big-phil Posted July 7, 2010 Author Share Posted July 7, 2010 (edited) I have a fully ported head, Isky turbo cam (pulls to 7K) 3in intercooler pipe, 90mm throttle bodie, custum lonewolf intake with hudge runners, stock lower end. Tony it is a little peaky, Full boost is in the 4's where as in the 3's with the .63 but the creep was terrible? I just dont think I could go back to the .63 look at the boost creep i had with it. WATCH AT 3:40 tHAT WAS WITH THE .63 creeped to almost 25 lbs with a setting of 14-15 Edited July 7, 2010 by big-phil Quote Link to comment Share on other sites More sharing options...
Pyro Posted July 7, 2010 Share Posted July 7, 2010 (edited) I would run the 0.63 also. but use a stage 5 turbine setup. you should get full boost by 3500 which will work nice with a 7000 rpm redline. creep is normally caused by a wastegate problem or a wastegate that doesn't flow enough. I had a creep issue until I increased the size of the stock wastegate hole and smoothed out the edges leading up to the exit hole inside the turbine. what wastegate are you using? I also had a recent spark plug issue on my turbo. Ended up being caused by loose spark plugs. I wasted lots of time and energy trying to find that problem. Champion spark plugs work very nice on L28's. Edited July 7, 2010 by Pyro Quote Link to comment Share on other sites More sharing options...
TimZ Posted July 7, 2010 Share Posted July 7, 2010 (edited) but with the .63 on there i have uncontrolible boost creep. Like it was so tight it was chocking the exhaust from coming out? Now with the .82 i have about 3-4 lbs of creep You guys and your tiny ARs... I'm thinking that Phil's more aggressive cam probably likes that larger AR quite a bit better too. Just because you can make boost sooner doesn't necessarily mean that it will make more power. Also - if it's working for you without detonation then don't f with it, but I would've thought you'd be running a bit colder plug with that setup - I'm using the 8 heat range in that plug style... Edited July 7, 2010 by TimZ Quote Link to comment Share on other sites More sharing options...
Pyro Posted July 7, 2010 Share Posted July 7, 2010 I would think a 3500 rpm power band would be ideal, anything less is not correct. but the problem remains even with the 0.82, should not have any creep issues. There is some sort of wastegate issue. I run a t3 turbine, 0.63 with a stage 5 and makes full boost at 3500 and pulls to 6500 with a msa stage 1 turbo cam. no creep issues at all. But wish I would had keep the turbine stock. the power band is a little too short Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted July 8, 2010 Share Posted July 8, 2010 (edited)  Time for a larger external wastegate? Edited July 8, 2010 by cygnusx1 Quote Link to comment Share on other sites More sharing options...
big-phil Posted July 8, 2010 Author Share Posted July 8, 2010 and then...... Quote Link to comment Share on other sites More sharing options...
rossman Posted July 8, 2010 Share Posted July 8, 2010 (edited) Bummer. Let us know how the turbo looks when you tear it apart. Edited July 8, 2010 by rossman Quote Link to comment Share on other sites More sharing options...
jc052685 Posted July 8, 2010 Share Posted July 8, 2010 Not sure coolant can even reach the seals. Quote Link to comment Share on other sites More sharing options...
jacob80 Posted July 8, 2010 Share Posted July 8, 2010 Eh, no biggie, just gotta fix it and move on. Car sounds phenomenal! Quote Link to comment Share on other sites More sharing options...
jc052685 Posted July 8, 2010 Share Posted July 8, 2010 I have a fully ported head, Isky turbo cam (pulls to 7K) 3in intercooler pipe, 90mm throttle bodie, custum lonewolf intake with hudge runners, stock lower end. And what numbers did you lay down? Quote Link to comment Share on other sites More sharing options...
big-phil Posted July 8, 2010 Author Share Posted July 8, 2010 And what numbers did you lay down? this is before cam, port, intake, 90mm tb 388whp 403tq with a big flutter which i know now were the plugs Quote Link to comment Share on other sites More sharing options...
EvilC Posted July 8, 2010 Share Posted July 8, 2010 Another good read and learning. Since I can't see any of the videos until I get home, I will comment/ask questions later. Quote Link to comment Share on other sites More sharing options...
big-phil Posted July 8, 2010 Author Share Posted July 8, 2010 (edited) now im reading that the garrett ball bearing turbo can not be rebuilt. You have to buy a new center cartraige? $300-$500. So now im hoping it is the motor or the head? I have a metal head gasket. I have all the stuff for a fully built L28T, just been waiting for a reason to build it haha Edited July 8, 2010 by big-phil Quote Link to comment Share on other sites More sharing options...
TimZ Posted July 8, 2010 Share Posted July 8, 2010 Not sure coolant can even reach the seals. I'm pretty sure that this is correct - the water just needs to pass through the cooling passages and has no need to be in direct contact with any moving parts. I guess you could have cracked the center section, but I sincerely doubt it. While allowing a cooldown period after hard running is still a good practice, water cooled center sections are much more forgiving about this. I'm thinking I'd be looking at the head gasket - it's a bigger pain in the ass, but probably a lot quicker and cheaper to fix, if that makes you feel any better... Quote Link to comment Share on other sites More sharing options...
S130Z Posted July 8, 2010 Share Posted July 8, 2010 Hey Phil, ever thought of turning the boost down? Run a compression test and see what you find. I'm a little concerned about the temp of your spark plugs, 6 seem way too hot. I would go for at least a 7, but I prefer 8's. Quote Link to comment Share on other sites More sharing options...
Pyro Posted July 8, 2010 Share Posted July 8, 2010 you can run the turbo without water cooling. I have been using mine that way for over 5 years. Majestic Turbo told me I didn't need to use water cooling and I didn't feel like running water lines. Quote Link to comment Share on other sites More sharing options...
goodoldjam Posted July 8, 2010 Share Posted July 8, 2010 With all that oil and coolant leaking, I wonder what kind of milky mixture is in the Radiator if any? Quote Link to comment Share on other sites More sharing options...
big-phil Posted July 8, 2010 Author Share Posted July 8, 2010 With all that oil and coolant leaking, I wonder what kind of milky mixture is in the Radiator if any? the radiator looked good, but the car has not been drivin since seeing the smoke Quote Link to comment Share on other sites More sharing options...
big-phil Posted July 8, 2010 Author Share Posted July 8, 2010 1 Quote Link to comment Share on other sites More sharing options...
Spyder Z 15 Posted July 8, 2010 Share Posted July 8, 2010 (edited) I literrally laughed my ass off. Thanks for that weight loss. "It pulled like...... something that pulls really really hard" Edited July 8, 2010 by Spyder Z 15 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.