Turbo's and turbo related parts | Forum profile

Quote: Originally Posted by DonWG Trying to cross the finish at 145 mph at 6300 rpm is going to demand some gear and/or tire, a tight T/C, and to pull that gear a lot of cylinder pressure. On a stock block? Yikes. Pushing the point of peak cylinder pressure up higher is a good move as far as durability. Did you say that you're going to be using nos to spool up? What size is the compressor side? Realize that a tight T/C is going to give...

Will do ... wish yall could have made a pass down the track.

Quote: Originally Posted by bison He is in the exact opposite situation as i am with his ex housing wheel combo. He can open the ex valve a lot sooner than me and not lose power. The cam specs seem to remain secret once guys cross over the 140mph barrier with a 3 bolt. Probably for good reason too. If you haven't read Donnies thread called "advancement of fuel" (paraphrased) in the Alky section you might want to Brian....

Scott.... I'm also not doubting you ran that time you ran at all..... it is what it is...... I was agreeing and adding to what others had said that there is a potential issue with your boost gauge. I also would rather not see someone have the issue you have.... to drop another bullet in there... and do a repeat.... I love these new turbos.... but at my ET target (bottom 10's) I already have a 70 P trim that can get there when...

Quote: Originally Posted by SloGN guys what are the actual wheel sizes in the GT 61-52e? this turbo is a few yrs old. what is it good for in actual real world HP. TIA Precision E series compressor cover. 61.4 mm inducer, 82mm exducer, GT35R compressor wheel. 2.759" inducer, 2.437" exducer, Garrett T-350 turbine wheel. This turbo is rated to support 630 flywheel hp. It has pushed full weight Turbo Buicks into the low...

Quote: Originally Posted by bison Highest g-forces are at the flash stall speed which is 5500@26psi. It will probably gain a couple hundred rpm at 28-30psi. That will become the new peak torque. Lifters are zero lashed. By the time they the engine is in 3rd they may actually have a tiny bit of lash from the heat expansion. I can hear them after making a pass. I plan on shifting at 6100-6200 and crossing at 6300 or so depending on the tire. I...

I hope I am not a bad person... Anyway are you lying if what you saying you believe to be true?

Quote: Originally Posted by 2QUICK2B6 This turbo has the H cover..... Who knows I might be lying abt that too! Here is the video YouTube - tta299's Channel Please don't take offense to anything I've said Scott. I don't doubt that you ran the time and I'm sure your gauge did say 18#. I was refering to the aspect ratio (A/R) of your exhaust housing. I do have to agree with Bison that with no data to validate, it simply...

Quote: Originally Posted by bison Exactly but if the surface area exposed to the pressure is greater than it will take less pressure to push it open. yes, but that's just the releif point like a stiff vs weak spring. It's a reslult of backpressure not a cause

Quote: Originally Posted by tom j Where is the best spot to take a back pressure reading? I have a port just past my DP would that work? Or does it have to be before the turbo? Happy Turkey Day! Tom, While both pre- and post-turbo pressures are important measures, this thread is really discussing pre-turbo pressures, so before the turbo. What I would really like to see are 5 pressure measures, and temps . . . LOL! Pre-Compressor Post...