314 replies to this topic

[magicaljake]

today i hit a

14.301 @ 101.3 with a 2.30 60'

[550]

14.289 @ 99.02

60' 2.262



Just need some traction :-/

14.289 @ 99.02

60' 2.262



Just need some traction :-/

[JCviggen]

I can only quote what my GPS based program is telling me (no drag strip within hundreds of miles)

12.6 @ 116.2 mph. I believe the ET to be very slightly low but the traps are accurate on a real strip with above normal traction the ET might be lower though not on the street.

To compare, the Lexus IS-F I tested did 12.9 at 109.9 with the same GPS based racechrono.

[magicaljake]

14.1 @ 102

homemade intake and mbc @ 14 psi

[Account_Deleted_T5M]

magicaljake, on 22 November 2009 - 12:09 AM, said:

14.1 @ 102

homemade intake and mbc @ 14 psi

Nice trap speed jake for stock, getting those launches down huh?

[volvo500bhp]

13.83 @ 114 mph at the Brighton speed trials in the uk i need more practice

Russ

[magicaljake]

KWIK_BRIK, on 25 November 2009 - 10:01 PM, said:

Nice trap speed jake for stock, getting those launches down huh?

no.....i would like to go to a much better prepped track.... the track i go to in canada is usually real slick

that was with a 2.38 60'....if i let the clutch out any faster it will bog or spin to kingdom come...and ill run a mid-high 15


oh well...im done for the season....we will see how i fair next year with a tune and exhuast....

14.1 @ 102 stock.. only performence mods are a homemade intake and a MBC@14psi....

[Account_Deleted_T5M]

Yea me completely stock I ran a 14.1 at 100mph

[Wagon Mafia]

These T5Ms are ripping it up! Should have bought one when I had the chance...

[L8 APEKS]

'94 850T Wagon...RICA tune, 3" turbo back, K&N in airbox, ~200k miles...

14.458 @ 96.09

...then, I removed the bottom section of the airbox, and zip-tied the K&N so it stayed in the top half of the airbox...and I also removed the headlight...

15.28@98.27

14.648@98.28

...although those next 2 launches sucked, removing the airbox and headlight gained 2.2mph in trap speed, 2x in a row.

[L8 APEKS]

[FINN]

Forgot to post in here from last summer. Run was on old ignition components.

14.19

[L8 APEKS]

14.0 @ 98.5mph

Cam timing or low octane is killing my trap speed, but the I've got the launch down.

[--Aaron--]

Was that Cobalt SS the newer turbocharged model or just SC?

[Account_Deleted_T5M]

--Aaron--, on 06 March 2010 - 06:05 PM, said:

Was that Cobalt SS the newer turbocharged model or just SC?

Its a supercharged ones, a turbo SS runs a 14 flat at 103mph

[--Aaron--]

Coral_t5m, on 06 March 2010 - 07:11 PM, said:

Its a supercharged ones, a turbo SS runs a 14 flat at 103mph

Oh ok, they sure made the turbo models a bit quicker than the SC'd huh.

I wonder why GM didn't configure the turbo models to have a bit more torque......typically a turbo car makes more torque than hp doesn't it?

Looks like the SS turbo is 260/260, still really decent but yeah.....

[L8 APEKS]

It was an S/C model. I've seen similar times from the Ion Redlines. The S/C versions just don't perform as well, but they aren't slow. This guy just couldn't launch.

[S8ET6]

L8 APEKS, on 06 March 2010 - 04:39 PM, said:

14.0 @ 98.5mph

Cam timing or low octane is killing my trap speed, but the I've got the launch down.

Comparing this run to your 14.648 slip and you'll see that your 19t setup is certainly leaving some HP on the table.
The .5 reduction in ET occurs by 330' - From 330' on, the 16t setup ran just as good as the 19t does - I would have expected the opposite.

What did you change on the car between the two runs (other than a larger turbo and mis-aligned cams)?
Did you use race gas back in December and regular gas this time around? Did you upgrade to stickier tires this time? Were you racing the 19t setup with a 16t tune?

I'm not saying that you car is broken, but it clearly is missing some HP. Find it and you'll be well into the 13s.
Good luck.

[L8 APEKS]

S8ET6, on 07 March 2010 - 07:03 AM, said:

Comparing this run to your 14.648 slip and you'll see that your 19t setup is certainly leaving some HP on the table.
The .5 reduction in ET occurs by 330' - From 330' on, the 16t setup ran just as good as the 19t does - I would have expected the opposite.

What did you change on the car between the two runs (other than a larger turbo and mis-aligned cams)?
Did you use race gas back in December and regular gas this time around? Did you upgrade to stickier tires this time? Were you racing the 19t setup with a 16t tune?

I'm not saying that you car is broken, but it clearly is missing some HP. Find it and you'll be well into the 13s.
Good luck.

Been through this a million times...but yes, I had race gas (110 leaded) the first time around with the 15G (I never had a 16t), and 17.9psi. This time I had 91 octane, and less boost. In addition to the N/A cams, which I still have yet to find the sweet spot with. But despite the issues, the car was still quicker and faster. On race gas and with the same boost pressure as the 15G runs, I'm sure it would have been quite different.

Everything else, including the tires, was the same.

I'll be visiting the dyno soon to try a few cam settings and see what works the best.

[L8 APEKS]

Crappy quality...but top end picked up a bit...