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Converting to 4 bolt.....Am I overlooking anything??

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BetMinesFaster

Turbo LSX Trader
Joined
Aug 7, 2007
Messages
1,000
Hey guys, Im ordering a 4 bolt housing for my turbo tommorow, I have a PT71GTQ, With the added cubic inches with my mods and the heavy ported GN1's and GN1 intake im thinking that the 3 bolt will be spent, im curious if there is anything im overlooking???

-.81 AR Tang. 4 bolt housing
-new flange to weld to header
-external gate and plumbing
-v-band downpipe with clamp

Modify TA's for external gate and piping into downpipe...

Thanks in advance for the info, Ryan
 
John, Crazy fast street car, building for a high nine second combo with A gental tune..

Heres what it will have:

109 stroker - 250ci
RJC girdle
program main caps
Raceported GN1's
GN1 intake
218* ish roller cam with T&D 1.65 rollers
large fmic with 3" piping
PT71gtq 4bolt
TA's converted to 4bolt external gate
Maftpro with 83's and 4" intake, mafless
340 walbro doublepumper
billit 200 4r with a 3800 stall
Alkycontrol


And some other misc goodies......

Whatcha think??
 
Be sure to add in a bunch of fuel before running at high boost/rpm. Just watch the correction factor up top.
 
Be sure to add in a bunch of fuel before running at high boost/rpm. Just watch the correction factor up top.

I will also be running a wideband and datalogger, hopefully it tunes easy without all the headaches and grumbles!
 
John, Crazy fast street car, building for a high nine second combo with A gental tune..

Heres what it will have:

109 stroker - 250ci
RJC girdle
program main caps
Raceported GN1's
GN1 intake
218* ish roller cam with T&D 1.65 rollers
large fmic with 3" piping
PT71gtq 4bolt
TA's converted to 4bolt external gate
Maftpro with 83's and 4" intake, mafless
340 walbro doublepumper
billit 200 4r with a 3800 stall
Alkycontrol


And some other misc goodies......

Whatcha think??

Looks good, I would consider a single pump that could get the job done.
They are safer in the long run.
Call Dusty on the converter if you have not already!
 
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