Help me make a decision

[mvrda5.0]

How much power can I make with a Boost a pump (BAP) on 91 (P1X Procharged)


FOR MORE CONTEXT READ BELOW:



I was planning on getting a return style fuel system and running e85 with the ID1300-XDS and 2018 ported manifold (that I already purchased) but I ran into some cosmetic complications that may cost me a pretty penny.



For a bit more context I hit an animal that broke my GT500 bumper that I just wrapped satin black. Debating removing the whole wrap, and paint correcting/ceramic coating the car cause my paint is horrible (which is why I got the wrap) the wrap is also really shitty but that’s a whole other story and issue on its own.



I’ve been planning on this big power upgrade for a long time but I’m not sure if I’m jumping the gun, should I just use what I currently have and do the re-tune for now or go through with the return style system?



My car has a really really garbage tune from the last company that did it. I’m only making 505whp and have a rev limiter at 5.2kRPM it also wants to stall out occasionally. That’s why I’m contemplating simply using what I got and holding off on the return style system for some time. If it’s a negligible power increase due to the BAP like max HP being 550whp I’d rather just wait, cause dyno tunes aren’t cheap.

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[NGOT8R]

I don’t have a SC, but I do have nitrous. Running on E85, I made 639 rwhp/602 rwtq on a 150 shot with the factory fuel pump and returnless system using a JMS BAP.

 

[SnowFox]

Just to clarify you have the S/C on the car now? And youre making 505rwhp?

 

[mvrda5.0]

Just to clarify you have the S/C on the car now? And youre making 505rwhp?

Yes :( it’s a really bad tune idk what they were thinking! A centrifugal supercharger with a rev limiter at 5.2k rpm is diabolical lol.

 

[mvrda5.0]

Yes :( it’s a really bad tune idk what they were thinking! A centrifugal supercharger with a rev limiter at 5.2k rpm is diabolical lol.

 

[Vtown702]

That tune you have may have been made that way as you say u plan too run a returnless fuel system. So if you are driving around on a stock fuel system with a blower… oooh that’s just asking for trouble. My suggestion is install that fuel system and the go get retuned.

 

[Wolfys11]

Gen 2 coyote + centri + 8psi ish pully + bap, dw400 pump, or the combo of both + quality 93 pump gas = 680 whp ballpark, depending on the dyno. 5.2k redline means the guy is clueless on what hes doing LOL

get a proper tune on 91, i highly recommend wengered for tuning. You will be absolutely more than happy with what you got, and then you can always add the fuel system and e85, pully swap to have more. You literally have almost a na fbo power level with a supercharger, im surprised you didnt ask for a full refund and told that guy to f off

 

[Wolfys11]

That tune you have may have been made that way as you say u plan too run a returnless fuel system. So if you are driving around on a stock fuel system with a blower… oooh that’s just asking for trouble. My suggestion is install that fuel system and the go get retuned.

Stock fuel system is not that bad, for pump 91
That was tuned that way cuz the tuner was clueless

 

[J17GT]

What injectors are in the car? How many pounds of boost? Agree get rid of the junk tune.

My gen2 whipple car made just over 700rwhp on 93 with 11psi of boost on the whipple tune with only the DW 72# injectors that come with the stage 2 kit. 100% stock fuel pump and no BAP.

On 91 you'll make a bit less due to not as much timing as 93, but you can still make over 600rwhp if the tune is good with that P1X.

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