hpfp upgrade and injectors
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I am not, but the guy I bought a mountune exhaust manifold from was and swore by it. Pretty sure all he said all he did for his build was basic bolt-ons and that Mountune HPFP (which is just a rebranded XtremeD) and was making 400+whp in a ST, it sounded pretty rowdy, so I wouldn't doubt his claims. I would check out Xtreme-Di – GDI Performance Parts. I think your other option is Livernois, but they don't tune with Cobb AP to my knowledge.
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I’m not sure he was running that on an ST as they use a completely different hpfp. And as far as I know no one makes one because I have tried for my 2.0.
Second you do not need the the mycal from Livernois to tune. You can tune the hpfp and injectors with any software. Just bolt on the pump and tune as usual.
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1,467 Posts
Well here the deal. I’m old enough to remember when tune plus was all over writing up tests for this pump.
Then nothing, when I inquired about it he said it was no good and failed on him. Wanted to sell me a rail setup. No thanks.
Funny part he kept them on the site and now still sells them. I know from other eco platforms that the xdi pumps fail at a higher rate than I would risk. They were way behind Livernois in developing these And seems they have not got them right.
Now don’t take it as I’m pushing Livernois although I use them. I use them because of the research I did and blatant double talk about the xdi pumps.
That being said I have high hopes for the new injectors they have.
The pump you need depends on what you are doing. Lms offers two I run the smaller one but I’m also tuning meth that will supplement fueling at high boost. Best bet would be to call them tell them your setup and see what they recommend.
I can tell you they will never sell you something you don’t need trust me I’ve tried to waste a bunch of money and they shoot me down.
Then nothing, when I inquired about it he said it was no good and failed on him. Wanted to sell me a rail setup. No thanks.
Funny part he kept them on the site and now still sells them. I know from other eco platforms that the xdi pumps fail at a higher rate than I would risk. They were way behind Livernois in developing these And seems they have not got them right.
Now don’t take it as I’m pushing Livernois although I use them. I use them because of the research I did and blatant double talk about the xdi pumps.
That being said I have high hopes for the new injectors they have.
The pump you need depends on what you are doing. Lms offers two I run the smaller one but I’m also tuning meth that will supplement fueling at high boost. Best bet would be to call them tell them your setup and see what they recommend.
I can tell you they will never sell you something you don’t need trust me I’ve tried to waste a bunch of money and they shoot me down.
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FYI. The XDI HPFP requires specific changes to the hpfp configuration tables which are not released with their hpfp. You must use something like the mycal or know the tables and data to change via other tuning software.
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He had a RS head lol, pretty cool guy tbh...gave me a killer deal on that part since he was going pte turbo!!!
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Ah got it.
I was under the impression from some Livernois statements you could use access port with the setup they sell but again i may be wrong as I had them do mine.
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I meant that you must change the hpfp tables for the XDI or any current aftermarket hpfp using any tuning device/software that allows it. Cobb AT works as does others.
I was wondering about reliability and since I have wmi I figured hpfp would be a cleaner install than Aux fuel rail and wmi can do the valve cleaning.
What would happen if doing a wot run and burn the aux fuel rail fuse? I am guessing it will be trouble or nothing to.worry about?
What would happen if doing a wot run and burn the aux fuel rail fuse? I am guessing it will be trouble or nothing to.worry about?
Did you get the "evo" pump that is rated higher?
How many miles are you on the set up?
Stock turbo or not?
Did you have to bend some hard pipe?
Thanks in advance.
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So if you go fuel rail and it fails it’s a big problem.
Not so with the hpfp and injectors. Ron Henry and I talked at length about it when I was doing mine and he also agreed if far better than a rail system because all your stock safety nets stay in place. I’m running hpfp and injectors and direct port meth at 100 percent meth and I love the setup.
did you have to bend the hpfp fuel tube to.make it.fit? what injectors did you get? how many whp are you running. my target is 500whp
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Did you get the "evo" pump that is rated higher?
This is the kit I bought. Xtreme-Di Focus Rs High Pressure Fuel Pump Upgrade
How many miles are you on the set up?
around 10K
Stock turbo or not?
Stock turbo, it’s setup conservatively around 20psi for track use.
Did you have to bend some hard pipe?
I did notthe Mountune kit came with everything.
This is the kit I bought. Xtreme-Di Focus Rs High Pressure Fuel Pump Upgrade
How many miles are you on the set up?
around 10K
Stock turbo or not?
Stock turbo, it’s setup conservatively around 20psi for track use.
Did you have to bend some hard pipe?
I did notthe Mountune kit came with everything.
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