which turbo 66 or gt4094

Skinny · Nov 9, 2012

The joys of performace parts my friend..

SSpeeDEMONSS · Nov 9, 2012

Take one truck, journal bearing 66 with whichever housing and up-pipe configuration is "best", go to the track and leave off idle. Take the same truck, put on DBB 66, or 72 since it spools faster than JB 66 anyways, back to same track and leave off idle. Compare slips side by side. That should show how each spools. A video showing rpm and boost at the same time would be nice too. Now who will do it?

Garrett

probably getting paid at work to post this from my bionic

Kbryant777 · Nov 9, 2012

Go compounds helll with it

Mike@MPD · Nov 9, 2012

Meet in Va in one of the next few weekends and see

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powerstrokedkid87 · Nov 9, 2012

Screw it.... Il go back to stock

Pizza pig · Nov 9, 2012

JJ@Dozer's Diesel said:
the 72 lights better, and drives better, than a journal bearing 66. It literally whistles its booty off soon as youre in the throttle, sounds vgt almost. more like a BB 38r in a 7.3. that alone speaks volumes for ball bearing to me, even with the smaller turbine. I like it better for 6.0s around town and i know mark will like it better than that laggy 66 hes had.

Youre comparing sound vs actual boost pressure? The exhaust starts whistling and youre saying thats spoolup? Thats just the drive pressure spinning the turbine. My compressor (my turbine doesnt whistle) starts to whistle at 1500, makes boost at 1700 (3-5lbs)... Big difference.

The 38r spools no faster than a jb66 on a 7.3, driven a bunch of trucks with these combos, especially lately.

Mark needs to re-gear to help his performance. If I recall he has a suncoast trans? So that means it has their converter most likely, and their "stock stall" is actually a lower stall, so thats killing his responsiveness and spool up time of the charger, the restrictive exhaust housing/flange adapter isnt helping at all. Correct me if im wrong.

BlueWaffle · Nov 9, 2012

sounds like he needs a higher stall torque converter.... you like that Greg? LOL

Pizza pig · Nov 9, 2012

BlueWaffle said:
sounds like he needs a higher stall torque converter.... you like that Greg? LOL

:joy::joy::joy:

faster6.0 · Nov 10, 2012

Boost, sound and psi it lights earlier

06f250powerstroke · Nov 10, 2012

how you making out at the track today JJ ?

Mike@MPD · Nov 10, 2012

Boost= psi, right? Or is that a new measurement Lol

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powerstrokin15 · Nov 10, 2012

Mike@MPD said:
Boost= psi, right? Or is that a new measurement Lol

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LOL

Eric@HolderdownPerformance

Jhaddox · Nov 10, 2012

Mike@MPD said:
Boost= psi, right? Or is that a new measurement Lol

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Were talking boosht here not none of this fancy psi stuff

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faster6.0 · Nov 10, 2012

1.70 60ft and blown boots, damn cfm intake elbow....

Craig@MFI · Nov 10, 2012

I pulled that in my dually with a fuel 67 gallon tank

faster6.0 · Nov 10, 2012

Good deal. Cant wait to get some additional clamps. Apparently 55 psi the boots don't like.... It's got 12's in her no doubt.

06f250powerstroke · Nov 11, 2012

low 12s?

SSpeeDEMONSS · Nov 11, 2012

Where did the boots blow?

Garrett

probably getting paid at work to post this from my bionic

faster6.0 · Nov 11, 2012

Switched over to a cfm intake elbow for the nitrous jet and the clamp seems a hair too big, tightens all the way down but doesn't hold the boot on under heavy boost, ordered a longer boot so I can do double t bolt clamps on either side, initially it was the 45 boot off the turbo, It put a 2" gash in a 50 psi working psi 200 psi burst boot, if that says anything