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1/4 mile comparison between my old 23 1LT and my new 26 1LT...surprising results...
Well last night I took the new 26 to the drag strip. Didnt go as well as I thought/planned.
I went with my stock 23 back in october 25 and the DA was about 500 that day. Last night DA was about 1500. But man did the new car run slower.
23 time on the left, and 26 time on the right. Both cars stock, the 23 had 5400 miles and the 26 has 1100 miles. Only thing I think is hurting the 26 is the high **** but it has performance exhaust and the red 23 doesnt.
Big difference between the DA......1000. This fall with much lower DA will make a big difference in your ET. Actually that was a good time at 1500 DA.
Curious, what Exhaust system do you have? I just installed the Corsa Catback 21103Blk.
Big difference between the DA......1000. This fall with much lower DA will make a big difference in your ET. Actually that was a good time at 1500 DA.
Curious, what Exhaust system do you have? I just installed the Corsa Catback 21103Blk.
The blue one has the stock performance exhaust. The NPP one. Not the GM borla one.
I wouldnt think that 1000ft of DA had that much effect for these cars. I would have thought it was more the high wing or the fact that the new one only has 1100 miles and needs a bit more break in. Not that its being power limited, but just needing more cylinder pressure break in miles to help out that compression.
I dont know. Im already making plans to do a PCM unlock and get it on E85 full time.
The blue one has the stock performance exhaust. The NPP one. Not the GM borla one.
I wouldnt think that 1000ft of DA had that much effect for these cars. I would have thought it was more the high wing or the fact that the new one only has 1100 miles and needs a bit more break in. Not that its being power limited, but just needing more cylinder pressure break in miles to help out that compression.
I dont know. Im already making plans to do a PCM unlock and get it on E85 full time.
The very last two the end I used E85 mixture 1/4 tank. The mods were Halltech Cold Air Intake, 91eff Soler Performance throttle body, ported intake manifold, michelins all seasons. The DA was around 200.
The second one was done without E85 DA around 450.
This was my very first pass in January 2022. I believe the DA was around 800. I never duplicated another 11.20 in bonestock form. Mileage was around 1500. As far as I am concerned, your 2026 is fine. The power was not there due to high DA and temperature.
Not sure if there was any wind direction difference between the two, but I do believe the high wing is causing more drag and more of the trap speed difference than DA. Drag times took the one off their ZR1 and it was like a 4mph difference iirc.
I didn't realize the stock C8 was some much faster than the C7. My C7 Grand Sport tested low 12's.
I guess the lower 1 st gear in the C8 plus the 50 hp makes a 3/4 second difference?
I think the big difference is you’re comparing a manual to auto as the latter launches much better though the C8 did have 30hp more and less rolling resistance from it’s smaller/narrower wheels/tires over the GS.
I didn't realize the stock C8 was some much faster than the C7. My C7 Grand Sport tested low 12's.
I guess the lower 1 st gear in the C8 plus the 50 hp makes a 3/4 second difference?
The C7 is much closer than that. Here are my time slips from my C7 convertible base model back in 2014 at Bradenton Motorsport Florida. A better 60ft, which I couldn't manage, would have given my car a quicker ET because the trap speed was there.
Were you running a drag radial? If not then you are a pro driver man those short times for RWD with that much power is impressive.
Originally Posted by Fore58
The C7 is much closer than that. Here are my time slips from my C7 convertible base model back in 2014 at Bradenton Motorsport Florida. A better 60ft, which I couldn't manage, would have given my car a quicker ET because the trap speed was there.
Were you running a drag radial? If not then you are a pro driver man those short times for RWD with that much power is impressive.
Fore has been to the dragstrip a time or 2, but not sure how one is a pro with an auto and a 1.79 isn’t out of the ordinary as recall other C7’s cutting 1.6s. Did you happen to try adjusting launch control on your ‘26? As your ‘23 didn’t have it and thought it’d help.
Fore has been to the dragstrip a time or 2, but not sure how one is a pro with an auto and a 1.79 isn’t out of the ordinary as recall other C7’s cutting 1.6s. Did you happen to try adjusting launch control on your ‘26? As your ‘23 didn’t have it and thought it’d help.
BRIANTUNING was just joking around. I probably have over 70 passes at Bradenton with my C6 LS2, C7 Lt1 Convertible, and C8 HTC.. C7 Z51 that were cutting 1.6s had michelins 4S if I can recall. I had those old michelins all seasons on my C7. Those could not take higher rpm....I had to stay at 2000 rpm at launch. My C7 always trapped high 117s and low 118s definitely an indication of enough power to go quicker. Your point is right regarding 1.6 60ft......highly prepped track with different gearing and a sticker tire will do it.
Having said that, I didn't see one C7 bonestock pull a 1.6 60ft at Bradenton. But I did see low 12's. I just checked the fast list and noticed only 3 did high 1.6 including Farmer.
BRIANTUNING was just joking around. I probably have over 70 passes at Bradenton with my C6 LS2, C7 Lt1 Convertible, and C8 HTC.. C7 Z51 that were cutting 1.6s had michelins 4S if I can recall. I had those old michelins all seasons on my C7. Those could not take higher rpm....I had to stay at 2000 rpm at launch. My C7 always trapped high 117s and low 118s definitely an indication of enough power to go quicker. Your point is right regarding 1.6 60ft......highly prepped track with different gearing and a sticker tire will do it.
Having said that, I didn't see one C7 bonestock pull a 1.6 60ft at Bradenton. But I did see low 12's. I just checked the fast list and noticed only 3 did high 1.6 including Farmer.
Gotcha, hard to tell with him. Yeah, I know it’s not your first rodeo. You may be right about the OE tire differences as I was always afraid of breaking diff/trans from wheel hop on street tires with my manual and only did a 1.8 before getting softer sidewall drag radials. Though gearing definitely helps as I cut a 1.49 with C5 and a 1.58 with C6GS both 420rwhp though C5 had 4.10s and C6 the stock 3.42s. Two of the 3 were the ‘14 only A6 trans which had taller first gear than A8 surprisingly.
Gotcha, hard to tell with him. Yeah, I know it’s not your first rodeo. You may be right about the OE tire differences as I was always afraid of breaking diff/trans from wheel hop on street tires with my manual and only did a 1.8 before getting softer sidewall drag radials. Though gearing definitely helps as I cut a 1.49 with C5 and a 1.58 with C6GS both 420rwhp though C5 had 4.10s and C6 the stock 3.42s. Two of the 3 were the ‘14 only A6 trans which had taller first gear than A8 surprisingly.
sorry I’ve been thinking manual c6/7 times. That’s all I’ve owned were manuals up to the most recent string of fast cars. And if anywhere you are to hook and book, it’s BMP.
The main difference is the C8 DCT and the 60 ft times versus the C7
Also, C8 engine is in back for better traction and 30-35hp more. Everything adds up. Also, for every .1 60' you go .2 faster at the end of the 1/4 mile so if you can get the 60' down perfect the ET will be better.
1/4 mile comparison between my old 23 1LT and my new 26 1LT...surprising results...
