Mpi stage 2 questions

[Studroes144]

Been tossing around the idea of doing the head shim and going with more boost on my stage 1 mpi turbo. My kit has the innercooler, few questions I have, what, if any, concerns do people have with the head shim setup? I've chatted some with the dealer who would be installing it, they have a head shim from last winter that was for a turbo project that didn't happen. Definitely will be going with aftermarket head studs, planning to run around 10 pounds of boost. Will also be upgrading the fuel pump, will just the fuel pump upgrade provide enough fuel for 10 pounds of boost or do I need to install the additional injector as well? I'm loving the sled at 6 pounds of boost. It's very powerful but still easy to control the power, just wanting to turn that WOW feeling into a WOW WOW feeling lol and since I already have the stage 1 kit I'm 3/4 of the way there. Any thoughts or Input would be appreciated

 

[STAIN]

That didn't take long.....

 

[Studroes144]

No sense wasting time lol

 

[piskapo]

I'm running 10 lbs and I did the Hurricane Install myself with the headshim+fuel pump and let me tell you it's WOW WOW WOW.

 

[Studroes144]

I guess no matter what kit is used, 10 pounds of boost is 10 pounds no matter how you slice it. Is there any real concerns at all with the head shim?

 

[piskapo]

I've had 0 issues and believe it to be a safer kit in my eyes with the headshim.

 

[Studroes144]

I've had 0 issues and believe it to be a safer kit in my eyes with the headshim.

Assuming since you have the hurricane kit that you're running the larger injectors along with the fuel pump? My biggest concern is that the fuel pump alone will safely run 10 pounds of boost and not run lean on 1/4 mile wot runs.

 

[Don O'Rielly]

No sense wasting time lol

Turn it up til it's wow wow wow ouch that's gonna hurt the pocketbook. Lol

 

[Studroes144]

Ya that's what I don't want to happen lol a local here did that with his cat 7000 with the mpi turbo and once he did that the amount of $ spent and the work load about tripled to get it all working properly again lol

 

[jim rice]

I think you just answered your own question your 3/4 of the way there don't do it again do the injectors along with the fuel pump only makes sense the fuel is only capable of what the injector can put out let her dig lol

 

[Studroes144]

Yes but I've heard from 2 sources now that the stock injectors can handle up to 12 pounds, which I'm not looking to exceed that now

 

[Don O'Rielly]

Maybe one of the turbo company's can chime in. Surely one of them has taken it a little too far. Shouldn't be up to you to figure that out. Then again no risk no reward. Nobody remembers the first loser in a race.

 

[Studroes144]

First loser doesn't bother me as much as blowing a head gasket half way thru the race lol or worse. I'm sure the last month has been swamped for all the high performance guys! And I'm not too concerned right now on time frame, I'm enjoying my sled and starting to get used to the nice added power, but if I'm gonna go thru and do this I'd like to be able to atleast get some late year riding done with it.

 

[jim rice]

Maybe one of the turbo company's can chime in. Surely one of them has taken it a little too far. Shouldn't be up to you to figure that out. Then again no risk no reward. Nobody remembers the first loser in a race.

I'm thinking that too I heard from a very reliable source once that the stock injectors are only good for up to about 4 pounds

 

[Studroes144]

I'm running 6 pounds and haven't ran lean yet on long wot runs, I know another guy running the upgraded pump whose running 9 pounds on stock injectors