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2.0t HPFP swap on 1.8t
- Thread starter tplociniak
- Start date
TwinDad
Autocross Newbie
- Location
- Fort Lee, NJ
The auto hesitates some and takes a second. I know when I was jb4 only, it was quicker with the boost redux at like 40. So now I'm pushing more, the transmission doesn't like the increased boost at the shift. So I have to find that sweet spot of what shifts the fastest, without cutting the boost too much. I'm still hitting 27 psi, but I tried carrying it a little further up and starting earlier. I think it caused the timing to dip some in the top end. I didn't log it. My best on just 93 is like 6.48, so I think I'm getting to a point of too much stack. I'm going to try one less psi with it carrying it further. This is just the beginning of playing around with the stack. Still have plenty to dial in. I'm hoping I can eventually hit a 5.5 60-100. Not sure if I can with the auto though. It would be nice if I can find a road that will allow me a 60-130. I know turnpike north in front of Newark Airport has the spot, but it depends on traffic
I was running my IS20 at 25-27 in the 4000 range and I had no issues. I was tapering to 23 by 5500 and down to 21-22 by 6000. I just looked at one of your last logs. You have a considerable timing hump at 5000. Maybe you have an issue with too much cylinder pressure and it's being masked by the E40? Maybe turn it down at 5000 and try to run more boost up top? Your turbo is gonna hate life though. Plus side is IS38 life is pretty damn good. 
Have any of you thought about putting on the gen3b hpfp? Supposedly it flows more than a stock gti hpfp. https://static.nhtsa.gov/odi/tsbs/2016/SB-10105867-2280.pdf
The problem is tuning for the HPFP. I'm sure it can be tuned but there aren't a lot of people doing it.
TwinDad
Autocross Newbie
- Location
- Fort Lee, NJ
I see that they say they increased the pressure to 250bar, but that does not indicate a volume increase. There is not any additional power in the B engines as much as they are more emissions and gas mileage friendly. That pump also looks like the current 1.8 and MK6 pump. So not sure if anything has changed other than the pressure. I had my stock 1.8 pump at FOL 100 on the jb4 and saw fp_h values higher than what I see on GTI's. So pressure and volume are not always the same thing
Whoops the hpfp on the tiguan actually looks different. I think this is the part number for it 06G-127-028-D. It looks very similar to the ea888 gen4 evo hpfp on the mk8 gti.
It sucks that nobody tunes for hpfp ugprades.
Yeah I know mpi is better for all out power. Is UM the only tuner that offers mpi for the 1.8t ea888 motors?MPI maaaay be a better route. I should have a better idea next month.
TwinDad
Autocross Newbie
- Location
- Fort Lee, NJ
I'm with Reflect. I have an upgraded hpfp, @MonkeyMD is running one with Autotech internals from Reflect and I have mpi in the garage waiting to go in. He is tuning that for me as well. Currently I'm flex fuel tune with him and I've run as much as e45 with the 2.0 hpfp and is20
TwinDad
Autocross Newbie
- Location
- Fort Lee, NJ
So I spoke with Ian some today. After doing some logs, I inquired about how much more advance I should be seeing on e40. Because I'm stacking and the timing is still good. He said I should be able to get more. He just needed me to log and send to him. I'm only seeing like another 2 degrees at most up to 6,300, and then it adds a few more. Joe said he was seeing another 6-8 degrees on ethanol with his 5spd car. So it's partially on me for not logging and sending to him. I just went and stacked right away. I couldn't help it. Lol. He reminded me that my car is still a work in process because of the auto trans. So let's see how it goes from hereI was running my IS20 at 25-27 in the 4000 range and I had no issues. I was tapering to 23 by 5500 and down to 21-22 by 6000. I just looked at one of your last logs. You have a considerable timing hump at 5000. Maybe you have an issue with too much cylinder pressure and it's being masked by the E40? Maybe turn it down at 5000 and try to run more boost up top? Your turbo is gonna hate life though. Plus side is IS38 life is pretty damn good.
yea, your top end advance isn't much more than I can run on 93! It's your mid range advance which blows my mind. It will make more sense if he pulls the timing curve up towards the top. The car has maximum timing tables, you're likely at the max values right now. I guess he was planning on advancing the top more.
I was able to get about 4-5 degrees more up top over my 93 tune on E25 FYI. That's without even trying to find the limit.
I'm concerned for you regarding the misfires though.
