TR Custom Parts
Mark Hueffman - Owner
- Joined
- May 25, 2001
Starting to miss my old TA49 setup........ 6262 ball bearing billet turbo, running one of the downpipes I sell with a 38mm external gate. This setup worked fine with the 49 but can't keep the boost down with the 6262.
Don't want to hear about porting the wastegate hole in the exhaust housing, been there done that. The hole is matched to the pipe that leads to the wastegate. More than 1.25"! Now before someone puts down the gate we sell, I threw a Turbosmart 38mm gate on it to take that out of the equation. Absolutely no difference.
I have gone back and forth between the traditional Turbonetics "air regulator" type of controller plumbed up like the diagram I attached and Turbonetics little billet boost controller that is plumbed with a vented setup per their instructions.
The billet one has a bleed hole on it that supposedly bleeds off boost at higher rpms. I seem to have a little better luck using that one but have to have the knob turned just about all the way out to keep boost below 25lbs.
The thing that scares me about the billet boost controller is there is nothing that would prevent the knob from backing all the way out with vibration. There is a little spring loaded rod that is designed to keep that from happening but I don't trust it.
Will going to a bigger wastegate help or am I really limited by the size of the hole in the turbo exhaust housing? Is it time to go off the headers with the piping to the wastegate?
On the traditional Turbonetics controller, can I drill a bleed hole in one of the plugs in the side of it? Dumb question but just wondering. 6262 is a great turbo just need to reign it in a bit! Thank God for Razors alky system.:biggrin:
Don't want to hear about porting the wastegate hole in the exhaust housing, been there done that. The hole is matched to the pipe that leads to the wastegate. More than 1.25"! Now before someone puts down the gate we sell, I threw a Turbosmart 38mm gate on it to take that out of the equation. Absolutely no difference.
I have gone back and forth between the traditional Turbonetics "air regulator" type of controller plumbed up like the diagram I attached and Turbonetics little billet boost controller that is plumbed with a vented setup per their instructions.
The billet one has a bleed hole on it that supposedly bleeds off boost at higher rpms. I seem to have a little better luck using that one but have to have the knob turned just about all the way out to keep boost below 25lbs.
The thing that scares me about the billet boost controller is there is nothing that would prevent the knob from backing all the way out with vibration. There is a little spring loaded rod that is designed to keep that from happening but I don't trust it.
Will going to a bigger wastegate help or am I really limited by the size of the hole in the turbo exhaust housing? Is it time to go off the headers with the piping to the wastegate?
On the traditional Turbonetics controller, can I drill a bleed hole in one of the plugs in the side of it? Dumb question but just wondering. 6262 is a great turbo just need to reign it in a bit! Thank God for Razors alky system.:biggrin: