external needed to bypass extra pressure from nitrous?

[peregrine]

im thinking of spraying 100 shot on a bone stock 91 awd (well maybe not COMPLETELY stock my question is, can i get away with the stock 14b internal wastegate or would i have to upgrade? seeing how dsmmotorsport did it i should be able to do it too. be aware that this is an experiment and the only gas i will use is 110 or higher.

 

[DSMJim]

You would probablly get pretty bad boost creep from a 100hp shot on a 14B. I would try a 50hp shot to start then see what happens with your boost. If you set the boost at 18psi you'll likely jump to 23 while spraying to keep that in mind. I would try lowering the boost next and upping the shot. Basically you will want to get the boost set at whatever PSI so your at 100hp shot and say 20psi of boost or whatever you wanna run. THat may cause you to set your boost at 14psi and when your spraying you will see 20psi.

As soon as you spray your gonna see instant crazy boost so be ready for it. My advise is don't turn it on in first gear. I would also use a button to activate it so you can firmly shift and be in the gear before you start spraying again. If you ahve it set on a WOT switch like it normally as, as soon as you go wot again the spray is on. That may be a little too soon after the shift for the tranny and clutch. If you made the shift went WOT again then pressed the spray after everything was finished and you were in the new gear accelerating again the nitrous won't be as hard on the trans like shifting with it on. (not that it says on during the shift but it will come back on right after, the delay of a tenth of a second or two will help a lot)

 

[peregrine]

You would probablly get pretty bad boost creep from a 100hp shot on a 14B. I would try a 50hp shot to start then see what happens with your boost. If you set the boost at 18psi you'll likely jump to 23 while spraying to keep that in mind. I would try lowering the boost next and upping the shot. Basically you will want to get the boost set at whatever PSI so your at 100hp shot and say 20psi of boost or whatever you wanna run. THat may cause you to set your boost at 14psi and when your spraying you will see 20psi.

As soon as you spray your gonna see instant crazy boost so be ready for it. My advise is don't turn it on in first gear. I would also use a button to activate it so you can firmly shift and be in the gear before you start spraying again. If you ahve it set on a WOT switch like it normally as, as soon as you go wot again the spray is on. That may be a little too soon after the shift for the tranny and clutch. If you made the shift went WOT again then pressed the spray after everything was finished and you were in the new gear accelerating again the nitrous won't be as hard on the trans like shifting with it on. (not that it says on during the shift but it will come back on right after, the delay of a tenth of a second or two will help a lot)

i had actually planned on having it set so it wont come on unless im WOT AND on a hand held switch. cool. thanks jim. ill post here when i get it tuned and let everyone know about the creep issue if any and all the details.