[wnta1ss]

Originally Posted by Dynamical

Guess I'll find out soon enough about the A10 dude thanks for the info

Seems obvious to me that the SS/LT1 A10 could run quicker with a trans tune than it is doing with the locked TCM. Check out the following thread https://www.camaro6.com/forums/showt...=617512&page=2 where an A10 SS with trans tune runs 11.13@123.7, and an A10 LT1 that still has the locked TCM runs 11.34@123.6, hmmm. Same mph for these samples, both supposed to be stock A10 torque converter and stock gears, trying to be apples-vs-apples.

[Dynamical]

Ok, so it took me a while to sift through the posts
Cars in comparison...
Don's (lt4camaro) LT1 - 11.34 @ 123.6 mph
and
ZL1C7 SS 1LE - 11.13 @ 123.7

I'm not saying a trans tune wouldn't do what you say but I just think in this case between those two cars is a bad example.
IMO there's too many variables and unknowns between those two cars to come to a solid conclusion to prove it's obvious. Maybe you can point out what I am missing?

Weight taken out for each car was pretty close.
Mods pretty close.
I know the LT1 car had drag pack (I own them now, thanks Don ) but what about the 1LE car?
LT1 had a 1.67 60' but we don't know about the 1LE car.
1LE car does start heavier but has a better gear so that could be taken into account also.
Then there's some confusion on the actual DA of both runs. LT1 says 12-1500 but in his post here https://www.camaro6.com/forums/showthread.php?t=615768 he says 900 range.
1LE says his is "500 ft corrected" so not sure what to make of that.

For .2 difference and same MPH there's too many variables there for me to look at and say yeah it's the trans tune. For no trans tune on the LT1, I think it ran pretty damn good! The same night my car ran, it did .2 slower probably due to heat soak even though it ran in a little bit better DA later in the night. Just too many variables

[Kamero6]

It would be cool to compare an SS original tune and LT1 original tune.

Does the fact that the LT1 comes with 245's in the rear change the launch control / torque control and tables?

I will install soon my 275's with SS rims and I'd like to see if the car is going to behave like an SS or there will be some extra nannies since the 245's were the factory tires.

[Kamero6]

Originally Posted by wnta1ss

Guessing that you've never raced on a drag radial? The launch control IMO is calibrated for the stock tires. Once you've installed drag radials, it should hook up without computer intervention. For me, even on the stock SS runflats, I was already turning T/C off for drag racing and not using launch control. Had read that the nannies were slower than driving it yourself, and went with that advice at the time.

I never used drag radials. The times I hit the 1/4 mile was to just test the car and have fun.

[wnta1ss]

Originally Posted by Dynamical

Ok, so it took me a while to sift through the posts
Cars in comparison...
Don's (lt4camaro) LT1 - 11.34 @ 123.6 mph
and
ZL1C7 SS 1LE - 11.13 @ 123.7

I'm not saying a trans tune wouldn't do what you say but I just think in this case between those two cars is a bad example.
IMO there's too many variables and unknowns between those two cars to come to a solid conclusion to prove it's obvious. Maybe you can point out what I am missing?

Weight taken out for each car was pretty close.
Mods pretty close.
I know the LT1 car had drag pack (I own them now, thanks Don ) but what about the 1LE car?
LT1 had a 1.67 60' but we don't know about the 1LE car.
1LE car does start heavier but has a better gear so that could be taken into account also.
Then there's some confusion on the actual DA of both runs. LT1 says 12-1500 but in his post here https://www.camaro6.com/forums/showthread.php?t=615768 he says 900 range.
1LE says his is "500 ft corrected" so not sure what to make of that.

For .2 difference and same MPH there's too many variables there for me to look at and say yeah it's the trans tune. For no trans tune on the LT1, I think it ran pretty damn good! The same night my car ran, it did .2 slower probably due to heat soak even though it ran in a little bit better DA later in the night. Just too many variables

Sorry, I saw 2023 10spd, post did not mention it was a 1LE. That means 2.85 rear instead of 2.77, however, it also means even more weight than a base SS (elsd plus larger front brakes). The LT1 is lighter than a regular SS by 66lbs according to GM, not sure how much compared to the SS/1LE, perhaps 80~100?

The reason that I focused on mph was because it should show power to weight. Ignoring for a moment that the SS/1LE mph was helped by the tune, and it would have been a little lower on mph with the locked tcm in my experience.

Also, it's not just these 2 cars that convinced me of the locked tcm issue. Multiple members have done bolt-on LT1s with the tcm still locked, and their ETs have been a little off relative to the mph IMO. Same thing that I had when my tcm was still locked. Now someone unlocks/tunes their A10 and it is quite noticeably quicker than a locked tcm, just like I had experienced with the A8.

[Dynamical]

Originally Posted by wnta1ss

Sorry, I saw 2023 10spd, post did not mention it was a 1LE. That means 2.85 rear instead of 2.77, however, it also means even more weight than a base SS (elsd plus larger front brakes). The LT1 is lighter than a regular SS by 66lbs according to GM, not sure how much compared to the SS/1LE, perhaps 80~100?

The reason that I focused on mph was because it should show power to weight. Ignoring for a moment that the SS/1LE mph was helped by the tune, and it would have been a little lower on mph with the locked tcm in my experience.

Also, it's not just these 2 cars that convinced me of the locked tcm issue. Multiple members have done bolt-on LT1s with the tcm still locked, and their ETs have been a little off relative to the mph IMO. Same thing that I had when my tcm was still locked. Now someone unlocks/tunes their A10 and it is quite noticeably quicker than a locked tcm, just like I had experienced with the A8.

I looked it up and a 2SS 1LE stock curb weight is 142LBS heavier (1SS 1LE 7LBS lighter than 2SS) than the LT1. They appear to have roughly the same weight taken out. So yeah, that definitely means something also. 142LBS in my old LS1 car was worth about .2 in the 1/4 at 3400-3450 race weight.

One thing is for sure, I'll be able to test it out on my personal car after a tune

[lt4camaro]

Originally Posted by Dynamical

I looked it up and a 2SS 1LE stock curb weight is 142LBS heavier (1SS 1LE 7LBS lighter than 2SS) than the LT1. They appear to have roughly the same weight taken out. So yeah, that definitely means something also. 142LBS in my old LS1 car was worth about .2 in the 1/4 at 3400-3450 race weight.

One thing is for sure, I'll be able to test it out on my personal car after a tune

Hey Joe, glad you made it to the track and I would say a pretty good pass considering the DA.
You will not need a trans tune to better your 60ft times. My tires /wheels that you now have has given me a 1.70 60ft, a 1.68 60 ft and a 1.67 60 ft on 3 separate passes all on different days and time of year. It is well documented the best 60 ft times are achieved by just smacking the throttle off dead idle. Run them at 16lbs down the track. Run a 1/8 tank of fuel helps also. I never experienced any bog at all off the line with the nannies all off. Its possible Jannetty's conservative tune does tone down some torque management. You know my 2021 LT1 has a untouched untuned trans. My take on your 1.85 60ft I do believe you spun a little. My weakest 60 ft the very first time on the tire you have from me was a 1.79 . I had no clue about how they were going to hook and I did not just mash it to the floor. Even with the easy launch and then the right to the floor approach, 330ft was 4.95 VS your 5.2 indicating no spin once the gas was to the floor and no possible spin on the 1-2 shift. Good luck my friend and Oh yeah, remove your front sway bar.

[lt4camaro]

Originally Posted by Dynamical

Ok, so it took me a while to sift through the posts
Cars in comparison...
Don's (lt4camaro) LT1 - 11.34 @ 123.6 mph
and
ZL1C7 SS 1LE - 11.13 @ 123.7

I'm not saying a trans tune wouldn't do what you say but I just think in this case between those two cars is a bad example.
IMO there's too many variables and unknowns between those two cars to come to a solid conclusion to prove it's obvious. Maybe you can point out what I am missing?

Weight taken out for each car was pretty close.
Mods pretty close.
I know the LT1 car had drag pack (I own them now, thanks Don ) but what about the 1LE car?
LT1 had a 1.67 60' but we don't know about the 1LE car.
1LE car does start heavier but has a better gear so that could be taken into account also.
Then there's some confusion on the actual DA of both runs. LT1 says 12-1500 but in his post here https://www.camaro6.com/forums/showthread.php?t=615768 he says 900 range.
1LE says his is "500 ft corrected" so not sure what to make of that.

For .2 difference and same MPH there's too many variables there for me to look at and say yeah it's the trans tune. For no trans tune on the LT1, I think it ran pretty damn good! The same night my car ran, it did .2 slower probably due to heat soak even though it ran in a little bit better DA later in the night. Just too many variables

Hey Joe, see if you can dig up the time slip for the 1LE pass and I agree on wondering what the 500 ft correction is all about, was it a track corrected time slip to calculate for a lower DA? If I ran in 900 DA, I probably would have picked up 1MPH and a tenth.

[Dynamical]

Originally Posted by lt4camaro

Hey Joe, glad you made it to the track and I would say a pretty good pass considering the DA.
You will not need a trans tune to better your 60ft times. My tires /wheels that you now have has given me a 1.70 60ft, a 1.68 60 ft and a 1.67 60 ft on 3 separate passes all on different days and time of year. It is well documented the best 60 ft times are achieved by just smacking the throttle off dead idle. Run them at 16lbs down the track. Run a 1/8 tank of fuel helps also. I never experienced any bog at all off the line with the nannies all off. Its possible Jannetty's conservative tune does tone down some torque management. You know my 2021 LT1 has a untouched untuned trans. My take on your 1.85 60ft I do believe you spun a little. My weakest 60 ft the very first time on the tire you have from me was a 1.79 . I had no clue about how they were going to hook and I did not just mash it to the floor. Even with the easy launch and then the right to the floor approach, 330ft was 4.95 VS your 5.2 indicating no spin once the gas was to the floor and no possible spin on the 1-2 shift. Good luck my friend and Oh yeah, remove your front sway bar.

There he is, Hey Don! Not sure if you read it or not but when I left home I had 25PSI in the rears and kept them there the whole night so I suppose that's possible it could of hurt the 60'. I will say on my fully built 2001 Camaro I ran 275 40 17 MT ET ST S/S with 32PSI and got my best 60' of 1.5. That was my best pass at 10.9. That was with just a yank SS3600! No wheel spin.
These ET ST Rs are a better tire than the S/S and they were aired down to 25PSI, I do not believe they spun at all. All 4 runs I believe they did not spin one bit.
One thing is I did experience wheel hop during burnout with this car/tires that I NEVER had with the 2001. I'm wondering what the cause is and how to stop that. This is what I was afraid of with IRS vs solid axle.
I was wondering what your opinion is on this and what your door sticker says because you have basically the same car I do? https://www.camaro6.com/forums/showthread.php?t=619404

Originally Posted by lt4camaro

Hey Joe, see if you can dig up the time slip for the 1LE pass and I agree on wondering what the 500 ft correction is all about, was it a track corrected time slip to calculate for a lower DA? If I ran in 900 DA, I probably would have picked up 1MPH and a tenth.

Yeah see, exactly my point. There's way too many unknowns and variables to figure that situation out. I did a quick search to try and find more info about that car but that pass was never posted on here. Iv never posted any "corrected" stuff so I have no idea. It only adds to the unknowns/variables.
Let me know about what you have on your door sticker I'm curious what ya got

[lt4camaro]

Originally Posted by Dynamical

There he is, Hey Don! Not sure if you read it or not but when I left home I had 25PSI in the rears and kept them there the whole night so I suppose that's possible it could of hurt the 60'. I will say on my fully built 2001 Camaro I ran 275 40 17 MT ET ST S/S with 32PSI and got my best 60' of 1.5. That was my best pass at 10.9. That was with just a yank SS3600! No wheel spin.
These ET ST Rs are a better tire than the S/S and they were aired down to 25PSI, I do not believe they spun at all. All 4 runs I believe they did not spin one bit.
One thing is I did experience wheel hop during burnout with this car/tires that I NEVER had with the 2001. I'm wondering what the cause is and how to stop that. This is what I was afraid of with IRS vs solid axle.
I was wondering what your opinion is on this and what your door sticker says because you have basically the same car I do? https://www.camaro6.com/forums/showthread.php?t=619404




Yeah see, exactly my point. There's way too many unknowns and variables to figure that situation out. I did a quick search to try and find more info about that car but that pass was never posted on here. Iv never posted any "corrected" stuff so I have no idea. It only adds to the unknowns/variables.
Let me know about what you have on your door sticker I'm curious what ya got

Joe, I never got any wheel hop whatsoever. Perfectly smooth burnouts. My only advice is get the RPM and wheel speed up very quickly (like 5500rpm) in 1st gear and immediately paddle up to second gear and maintain the RPM while holding the car steady.. My GVW info is within two lbs of yours. I used some neighbors scales to weigh my LT1, 3600 LBS on the button with a full tank of fuel, Front sway bar off, front bumper reinforcement off, all the plactic off the engine and under the front, w/s washer tank removed and back seat removed 28lbs. That equates to over 50 lbs off the nose of the car.

[lt4camaro]

LT1 curb weight (full of fuel) with 10 speed auto trans 3681 lbs.



https://media.chevrolet.com/media/us...2021.tab1.html

[Dynamical]

Thank you Don

[wnta1ss]

Originally Posted by lt4camaro

I used some neighbors scales to weigh my LT1, 3600 LBS on the button with a full tank of fuel, Front sway bar off, front bumper reinforcement off, all the plactic off the engine and under the front, w/s washer tank removed and back seat removed 28lbs. That equates to over 50 lbs off the nose of the car.

Was that full-tank 3600lbs with the stock wheels/tires on, and the passenger seat still in the car? Not with your old drag pack (-80) or pass seat removed (-48)?

[lt4camaro]

Originally Posted by wnta1ss

Was that full-tank 3600lbs with the stock wheels/tires on, and the passenger seat still in the car? Not with your old drag pack (-80) or pass seat removed (-48)?

That was with the OE tires and wheels on the car, and pass seat in. Also I am not sure the drag pack is worth 80lbs. Realistically the front skinnys saved 55lbs and the rear saves 15 to 17 lbs if my memory serves me.