

Dr's will help don't get me wrong I pulled 1.55 60ft's with micky thompsons ( after turbo ) but I don't build boost off the line so basicly it's just like launching a N/A car . Paul has the lca issue nailed down , and the others have the tire issue solved , he is correct when it's really hot out you don't want too big a burnout because all your doing is making them slicker by doing it . Ususlly what I do when it's hot out is the first pass I will give them a good little burnout nothing picture worthy but not just a little chirp , then from that run on just do a small burnout . Basiclly just a little more than what you would do on stock tires . I found this helped me out alot in the 60ft battle .

One more thing I do most of the time not purposely is the first launch I'll leave at about 34-3500 rpms to " test " the track prep if it doesn't hold the second time i will try a little lower like say maybe 3000 . It all depends on what you learn from the first run , you may only barely spin so keep it at that or lower it a few hundred rpm . IF you bog at 3500 then bump it up a few ...... Where I run track prep is usually not that great so my biggest problem is 60 ft times , the night I got the 1.5's were for a pro tnt so they actually prepped it somewhat . Gl and get those vids up asap .

 

[KITT]

I use Mickey Thompson DRs @ 20psi. I leave @ 4000 rpm but I dont dump the clutch, I slip it. I like the 3.55 gears so the slip prevents a bog after the hook. I pull 1.9 60s N/A and 1.7s on a 100 shot. I hit the Nitrous soon as the clutch fully engages! Hope this helps you. Good Luck and I agree 100% on the seat time comment! Those 60ft times may not be the greatest but Im not breaking nothing and my suspension is 100% stock.