How high is too high?
05-31-2010, 06:50 PM
#16
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I have had my head off recently, pistons looked perfect. I always peg my pyro, and have towed at 1300-1350 for 10ish minutes straight with the timing advanced. Food for thought.
05-31-2010, 08:07 PM
#17
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My wastegate is in the stock position. Still connected. I did reclock the center section. I have the solenoid hooked up to 12 volt key power, the other wire is grounded to the battery.
05-31-2010, 08:11 PM
#18
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a friend of mine tows up to 25k with his 600 horse 04 CR everyday, or almost everyday and he runs between 1000-1300 all day long and it runs like a champ except he had a motor replaced a year ago cuz of 1.5 million miles. he use to do hot shottin' .ive ran my truck at 1100+ for a half hour straight pullin 15k up the passes around here. lowest it got was 850 and the highest was 1300 for 10 minutes. and my timing is advanced to the head and soon to be + a tooth also
05-31-2010, 09:45 PM
#19
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so what boost you hittin? I've noticed on my HE351, it cools much better with the wastegate turnbuckled shut with my setup.
06-01-2010, 06:48 AM
#20
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I had a 96 5 speed truck with a #10 plate and 370's and it would peg the gauge before you got out of 1st. I aways ran fine never had any problems with it. I ran it that way for 3 years peggin the gauge a least 3 times a week, offen more. I dont recomend this, the truck was a beater and I wont do that to either of the trucks I have now.
On a side note, could be related to the egt problem that truck had. It had some serious blow by. Im about 85% it was from the high egts cause when I got the truck and it was stock it hardly had any. When I sold it it would burn a gallon of oil between oil changes.
On a side note, could be related to the egt problem that truck had. It had some serious blow by. Im about 85% it was from the high egts cause when I got the truck and it was stock it hardly had any. When I sold it it would burn a gallon of oil between oil changes.
06-01-2010, 11:25 AM
#21
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06-01-2010, 12:19 PM
#22
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If your only hittin that much boost, then I would plug the wastegate off, I'm surprised how well these turbos cool between 30 and 38 lbs. It will run cooler with that wastegate shut. I can hit 40 lbs with mine shut so i just be careful...
06-01-2010, 08:53 PM
#23
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Is your head studded. How much boost would you go without?
06-02-2010, 03:11 PM
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I dont have head studs or nothin, haven't even touched the head bolts. I can put a J-hook spring on mine and let the wastegate open off drive pressure if I want, I can adjust it and had it open at about 34, but it cools better with it shut when you have it hammered for a while. I think you'll be safe, I'd shut it and see how high you can get it, if its under 38 you should be fine.
06-03-2010, 06:13 PM
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I tried the hose clamp on the boost signal line today. I did get more boost, around 38-40. Gauge seemed to bounce a little. Temp was down, how ever it was very cool, and damp out. Only 66 deg. out instead of 85 and humid. I'm going to get a bigger air filter. Should let more air through.
Last edited by dkimmel; 06-03-2010 at 06:17 PM. Reason: found better picture
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