2.9 Whipple on 91 Octane Tuned

[foxspy]

Hey guys,

I bought this car about 1 month ago, and it came from Louisiana with a 93 octane tune. Here in Phoenix, we only have 91 octane, so I've been taking it real easy. Last week the MDM Zone 5 pump driver took a crap on me and decided to go with a return setup. So I took it to get it tuned on 91 octane after the fuel system was done.

I'm pretty happy with the results for AZ air and crappy fuel. I need to get the Killer Chiller (stock H/E) and JLT High Boost Intake and I'll be set until I can afford bigger pumps and injectors for E85.

Mods:
04' Cobra w/ 47k miles
2.9L Whipple 3.5" Upper, Stock Size Lower
Fore budget return w/ twin GT pumps, 60lb/hr injectors
C&L Intake w/ BA2600 MAF
Bassani Mid Length Headers, Bassani Catted X Pipe, Borla Stingers
McLeod RXT Clutch w/ 26 Spline input shaft
SRA w/ 3.55 gears

2004 2.9 Whipple Cobra - YouTube

 

[Riddick]

Do you know how much timing you have in the tune? Also, I didnt think the GT pumps worked in a return set up??

 

[foxspy]

Total timing was only 14*. There were signs of knock if we went any higher. Air/fuel was at 11.2:1. This was a Mustang dyno as well.

I've read mixed opinions about GT pumps on a return setup. Essentially they're running as if I were wot all the time on the returnless.

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[rudycobra]

Good numbers , candies believe the MDM went out allready that was brand new almost


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