Whipple 3.5 Pully

[Stang27]

Thinking of getting a 3.5 pulley and wanted to get some thoughts on it. I have a 2015 GT whipple Gen 3 Stage 2 currently running a whipple tune and everything else is stock besides a corsa cat back. I don't race just do some shows and the occasional WOT. I run a 3.625 with 93 now but looking to do a cat delete, fuel pump,3.5 pulley, with a Lund tune. I want to run this tune with this set up but will run some boostane as insurance. Will the 3.5 be ok with the 93 tune and do I need a shorter belt ?

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[DavidHuff]

Thinking of getting a 3.5 pulley and wanted to get some thoughts on it. I have a 2015 GT whipple Gen 3 Stage 2 currently running a whipple tune and everything else is stock besides a corsa cat back. I don't race just do some shows and the occasional WOT. I run a 3.625 with 93 now but looking to do a cat delete, fuel pump,3.5 pulley, with a Lund tune. I want to run this tune with this set up but will run some boostane as insurance. Will the 3.5 be ok with the 93 tune and do I need a shorter belt ?

How much improvement did your make going from the 3.750 pulley to the 3.625 pulley with the whipple Tune?
Any !/4 Mile Times?

 

[Stang27]

How much improvement did your make going from the 3.750 pulley to the 3.625 pulley with the whipple Tune?
Any !/4 Mile Times?

I don't know for sure since I never raced it or dyno but I figure say 640 to the wheels and 11.2 with slicks with the set up now. I would hope for 10.9 with the set up I want and i would be trilled . Once everything is done with axles and clutch and all then I'll do two passes and that's it. Just want to enjoy it.

 

[DavidHuff]

Last time out my 2017 Mustang GT Auto went 10,80ET 132MPH 1.59 Sixty Foot with 92 octane plus Boostane with Whipple Tune 3.750 Pulley
I am going to a 3.625 Pulley,JMS BAP and 92 octane and 100 octane race fuel 50/50 Mix.

 

[89202]

Instead of doing a fuel pump do a whole fore system so you can run e85 that will make a big difference. And I would ask your tuner if you can go down to the 3.5 pulley. I don't think I would on the whipple tune, I'm pretty sure they only recommend going to the 3.625 on there tune.

 

[Stang27]

Instead of doing a fuel pump do a whole fore system so you can run e85 that will make a big difference. And I would ask your tuner if you can go down to the 3.5 pulley. I don't think I would on the whipple tune, I'm pretty sure they only recommend going to the 3.625 on there tune.

The auto's are faster then my manual so that sounds right plus your 60 foot is solid! I would go e85 but the closest station is like 40 min from me and don't want to deal with ordering it so the 93 works plus only a street car no racing.Getting mixed info on the 3.5 some say yes and some say no rather keep it safe with the 3.625 and be happy instead of pushing it with the 3.5 and something happening with crap gas even with the boostan.

 

[Boduke0220]

You will need ID1050x and Fore Fuel system if you want a Lund tune with the 3.5 pulley, they won’t tune that on 93.

 

[lx347cd]

You will need ID1050x and Fore Fuel system if you want a Lund tune with the 3.5 pulley, they won’t tune that on 93.

Really? wonder what their cut off is regarding return fuel system being needed?

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