Elevation plays a big factor, Most people from your area run a half second + faster than people in my area with comparable mods. Hence why all the people on the leaderboard running 12&11's are from the northeast.

 

What was your stock times at that elevation? You're also in the 4 door now vs the 2dr coupe, what is the weight difference? Never looked really.

 

my stock times at elevation was a 14.5@101 in the coupe. In bradenton FL I can a 13.79@104 in the coupe stock. The 4 Door is less than 100lbs heavier. I still have the coupe too. In phoenix I usually run almost a half second faster too. Tucson elevation is killer.

ALso SIR's track prep sucks, Getting a good 60ft is hard there. Although I did cut a few 2.1's in the coupe there.

 

thanks for the info makes a bit more sense to me know, so then according to the table... 93 would do nothing? maybe hinder performance a tad?

 

93 would not hinder performance on the GMS1, nor Help it, unless you are in some hot temps.

 

well that's great to hear.. I just got GMS1 today.. gonna install it in spring.. will stick with 91 for everyday, then do 94 for track days

 

93+ is good for track days. In my coupe I run the E85 mix for track days and fun nights. I run 91 Oct in it when its just going back and forth to work.

 

The latest BYT Revision I got pulls like a freight train.....

 

Tip in knock due to too much advance around 100% airload (mid loads) is the issue on 91 octane as far as timing is concerned. My car will knock sometimes on tip on on stock midload advance and 93 octane.

 

I just realized that I have one BYT tuned car and one Term tuned car.....

 

Coupe is 50 lbs lighter than the sedan. 3000 lbs vs 2950. Although with the mods he has on the coupe I bet they are within 25 lbs of each other.

 

Yep LOL.

 

I think this makes me an LNF Fanboi

Yeah the coupe is pretty heavily modded, I can't even compare the 2.

 

I ran an E Blend on my own car today and a gas tune car has 0 chance lol. So yea, there's no comparing the 2. I will say catless plus E Blend is a bit stinky lol..

414wtq, stock clutch and holding! 346whp (still cant rev over 6k and with a busted 2nd gear too lol)

 

Husky offers 94 octane in Canada as well. My car runs it so much better on it than 91.

 

I might bug you for an E-Blend tune in the near future then.....

 

hardly any in ontario, sunoco or some "petro's are the only place

 

DIALED IN ON BOTH TUNES IN THE SEDAN, ran at SIR today, vids up in a bit

Results were very close here are the times

BYT Tune Run 1: 13.609@106.09
TF Tune Run 2: 13.544@106.66
Waited for it to cool off a bit, it was 79 degrees
BYT Tune Run 3: 13.293@106.42
TF Tune Run 4: 13.271@106.62


This is the 91 OCT Tune at 3200 Actual elevation, calculated DA at 7900 ft.

 

Thanks for results

 

Both tunes are too fricking close to call, i can't say one is better than the other. Boost levels are the same on both. Here is a vid of the 13.6 run with my wifes cell phone cam.

YouTube - 13.6 in Cobalt SS Sedan

 

I hear you man, when its that close it can go either way.

 

Now I might need to do a TF E85 Layer tune VS a BYT E85 Tune

I will be throwing a Catless DP on soon so see if I can muster a 12 sec pass with just the AB Mod and a DP.

 

Never heard this, Texas state wide is 93 octrane and regular 87 oct.

 

Nice runs drew!

 

I take it you have never been to el-paso or vanhorn. The closer you get to mexico the lower the OCT rating. Also up towards san angelo its back to 91 again. San Antonio, Dallas and Houston all have 93 Oct. I have driven through texas quite a few times, and am periodically there for months at a time.

Thanks