Drag Racing FAQ's

[JoeyB]

Noticed there are quite a few of us new drag racers on this site and wanted to start a thread that we can post questions and have them answered by more experienced racers.

[JoeyB]

1st. Question:
My 2010 Camaro has Vortech V-3 supercharger / GT-9 Cam / AR headers / Borla Cat-backs / Torque Converter / larger sway bar / dyno'd at 609 RWHP
I'm running Nitto drag radials on rear at 20 PSI while racing.
My average time at Fontana is just 12.20 ! I see other guys on here with just as much RWHP getting mid 11's per their post.
Shouldn't I be getting lower ? What am I missing ??
Just ordered 17" drag wheels 5-front / 10-rear I'm told this will help with "Rotating Mass"
Any thoughts/ideas are appreciated. Spent alot of $$ to just be getting low 12's .

[CamaroSpike23]

moved to the drag racing subforum

[nyny69]

Originally Posted by JoeyB

1st. Question:
My 2010 Camaro has Vortech V-3 supercharger / GT-9 Cam / AR headers / Borla Cat-backs / Torque Converter / larger sway bar / dyno'd at 609 RWHP
I'm running Nitto drag radials on rear at 20 PSI while racing.
My average time at Fontana is just 12.20 ! I see other guys on here with just as much RWHP getting mid 11's per their post.
Shouldn't I be getting lower ? What am I missing ??
Just ordered 17" drag wheels 5-front / 10-rear I'm told this will help with "Rotating Mass"
Any thoughts/ideas are appreciated. Spent alot of $$ to just be getting low 12's .

What is your 60'. Posting a timeslip will help a lot towards getting any advice.

[JoeyB]

Originally Posted by nyny69

What is your 60'. Posting a timeslip will help a lot towards getting any advice.

Here ya go.

[JoeyB]

Here's another

[Camarowguy]

Try the tires at about 15psi. That's not good mph for your rwhp at all. You should be trapping over 120 mph. What your d.a.? Elevation? Temp?

[Camarowguy]

To put it in perspective, my 3rd gen, which weighed a certified 3400lbs with me in it, made 407rwhp and ran 11.40's at 122mph. That's with a 1.8 60ft in 90-95 degree weather. This is at sea level. Add 600 lbs to the car and it should slow down about 6mph, which would be 115-116mph and 200hp less. Maybe my math is wrong somewhere, but something isn't adding up correctly to me?

[JoeyB]

Originally Posted by Camarowguy

Try the tires at about 15psi. That's not good mph for your rwhp at all. You should be trapping over 120 mph. What your d.a.? Elevation? Temp?

elevation is 1121.27
Temp was 90-92
car weight 4400 with me

Thanks,

[JoeyB]

Once I get Drag wheels I'll be running MT skinny's and slicks on the rear. Hopefully that will help.

[Camarowguy]

Man, with 609hp, even tho you have a huge load to haul you should be a bit faster. That Sux dude, I'm not sure what the cause is. You should be damn near in the 10's with that kind of power. The 60ft isn't that bad, but isn't that great either. The main thing I look at is the trap speed when I'm looking at a time slip, that tells the tale. With your trap speed, you have an 11.80 car. It should be a 10.80 car. If you get your 60ft down to a 1.6, you'll turn that 11.80. What gear are you going through the traps in? Are you holding it out at the end and it quits pulling or are you just shifting into another gear?

[Jchaluja]

what stall are you running?

[SRT10KLLR]

Originally Posted by JoeyB

1st. Question:
My 2010 Camaro has Vortech V-3 supercharger / GT-9 Cam / AR headers / Borla Cat-backs / Torque Converter / larger sway bar / dyno'd at 609 RWHP
I'm running Nitto drag radials on rear at 20 PSI while racing.
My average time at Fontana is just 12.20 ! I see other guys on here with just as much RWHP getting mid 11's per their post.
Shouldn't I be getting lower ? What am I missing ??
Just ordered 17" drag wheels 5-front / 10-rear I'm told this will help with "Rotating Mass"
Any thoughts/ideas are appreciated. Spent alot of $$ to just be getting low 12's .

I think the problem is the Vortech. It may be getting 600rwhp but that is peak hp. Post a dyno sheet and I bet the power under the curve is not there. At what rpm are you shifting? Centrifugal superchargers love higher rpm's. If you haven't done so get some good springs on the heads and turn it up to 6800-7000.

Originally Posted by Camarowguy

Try the tires at about 15psi. That's not good mph for your rwhp at all. You should be trapping over 120 mph. What your d.a.? Elevation? Temp?

I agree but only if he is having traction problems. If he is hooking then don't go lower or it will slow you down and feel squirrelly on the top end.

Originally Posted by Camarowguy

To put it in perspective, my 3rd gen, which weighed a certified 3400lbs with me in it, made 407rwhp and ran 11.40's at 122mph. That's with a 1.8 60ft in 90-95 degree weather. This is at sea level. Add 600 lbs to the car and it should slow down about 6mph, which would be 115-116mph and 200hp less. Maybe my math is wrong somewhere, but something isn't adding up correctly to me?

Here are my times from Fontana to get a better picture.

Run #1
RT ........... .128
60' ......... 1.863
330 ........ 5.212
1/8 ........ 7.918
MPH ....... 91.16
1000 ..... 10.229
1/4 ....... 12.172
MPH ...... 117.58

Run #2

RT .......... -.012
60' ......... 1.877
330 ........ 5.225
1/8 ........ 7.931
MPH ....... 91.17
1000 ..... 10.241
1/4 ....... 12.180
MPH ...... 118.02

Full weight making about 460rwhp on the stock 20" wheels with Nitto DR's. The tranny was hanging up on every shift. These were the very first runs after the pistons, heads, cam, headers, cai, tune etc. went in. At a later track event I ran 12.0 and think it has an 11 easy now that a rebuilt tranny is going in.

[Camarowguy]

I see all these high hp cars with dismal 1/4 mile times and so so trap speed. What's the deal? do these motors make no midrange torque? Is it all just top end hp? Maybe the heads and or camshafts people run are too big. Making big peak hp doesn't mean squat if if you have no torque. I just don't get it? If the op is running 12.20 with 608rwhp, he'll need 950rwhp to get into the 10's. I just don't get it.