Im at 335whp now and Ive just been really curious... How much power should I be making with adding a downpipe, fmic, injecs, fuel pump, and e85 tune? Under or over 400? Ive been looking at the dyno numbers lately and have been seeing alot of cars with just the fmic downpipe and the rest of my mods in my sig make around 360-370whp.

 

Is this a trick question? 335...

 

hahah no

 

Here I'll respond with the mfg stated gains

downpipe = 12whp
fmic = none , it just stopping heatsoak , if any maybe 10whp.
Injectors = none
fuel pump = none
e85 tune = could get you close to 400whp

yet again the numbers above are all conjecture since whenever you dyno it will be dependent on the day you dyno , what dyno you are using , etc.

I would not be looking at peak hp gained.. but hp/tq gained through out the curve.

Good luck

 

How does your X drive with 335?

 

Only add an 02 DP, otherwise don't bother. Figure 8-10hp for that, fuel mods nothing, FMIC will just make your HP numbers be more consistent and combat heat soak, as mentioned.

E85 is good for probably 30-40whp on the stock turbo depending on boost. So maybe around 370whp?

Not many X's are breaking 400whp on the stock turbo.

 

The guys at JMS here locally are getting around 380-390ish

 

Thank you, exactly what I was looking for

 

With 335 whp? Very well, whenever I step on it it smooth the whole way.

 

Yeah I heard dps don't do too much but I'm just getting all this right now cuz I plan to go ef2.5 or fp red after I get back from basic.

 

That's what I'm hoping for that'd be great

 

You're saying that right now you have 335 whp and then you're adding the stated mods to that?
Or you have those mods already and you're wondering if you should have more power than that?

If its option one - those mods should put you over 400.
If its option two - you should have more power than that. It could be the dyno is off or you got a crappy tune.
But I hear the stock turbo wont give you much more than 400 awhp. With those mods plus cams and an FP Green I've seen and driven a GSR pushing 455 to the wheels.

 

I have those mods but not yet installed on my car. So option one sorry fr the con fusion.

 

The the hassle of installing a DP on a stock turbo and trying to just get another 30ish whp isn't worth it.

Just do a DP with a turbo upgrade.

 

im getting charged 150 to install it and i bought my downpipe used for 150 so I thought itd be worth it