I have installed a BF 2.93.. Gonne tune it next tuesday.. I have a 2.76 ring too.. How much more performance would the 2.76 over the 2.93.. I'm debating on throwing the 2.76 on there.. Car has JLT RAI, Accufar Single Blade T/B, Accufab plenum, Billetflow IRS Brace, Bassani X, Borla Stinger Cat Back... I have the aux idler, and 4 piece idler kit too.. What do you guys think..
2.93 vs. 2.76
- Thread starter LS1_KILLA
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2.76" FTW. I love mine. to death. The only issue is belt slip, which I have never experienced and I only have the auxiliary idler. You would be fine. When it comes time for a lower, the put the 2.93" ring on there.
You may not pick up much RWHP with the 2.76 but you will get 30 or so RWTQ....
I had the 2.93 1st and then the 2.76... Starting over i would skip the 2.93 and go stright 2.76. Although with a 2.76 you may get close to pegging your maf in cold air.
I had the 2.93 1st and then the 2.76... Starting over i would skip the 2.93 and go stright 2.76. Although with a 2.76 you may get close to pegging your maf in cold air.
As mentioned if your doing an upper only go straight to the 2.76. Save the 2.93 for when you throw a lower pully on.
I went from stock to 2.76, from what i read around here, the difference between the two is obvious.
I went from stock to 2.76, from what i read around here, the difference between the two is obvious.
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I vote 2.76. if you ever decide to step up and get a lower then i say 2.93. i run a 2.93/4# and love it. my buddies all run the 2.76 and their power numbers are good. the difference could be 20-30+rwhp over the 2.93. you already have the ring and a dyno appt. so just do it!
yeah i run a 2.8 too. used to see about 15 in cold air now i see around 12 after some choice mods. def go 2.76
As long as your Maf_transfer_function was dialed in and you are not pegging your maf you should be fine. Do you have a predator or xcal2 to datalog MAf-v with?
i have a predator.. i dont know nothing about dataloggin with it?
yes just try not to do any 4th gear WOT runs.
Plug it in like you are going to load a tune... read the instructions for the datalogging function. Should not be hard to do ... I have not had a predator in years so I forget where it is. You will log TPS, RPM, MAF-V ... if your Maf gets close to or hits 5Volts your maf is pegged.
Call your tuner and ask them but again if they had your maf set up properly then the smaller pulley wont make a difference unless you peg your maf.
Seems like I ran a 2.76 with out a maf upgrade... so you may be fine.
Where in the country are you? High Altitude can make a difference too.
Kentucky
Is speedy Dyno the tuner you use? Just wondering...
I have a 2.76 and aux idler and my MAF was at 4.5 volts max. Any more mods and I'd need the mafia atleast. I'd get one just to be on the safe side....I didn't 
Nope.. Modular Depot in NKY
Don't bother with the 2.93, go ahead and put the 2.76 on there. If you don't now, you will later.
01cobravortech
Banned
I say put the 2.93 on there. Less heat, lower IAT2s and I bet you'll enjoy the consistent performance. I run a 2.8 upper on my stock Eaton and it starts to perform like a dog after about 45min of driving. You have a few exhaust mods and a T/B so you're going to see some nice numbers. Report back on your 2.93 numbers. Thats the way to go.
I'll be sticking with a 2.93 upper when I port my blower.
I'll be sticking with a 2.93 upper when I port my blower.
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