It helps to be lazy indecisive and cheap, takes longer to get to the next step. ?
7
HPFP upgrade vs LPFP + MPI
- Thread starter gti925
- Start date
Hoon
Autocross Champion
- Location
- Rhode Island
Grab one of these $950 IS38's brand new with a good pump gas protune and never touch the car again. ?
I was really close to picking up a used IS38 for 530 bucks in sweden but got cold feet. Plus Sweden probably has most E85 pumps per capita and good quality, measured 3 times last summer and got between 88-93%(Ethanol is tax free so stations put in as much as possible)
Hoon
Autocross Champion
- Location
- Rhode Island
Tom Brohanks
Go Kart Champion
- Location
- Georgia
I don't like being bothered with blending. Will upgraded HPFP be enough for full E85 with an IS20? I know it's overkill, but I don't care.
Hoon
Autocross Champion
- Location
- Rhode Island
Tom Brohanks
Go Kart Champion
- Location
- Georgia
Thank you. I used to do the whole mixing thing, but I'm old and lazy. Just let me use one pump
El_bigote_AJ
Autocross Champion
- Location
- Las Vegas
- Car(s)
- 2019 GTI bunny
Yeah this is really looking like what I’m going to do... since the car is my daily I think that power level will be fun enough, then I can move back to working on my 70 camaro.
bruxwillix
Ready to race!
HOON! and or DIGGS n GREGGLES [this is the revive] lol hope you dont mind gettin your brain picked
So Im about to make the switch from WMI to MPI. Was gonna get the mpi kit along with the brushless lpfp and fully assembled hpfp from EQT [and eventually vortex xl] but youre saying that HPFP would be a detriment?? And in the end HPFP is all you need to run full E85?
Also.. planning on just ending up with a 91 custom tune after install of the turbo, mpi and upgraded pumps [theres only 2 e85 stations near me and i dont want to depend on it] but with a 91 tune you cant ever blend E? Confused about this bc when on jb4 we were using E to clean things up all the time and didnt really need to monitor the ethanol levels. But now, with a 91 eqt tune, youd have to watch your E content?
TIA
JerseyDrew77
Autocross Champion
- Location
- Virginia & NC
- Car(s)
- 2016 TR GTI S 6MT
If you go with MPI, all you need is an upgraded LPFP. You don't need an upgraded HPFP with MPI and by going with MPI, it allows you to go full E85. Going with ethanol, whether it's a mix blend or full, you should always be monitoring your E content with a sensor.
bruxwillix
Ready to race!
Monitor E content level to stay within the range of the tune? or... don't understand why monitor if you're goid to go full e. i know not all pumps are gonna really be 85% but if you're good for full E with mpi and lpfp why monitor? Another reason why i wanna just tune for 91 after mpi and pumps. But just curious bc down the road i may tune for 85 also.. ya know once i get used to the power again lol
bruxwillix
Ready to race!
risk of hp failure? whys that?
right now im FBO with WMI but i shoulda just gone MPI from the jump. wmi is going to be a PIA down the line. All good now. Making 360whp but not yet fine tuned by Ed. Still going thru revisions. MPI switch won't happen till spring or summer. Just slowly buying the parts and enjoying meth in the meantime
JerseyDrew77
Autocross Champion
- Location
- Virginia & NC
- Car(s)
- 2016 TR GTI S 6MT
Yes, it's for the tune and because the E pumps are not consistent with their ethanol. Especially during the winter time when they winterize their gas which results in a low E content.
bruxwillix
Ready to race!
probably overthinking it but so you can't ever really tune for 85 then? better to shoot for like e70.. but then whats the harm in being over 70 on e content? sorry for the ignorance