[lt4camaro]

Originally Posted by TheEnthusiast

Thanks, I'm trying to run in full street trim so no tire psi adjustments, yet.
Shifting at 6.4k rpm and I always use the NLS feature.

Next time I will try launching around 3k to 3.5k and see if that will improve 60ft.

Thanks again

Adjusting tire pressures doesnt change street trim status. All adjustments are ok, that is why they are there. The posted tire pressure is for the masses and for average type driving and is a compromise for anything else. You were given good advice to lower the rear tire pressure (with warmed tires) down to 25 psi, you should also air up front to 45 psi. Also if your spinning the tires on your launch, raising RPM will make things worse. You need to learn the art of slipping the clutch and keeping RPM up all while feeling tire spin or bite by the seat of your pant and modulating the gas pedal and getting it to the floor as soon as bite is felt.. Very hard to get a 2.0 60ft time with OE tires and a manual. Practice, practice, practice. While your at it try it with a full tank of gas , good smoky burn out and remove your front sway bar. Make sure traction control is off.

[TheEnthusiast]

Originally Posted by lt4camaro

Adjusting tire pressures doesnt change street trim status. All adjustments are ok, that is why they are there. The posted tire pressure is for the masses and for average type driving and is a compromise for anything else. You were given good advice to lower the rear tire pressure (with warmed tires) down to 25 psi, you should also air up front to 45 psi. Also if your spinning the tires on your launch, raising RPM will make things worse. You need to learn the art of slipping the clutch and keeping RPM up all while feeling tire spin or bite by the seat of your pant and modulating the gas pedal and getting it to the floor as soon as bite is felt.. Very hard to get a 2.0 60ft time with OE tires and a manual. Practice, practice, practice. While your at it try it with a full tank of gas , good smoky burn out and remove your front sway bar. Make sure traction control is off.

Thanks, I've been driving manuals my whole life. I know what you're talking about. I'm trying not to mess with tire pressures or unbolting things from the car just yet. Trying to get the best time as if off the showroom floor. Know what I mean?

I wasn't spinning at all with 2k rpm launch tbh, track prep was good which is why I want to raise my RPM to 3k or 4k next time and see if there is any improvements. Always do a burnout to clean off tires, always in comp mode with TC off , always NLS's. Waiting for the next Funday Sunday so I can continue to practice with this new to me car.

Thanks again

[s346k]

can you post a pic of the slip?

for reference my stock 18 ss 1LE went 12.6 @ 115. 100% stock. 3k' da, prepped track, dead bog side step from 5k rpm. car went 88 in the 1/8 & 115 in the 1/4.

[TheEnthusiast]

Originally Posted by s346k

can you post a pic of the slip?

for reference my stock 18 ss 1LE went 12.6 @ 115. 100% stock. 3k' da, prepped track, dead bog side step from 5k rpm. car went 88 in the 1/8 & 115 in the 1/4.

You got a lot more tire to work with having a 1LE. Also MT or AT?
Really only want to hear from the MT guys tbh.

[lt4camaro]

Originally Posted by TheEnthusiast

You got a lot more tire to work with having a 1LE. Also MT or AT?
Really only want to hear from the MT guys tbh.

Most 1LE cars were manual, and going by the 12.6 ET, it was most likely a manual. Auto trans cars are 2-3 tenths quicker ET wise. I just re-read his post, he says he side stepped his foot off the clutch, so manual it is.

[s346k]

Originally Posted by TheEnthusiast

You got a lot more tire to work with having a 1LE. Also MT or AT?
Really only want to hear from the MT guys tbh.

ss 1LEs were not offered with an automatic until 2021. also, the factory goodyear super car 3s are possibly the worst tires in history to drag race on.

i am curious how the car is running in general. mine always picked up 26+ mph on the top half regardless of mods, weather, 60' etc.

best i can suggest is recording datalogs to see what it's actually doing. otherwise it's all speculation. if nothing jumps out at you, get some more seat time.

[TheEnthusiast]

Originally Posted by s346k

ss 1LEs were not offered with an automatic until 2021. also, the factory goodyear super car 3s are possibly the worst tires in history to drag race on.

i am curious how the car is running in general. mine always picked up 26+ mph on the top half regardless of mods, weather, 60' etc.

best i can suggest is recording datalogs to see what it's actually doing. otherwise it's all speculation. if nothing jumps out at you, get some more seat time.

All good, I’ll post my results next time I go to the track. Next Funday Sunday I’m gonna be there. I hear ya on the tires, also 275’s ain’t enough to hold the power down easily. Ideally I’ll get a drag pack in the future.

[lt4camaro]

Originally Posted by TheEnthusiast

All good, I’ll post my results next time I go to the track. Next Funday Sunday I’m gonna be there. I hear ya on the tires, also 275’s ain’t enough to hold the power down easily. Ideally I’ll get a drag pack in the future.

I ran with factory 245 40 20 all seasons on my 2020 LT1 that had about 40 RWHP more than stock and ran consistant 12.0 with 2.0 60fts.
The 275 SS size rear summer performance spec tire should be able to do that easily. Its all about prep and set up of the car and driver mod.
It takes a lot of driver trickery to consistantly do 2.0 flat 60 foot times with a all season 245 tire, gotta be super careful to launch as hard as you can without spinning and still do respectable 7.9 1/8 mile times.

[s346k]

Originally Posted by TheEnthusiast

All good, I’ll post my results next time I go to the track. Next Funday Sunday I’m gonna be there. I hear ya on the tires, also 275’s ain’t enough to hold the power down easily. Ideally I’ll get a drag pack in the future.

there is a lot to be had in driving. ultimately i had a 275 drag radial on my car and it went 1.60 60' on a very poorly prepped track. in fact, those drag wheels & tires are for sale now... if you know anyone trying to make their m6 car hook better & go faster...

as stock, if you are not willing to air down the tires, i highly doubt you will see any short times under 2.1. my car went 1.96 on the 12.6 pass but bogged so hard it almost died.

[asthmamax11]

Try using launch control feature for comparison
Also make sure you're no lift shifting

[TheEnthusiast]

Decided to do some testing tonight on a private backroad using internal timer.
Launching at 3 to 3.5k rpm’s was the sweet spot. Prev best was a 12.9. Beat that on my first rip with a 12.6. 2nd rip 12.4. Decided to put her away. Need to back the internal timer up with a official slip now and still try and do better than that. Gotta wait 2 sundays for next funday Sunday.

[cjperformance]

0-60 mph time on the timer might be more helpful in gauging your 60ft time. Easier and safer to do than a full ¼ mi.

Bone stock, on stock tires, on a crappy road i could only do 4.2 seconds 0 to 60. Thats on an automatic. Lots of spin if i wasnt careful. At the track, again 100% bone stock, best was 2.1 60 ft and 12.6@113-ish. I always felt my car was behind the curve in power compared to what i saw others posting.

Anyway... it does have a *reasonable* correlation to 60 ft times which is what you are really chasing here. Long story short, sounds like you are doing pretty well for manual.

[lt4camaro]

My 2 cents regarding the internal timer, if the timer is anything like the C8 corvette timer, beware because the corvette system is regularly .2 generous in the 0-60 measurement which could carry thru to a lower 1/4 mile ET time also. Time Slips from a track would be more reliable. The practice on the street will definitely help immensely, keep doing what you are doing.

[lt4camaro]

Originally Posted by cjperformance

0-60 mph time on the timer might be more helpful in gauging your 60ft time. Easier and safer to do than a full ¼ mi.

Bone stock, on stock tires, on a crappy road i could only do 4.2 seconds 0 to 60. Thats on an automatic. Lots of spin if i wasnt careful. At the track, again 100% bone stock, best was 2.1 60 ft and 12.6@113-ish. I always felt my car was behind the curve in power compared to what i saw others posting.

Anyway... it does have a *reasonable* correlation to 60 ft times which is what you are really chasing here. Long story short, sounds like you are doing pretty well for manual.

The slower than average trap speed would definitely indicate the engines power is on the low side of the range. There are the strong engines, the weak engines, and everything in between. A 15 HP swing between the strongest and the weakest is not unusual.