Just got me an early 99 about a year ago. My first diesel. I’ve installed a 4” straight pipe, 6637 wix air filter, pmt1 pcm and a hydra with jelibuilt tunes. Only towed once before the mods and it did pretty well up the 4 lanes heading to shaver lake towing my Jeep. Before I hauled again I got a set of gauges and couldn’t believe how hot I got the EGTs unloaded at WOT. 1300 at about 85mph and it would keep climbing if I didn’t let off. No up pipe leaks, no boost leaks, building about 25lbs of boost. I’ve been doing some research and looks like I’m going to need to get a bigger turbo to get these EGTs to come down. I’ve even tried hydra tunes and they get up to 1300 also. Any other ideas guys? I have a feeling when I go wheeling this weekend I’m gonna have to put it back in stock mode to get up the 4 lane. Please help.
Any tune other than stock is going to build high EGTs, plain and simple. Hell I've passed 1300*s in my OBS BEFORE I installed my Hydra. Just turn the chip down to a somewhat moderate tune. I'm guessing Brian gave you a tow tune, just use it and make sure EGTs aren't over 1250* for a long period of time.
I've been up that 4 lane to shaver about a month ago, towing my toy hauler, it's a b*tch! So I feel ya.
Yeah I got strenuous tow and tow Performance from him. Just wasn’t expecting to get that hot unloaded. Heading up there Friday so we will see how she does.
Put an "01 turbo on my "e99 with a WW2 and all the intake plumbing just to get the bellowed up pipes. With the stock injectors 1100* @ 30# is the highest I have seen. Also 4" straight exhaust and AFE fresh air. Runs much better also.
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