Guess this belongs here - Wastegate modification

[pikeman16]

Is there a write up somewhere that explains how to modify the wastegate so it vents all 6 cylinders, instead of just the back 3? Also what does doing this do? other than keeping you from killing the first 3 with excess boost? Does it help with EGT's? Also when doing this does it make it sound more obvious when you get out of it and the cylinders vent?

[Dual K20s]

Drill the hole all the way though, cut out the divider or use an undivided spacer.

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98 Dodge 2500 Motor: 12 valve, BD exhaust brake, 4" turbo back exhaust, BHAF, KDP tabbed, 4K GSK, O-ringed head, .020 over HG, Modified AFC, DDP Stage 3 injectors, DDP DVs, 17.5* timing, 16cm^2 ex. housing Drivetrain: 5-speed 4x4 w/ SB clutch (13" OFE 450Hp)

[pikeman16]

does this give any kind of performance gain or cause any extra noise or is it just to keep from blowing those front 3 cylinders if you start making big boost?

[jcarl735]

drill which hole all the way through now?

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3.55s, 305/70/16s, MBRP 4''Turbo Back, #100 Full Forward, AFE ProDry Stage 1, DDP3s, Boost Elbow, AFC !MIA Silencer Ring !MIA, 55 PSI, DiPricol Boost/Pyro/Trans, KDP Tabbed, Built 47re, Farmboys Full Cut DVs, 3k GSK, ATS Quikspool

[pikeman16]

does it just keep you from killing the motor? or does it have actual added benefits? (yes i know not killing the motor is an added benefit............)

[illflem]

Drilling out the web creates faster spool up and lower egts.
The Banks kits that everyone loves to cuss add this mod to the turbo.

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Bill
'95 2500 4wd auto
'95 3500 5 speed heavy hauler
Both far from stock

[pikeman16]

yeah but how much is that Banks kit compared to a free hole drilled all the way through like K20 said

[shaggyant]

Any pics of said hole and whats required to be done in order to drill it?

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97 5spd 4x4 with # 10 fuel plate, 3k GSK, 16.5* timing and Isspro gauges.

[snackpack]

this doesn't add up to me, i don't know 12's well (someone please enllighten me) if you're boosting the whole valley of the head then how will you overboost the front 3 cyl? all 6 are still getting boost, just less as the wastegate is allowing SOME of the exhuast to bypass the turbine, thus not spinning the turbo as much and less boost. if you wastegate all 6 cyl, it will just have too actuate the wastegate less to achieve the same decrease in boost right? are 12v's that diff than the 24v's on the wastegate?

i may be off here LOL

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2002 silver long bed, 6-speed,ADRENALINE, superchip, rv 275's, AIRDOG 150, boost elbow, dual silverline 4", with 6" tips, S&B intake.. http://http://www.cumminsforum.com/forum/utah/thank you to http://http://www.hollandcourtsales.com/

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Last edited by snackpack : 09-06-2008 at 12:09 AM.

[harvey4804]

bueller.....

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2004.5, QC, LB, Crapomatic, 4x4 Factory Nav. AirDog 100, Arson Kit, AEM Bruteforce HD, Silverline 5" t409, BMK-11, Mag-Hytec, Bilstein 7100, B&W, Tekonsha P3,
1996 Chevy C2500 350 Vortec V8 NV4500, 7.5" Fabtech lift, 35" rubber, Eagle Alloys, K&N, Hooker Comp Headers, Flowmaster, and a bunch of other things I wasted my money on.
HMX-1 Executive Flight Detachment Avionics Technician

[K204DR]

you mean this?

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88 Chevy airforce crewcab 1ton 6bt 47rh modified 4K GSK Pcola 2's starwheel and preboost tweaked.
72 Scout 4bt 1tons http://4btswaps.com/forum/showthread.php?t=1667

[jcarl735]

so what do you do to that hole there? no homo hahahah

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3.55s, 305/70/16s, MBRP 4''Turbo Back, #100 Full Forward, AFE ProDry Stage 1, DDP3s, Boost Elbow, AFC !MIA Silencer Ring !MIA, 55 PSI, DiPricol Boost/Pyro/Trans, KDP Tabbed, Built 47re, Farmboys Full Cut DVs, 3k GSK, ATS Quikspool