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Was your head gasket fiber or MLS?
It was MLS. There was nothing wrong with the head gasket though.
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Was your head gasket fiber or MLS?
I’ve been looking at putting an om617 vs 606 in my boat and had heard stories about head issues on the 606 but I have no experience, just internetery research. Any problems with warping head or sealing up the mls?
The 603 was know for cracking heads - late 80's. Mercedes replaced pretty much every 603 head under warranty. If your ever looking at one you can Google it and tell from the casting # on the head if you have a good one. I don't know much about the 606.
How are you liking the gtd2056 turbo? does it spool noticeably faster than the gt(a)2359? ...if you can't tell i still haven't decided on a turbo haha. I believe jav had a gtb?2056, and while saying the spool was good, said he ran into backpressure issues above ~4000rpm. have you had any issues with that?
O wow, sure sounds like the spool is noticeably better. It might be tricky if you cant manually lock your torque converter, but I'd love to see a boost log vs rpm to compare it with those ones I took with the kkk turbo.It's actually a GTD2060VZ (little bit bigger compressor). It's generally comparable to the 2359 but a little better in every category. GTD is a 5th-gen VNT and the GTA is 2nd gen, they really made a lot of improvements since the A and B series. I'm happy with it
It does spool a good bit faster than the 2359. 1900 RPM vs 2300 or so. There's definitely more boost available below the main boost threshold too.
It's not so much that I'm having back pressure issues at high RPM, it's just a matter of nozzle area limits in the turbo. Don't expect any turbo (that's sized well for the engine) to hold boost all the way to redline. You have to de-rate the boost target toward redline or you'll just be needlessly choking the turbine down trying to reach a boost pressure that's off the compressor map. I've changed my shift points to keep WOT operation below 4500 RPM anyway.
Do you think it would be easy to alter your adapter for an AW4 auto in the Jeep?
Ok gotcha. I do know that the AW4 is identical to the Toyota A340.It probably has a different bell housing, so it would end up just being a whole new design. Maybe the bell housings can be swapped but I don't know from experience.
Seems to be a little lazy. You should get your pump tuned properly. The same engine in G-Wagon:
Actually his G wagon is running the 722.6 transmission with paddle shifters. His turbo is able to spool quickly through the use of his quick spool valve.Yeah, I've seen this little truck, pretty sweet. I'm sure my pump could use a refresh as far as timing, and maybe go with bigger elements. But as far as tuning, it's calibrated with near-optimal AFRs. The truck in the video has a manual transmission so it's getting the clutch dumped at 4000 RPM so that huge turbo can spool, so that's one big difference. That vehicle probably weighs 1500 LB less than my 80, and they're at sea level.
Actually his G wagon is running the 722.6 transmission with paddle shifters. His turbo is able to spool quickly through the use of his quick spool valve.