FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
|
Pontiac - Boost Turbo, supercharged, Nitrous, EFI & other Power Adders discussed here. |
Reply |
|
Thread Tools | Display Modes |
#21
|
|||
|
|||
Charlie a bigger gate(if needed) could help bypass excess pressure pre-turbine and help allow you to maintain small A/R for response. taking pressure readings across the gate then the turbine is probably best way to determine if a bigger gate may help. Gate placement can have effects here as well. Also for certain going to a larger ID pipe wont hurt. Exhaust will like as big an expansion it can get when it initially exits the turbine.
|
#22
|
||||
|
||||
Quote:
I have a couple of new videos too....
__________________
My Half AN Injun..... Last edited by charlie66; 04-10-2016 at 03:25 PM. |
#23
|
||||
|
||||
Thanks! and you're welcome. Ill post the numbers with the bigger A/R too...
__________________
My Half AN Injun..... |
#24
|
||||
|
||||
Quote:
As for what size throttle body , I guess after I check the pressure differential before and after the cooler ill figure what size I with need right? Thanks for you're kind words Tom. It means a lot coming from you. You kept me in check the whole way on this build. One of the biggest things I learned from you is keeping the timing, A/F ratio and air temp in line. Those three things alone are the key in making a motor live...
__________________
My Half AN Injun..... |
#25
|
||||
|
||||
Quote:
__________________
My Half AN Injun..... |
#26
|
||||
|
||||
Cool to see all the power your 4 cylinder is making, always a challenge to figure out what the next hold up is.
Congrats on the great numbers and getting the engine to live at those boost numbers, no easy adventure! How big is your cam? and how many rpm are you running? |
#27
|
||||
|
||||
Quote:
I really like your car man. Very cool! Cam is 580 lift 251 @ .050 114 degreed to 110 I have found keeping it under 6500 it will live. I cracked 2 cranks over the summer revving to 7200. I revved it that high because that's where it wants to go, but The old cast crank disagrees big time.. So far so good with the 6500. Time will tell. I keep looking at the oil filter and no debris so far to date..
__________________
My Half AN Injun..... |
#28
|
||||
|
||||
Quote:
Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#29
|
||||
|
||||
What head are you running?
How do you keep a gasket in there? What timing and A/F? |
#30
|
||||
|
||||
Quote:
At first I thought the cranks cracked because of the power. Then I realized later after the second crank cracked that I had to sneak up on the rpms and really take another chance to see if it was the power or was I just spinning it too high. So far I have run it @ 40 psi but under 6500 rpms. Spinning it to 7000-7200 was just plain stupid on my behalf. I only did it because it went there in seconds and seemed to like it there... Moldex wants 4500 bucks for a steel crank. I wish I had the cash but ill have to stick with the lower rpms I guess.. I really would love to get a billet wheel turbo and make more power...
__________________
My Half AN Injun..... |
#31
|
||||
|
||||
Quote:
At first I was having lots of problems crushing the bolt towers on the exhaust side. Then I had seel sleeves pressed in. Ever since the it fine. I used to have water spraying out of the radiator even at 15 psi because it was losing its clamping force. Now even at 40 it never does it. Its a cometic 3 layer gasket and it works great. I don't copper spray it either.. They told me put it on dry.. I have the timing set at 23 for 40 psi and 24 for 30 and 34. A/F is set for .80 Lambda which is 11.76 A/F i use e85 for fuel....
__________________
My Half AN Injun..... |
#32
|
||||
|
||||
Charlie, isn't the car going to be featured in a magazine soon? If you want to borrow my turbo to try it let me know. I still got some work to do to get it back together.
Car is bad ass for sure! |
#33
|
||||
|
||||
I forgot I am T6 you are T4!
|
#34
|
||||
|
||||
I believe that Turbonetics makes a T-80 Housing now with a T-4 frame size that uses billet wheel parts.
Mid frame turbochargers are the absolute largest units with T4 flange! Featuring Turbonetics Ceramic Ball Bearing as a standard equipment, Mid frame turbochargers will meet and exceed the needs of high horsepower racers and crazy street applications! 1.14 exhaust housing and I believe a billet wheel offered. Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#35
|
||||
|
||||
Quote:
Hoping mine does better, I will now have the insert washers and my last set of Cometic's I did spray with copper and the results were worse then dry so that's what I will be doing this time. Guess I am leaving a bunch on the table with 21 degrees at 21 psi and low 11's for A/F but I don't rev past about 5500 so I send more time near the torque peak. |
#36
|
||||
|
||||
Quote:
lean it out a little and see what happens! |
#37
|
||||
|
||||
If Charlie had 8 cylinders he would be in the 7's
|
#38
|
||||
|
||||
It sounds like you know Charlie well! He will push the limit of anything he builds.
|
#39
|
||||
|
||||
Quote:
That would be cool . But like you said its a t6 flange . Thanks for the offer
__________________
My Half AN Injun..... |
#40
|
||||
|
||||
Quote:
__________________
My Half AN Injun..... |
Reply |
|
|