Do you have anything in place of the J-Bracket to support your turbo?
6466 Turbo Talk.
- Thread starter 434nova
- Start date
Not sure if this would help in the short term, for anyone considering the HPT, but my engine builder modified both PS and DS brackets to allow more degrees of freedom for PTE SLIC. Even when I installed it on a mostly stock setup I had problem with the PTE lining up properly and Dave Roland modified the stock DS bracket and simply built a new PS side bracket. The one PS one from PTE had cracked. I guess the first problem you would face though in moving the PTE SLIC is alignment with your turbo, not a whole lot of give in the short hose. May be other issues, but food for thought. Does this only apply to the 4-bolt exhaust housings?
It applies to the 3 bolt also.
turbocamino1
turboholic
- Joined
- Jul 7, 2007
Its the PTC 9.5 N/L 17 blade Spect by Dusty for my exact set-up,,turbo.cam etc.. couples great. I think if i throw another 50 HP at the car,especially at the hit ,it may drive thru the converter?
- Joined
- Jan 18, 2011
Curious on you thoughts on going from the 45a to the Hpt 6466, i remember your other thread, or was there another turbo in between them?
- Joined
- Jan 18, 2011
I have the same converter its almost impossible to drive over.
434nova
Active Member
- Joined
- Sep 30, 2013
I loved the 45a and it performed well for me. 10.06 @ 135. But there is no comparison to the hpt 6466. It feel like I gained 100 cubic inches and compression. Night and day difference. If anyone has a heads, cam, Buick I’m recommending them a hpt 6466. Turbo is a monster. Next year I’m going to see what it can do. I also will be going to e85 from the current pump gas alky setup.
- Joined
- May 25, 2001
Once you go to e85 it will spool even faster.
- Joined
- Jan 18, 2011
I suspected as much, i like to hear real world experiences , cool stuff
Think tnetics newer 64 11 blade would work with a good exhaust housing. 11 blades works best up to 25/26 psi boost which is what a lot keep it at.
I'm sure hpt 64 as a whole is much better but I have a 11 blade compressor with 68f1 exhaust wheel (not 6466) works good at 25psi
Ive run
25psi is pretty conservative depending on motor combo.
We used to run them in diesel boost land
I've run both 64/65bb and 64/68 old f1 turbine wheels on various ex housings and different compressor covers.
They made great power with spool times in the .3 area to all in max power.
The tnetics turbos as well.
25psi is pretty conservative depending on motor combo.
We used to run them in diesel boost land
I've run both 64/65bb and 64/68 old f1 turbine wheels on various ex housings and different compressor covers.
They made great power with spool times in the .3 area to all in max power.
Good to know! I only see T3 & T4 inlets with non-Buick discharge (V-band or 4Bolt) on their website. I need 3 bolt inlet for my TA headers and Buick-style discharge for 3.5in TA DP with internal (cough, lol) waste-gate. Need to contact them...Comp builds whatever sizing you want
So if your willing to experiment and have alot of data (like me for instance) you can have a custom turbo built
Done a few 3 bolt with ta headers and 3.5 dp.
Go right to the .85 3 bolt pte ex housing nothing smaller.
I want to reiterate what Mr.Spool said about internal gates versus external gates. You can make all the power you want with an internal gate and you can make as much boost as that turbo can make and you can have zero boost creep, which doesn't concern me at all, not even a little bit, in fact I'm all for some boost creep in the higher RPMs.
The bottom line is that the internal gate can either make low boost or high boost. The benefit of the external gate is that it can make both low boost and high boost. Of course, this can only be accomplished with the addition of an electronic boost controller. The benefit of the external wastegate is that you can make lower boost early in a run and ramp it up. You can't do this with an internal gate I've never been to the track with my car and I have an old 6776 cast wheeled turbo that's spools very well now that I have a 273 cubic inch engine bolted to it, but because I only have an internal wastegate, my car is useless in a street race. The much better / more versatile external wastegate would cure that problem.
The bottom line is that the internal gate can either make low boost or high boost. The benefit of the external gate is that it can make both low boost and high boost. Of course, this can only be accomplished with the addition of an electronic boost controller. The benefit of the external wastegate is that you can make lower boost early in a run and ramp it up. You can't do this with an internal gate I've never been to the track with my car and I have an old 6776 cast wheeled turbo that's spools very well now that I have a 273 cubic inch engine bolted to it, but because I only have an internal wastegate, my car is useless in a street race. The much better / more versatile external wastegate would cure that problem.
BEATAV8
The Engine Whisperer
- Joined
- Feb 14, 2002
Using a turbosmart iwg actuator and a MAC valve, I've been successful at calibrating internal gates for flex fuel setups that can run low boost for gasoline and high boost for E85 using only the duty cycle from the ECU for control. This particular car was able to run close to 30psi using the same hardware that ran as low as 11.8psi. This is using the ECUGN boost controller logic, configured to slew closed loop boost targets based on ethanol content. This logic is configurable, and can be based on any number of different inputs besides ethanol content. Gear, VSS, or a hardwired switch for example.
Some snippets from the same car showing the wastegate / boost pressure responding to duty
at 0% boost duty 11.8psi, gasoline
45% and 18.3psi
55% yielding 21.8psi
and at 67% boost duty 24.5psi on E85 (sorry about the tire spin)
Some snippets from the same car showing the wastegate / boost pressure responding to duty
at 0% boost duty 11.8psi, gasoline
45% and 18.3psi
55% yielding 21.8psi
and at 67% boost duty 24.5psi on E85 (sorry about the tire spin)
- Joined
- May 25, 2001
