08LegndShelbyGT

Just a quick question not too sure about the answer i was wondering with the 400hp 400 trq(93 octane tune) whipple supercharger none Intercooled kit what the power ratings would be if it was a 91 octane tune? because i want to use my car as a daily driver still and dont want to deal with 93 octane. so what would the difference be with it being a 91 octane tune? and if it can be changed to more with supporting mods: exhaust, headers, etc.? let me know if anyone has the answer. thanks.

odel

I have a FRPP Whipple HO with the 93 tune and I use the car as a daily driver. I can't say for 91, but I routinely fill it up with 92 and have no problem. There seems to be a perception that high PSI prevents usage as daily driver. I am no expert but I think the tune is what matters most. Good tune = smooth car, good mileage, and good overall operating parameters. That's why I pick FRPP so I would get a tune specifically designed for my car. I have now put 15K miles on the whipple, with no problem whatsoever other than regular oil change.

moosestang

The tune from whipple is for 91, at least for the intercooled kit. I assume the non-intercooled kit is the same.

BruceH

.......

2007VistaBlueGT

+2 The FRPP tunes are for 91 octane because 93 is not available in all parts of the country believe it or not. at 400 HP you should make 340hp at the wheels, 362 is extremely good if on a low number dyno like a Mustang brand or Dyno Dynamics brand dyno, Dyno jets are little more "numbers" friendly

08LegndShelbyGT

ok well on fordracing.com the say its tuned for 93 octane so i was just wondering. also i was asking about the 400 hp kit because i wanted to keep my factory warranty

BruceH

.......

2007VistaBlueGT

True but if they pay something it's better then nothing but, it never hurts to ask. Most dealers are not FRPP dealers so you must ask that too, if you bring them the parts will they cover it or would you have to go to an FRPP authorized Ford dealer. This is all stuff I asked my dealer when I purchased my car because well...... lets just say he's familiar with me.

brad281

I don't own a sc. I am looking to add. But I don't see why a twin screw can't very easily add over 140 rwhp(est.) on 91 octane.

Vapour Trails

I would suggest getting the HO verison. One quality of the TS is that it is always boosting to some degree, creating heat. You are really limited to the boost you can run safety without intercooling. Intercooling is your insurance policy.

About the FRPP tunes, you can run 91 or 93 octane gas as I just spoke with FRPP tech support on this matter. When you load the tune there will be a parameter called "Octane Adjust". If it is set to "no" the tune will require 93 octane, if it is set to "Yes", then you can run 91 octane.