12valve

you said you couldt go past 100 mph, with your 4k GSK. i know my 215 goes to 120 mph easily (HTB2 64)

oh and it free revs to over 4k empty! where yours does only 3800

i put a 4k GSK in a 160 pump, and did not get any more top speed, my bro said it was cuz of the stock turbo choking. just mentioned that, cuz you said you where not getting over 100 mph.

Fuel Pressure: is 10 psi enough over 3000 rpm? while mine drops to 10 it does the same thing yours does, but then after 3300 rpm it goes to cer0, and thats when it really has no more power!

also maybe a stupid question: on another post you wrote you had your needl valve almost closed, so it takes a few minutes for the gauge to show any psi.

now if the fp drops all of a sudden over 3000 rpm, do you think the fuel can go back through the needl valve fast enough, so you would really see it drop?

or does it keep the pressure between the needlevalve and the gauge, but the real fp is too low. man im saying this cuz i have that same problem with mine! hope ya got me now....

More fuel? ... i can give you info on the rack mod also, oh and afc modding....
a guy with a similar setup like yours did the rack mod and got 10 more psi out of his twins setup

TxDiesel007

Id appreciate any help that i can get..

PM me with rack mods and what not if you can, Im pretty sure that there is more fuel in that pump, just need to unchoke the top turbo, I think my pump needs to be calibrated and fine tuned, i loosened my gsprings one click and now it revs to over 4k rpms easily, BUT it still sputters.. i dont know why.... i do believe it needs to be fine tuned, and calibrated again...

Either ways, not sure i can run over 50 psi anyways, but id like to know how, it be nice,

I opened my needle valve even more to sho 10 psi at idle like it does, and with instant response, Well even at WOT, it dont drop down to zero, so im sure its not that, New OFV, new Rubber lines, new lift pump, heck i dont know...


anyways thanks for the help!

Rick

Forrest Nearing

crank on those plumber valves, and it'll go over 50psi!

kawi600

hm, Ive been having fuel delivery problems also. I think in my case the metal lines are leaking air. I show 28psi at idle, but if I really floor it, the pressure dips as low as 10psi.
Its been losing prime here and there, so I know somethin is up. Keep an eye on that pressure, if it gets that low it will affect your power.

TxDiesel007

U have no idea how tempted i am to do this...

anyways, gonna crossdrill my gate tomorrow... ill let ya know how it goes..

Rick

thekidfan

After you fix your head problem get some D.V.'s for it. I picked up 45/90 when going to 191's from 181's. You'll also pick up some serious boost/fuel when you switch to DDP 4's.

TxDiesel007

its all in the plans my friend

Rick