Toy Hauler ande High EGT's - help.
03-31-2010, 08:30 AM
#46
Thats a normal reading for the Outlook monitor reading fooled MAP voltages from the data port. To validate you need to put a manual gauge on the manifold. If it feels better and you don't have massive amounts of black smoke with higher power actual boost is more than the monitor can see. They are noticeably flat when boost is limited.
03-31-2010, 11:14 AM
#47
Well no manual gauges here. I'd have to drill and tap the intake horn just to check it too. So that's out. I'll have to assume it's working as it should then.
Hopefully, I'll notice a slight drop in EGT's on this weekends tow through the Smokies. I'll take a hard look at the BDTD's tow mode and stock modes as well. I'll try not to get too excited about hitting 1250 before it kicks down a gear and runs 1000-1100 for those long stretches.
Hopefully, I'll notice a slight drop in EGT's on this weekends tow through the Smokies. I'll take a hard look at the BDTD's tow mode and stock modes as well. I'll try not to get too excited about hitting 1250 before it kicks down a gear and runs 1000-1100 for those long stretches.
03-31-2010, 11:21 AM
#48
Well no manual gauges here. I'd have to drill and tap the intake horn just to check it too. So that's out. I'll have to assume it's working as it should then.
Hopefully, I'll notice a slight drop in EGT's on this weekends tow through the Smokies. I'll take a hard look at the BDTD's tow mode and stock modes as well. I'll try not to get too excited about hitting 1250 before it kicks down a gear and runs 1000-1100 for those long stretches.
Hopefully, I'll notice a slight drop in EGT's on this weekends tow through the Smokies. I'll take a hard look at the BDTD's tow mode and stock modes as well. I'll try not to get too excited about hitting 1250 before it kicks down a gear and runs 1000-1100 for those long stretches.
03-31-2010, 12:06 PM
#50
DTR 1st Sergeant
can you explain this? i know that advancing the timing increases cylinder temps but lowers EGTs. are you suggesting higher egts/lower cylinder temps are better towing?
not trying to debate you, i'm asking b/c im always leary towing real heavy but have been told its ok. i run the jr. on 40hp with max timing.
not trying to debate you, i'm asking b/c im always leary towing real heavy but have been told its ok. i run the jr. on 40hp with max timing.
Combustion dwell time in the cylinder increases the temps dramatically, add in more fuel and it ups them some more. These engines will melt a piston at 1250-1300 EGT's with to much timing.
Max timing is for mileage empty, NEVER tow with it. Your looking at a melt down with 40 HP and max timing under the right conditions.
If your seeing the EGT's in the exhaust stream it is not heat soaking the piston.
Max timing is for mileage empty, NEVER tow with it. Your looking at a melt down with 40 HP and max timing under the right conditions.
If your seeing the EGT's in the exhaust stream it is not heat soaking the piston.
03-31-2010, 01:21 PM
#51
Thats as good a back down as any. Just realize that the BDTD is going to throw timing in there along with fuel. Thats the killer when you get into these 3 event systems. Not fine enough control. Chekc and see what the timing advance is with the differnet tunes on the BDTD and you will have a better picture of whats happening.
03-31-2010, 04:16 PM
#55
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Combustion dwell time in the cylinder increases the temps dramatically, add in more fuel and it ups them some more. These engines will melt a piston at 1250-1300 EGT's with to much timing.
Max timing is for mileage empty, NEVER tow with it. Your looking at a melt down with 40 HP and max timing under the right conditions.
If your seeing the EGT's in the exhaust stream it is not heat soaking the piston. The way the 3 events are stretched out and timed the pilots heats things up real good, the main event dumnps more into it, and the 3rd event comes along and splatters the tops of the pistons. Bad juju!
Max timing is for mileage empty, NEVER tow with it. Your looking at a melt down with 40 HP and max timing under the right conditions.
If your seeing the EGT's in the exhaust stream it is not heat soaking the piston. The way the 3 events are stretched out and timed the pilots heats things up real good, the main event dumnps more into it, and the 3rd event comes along and splatters the tops of the pistons. Bad juju!
i don't run program level 2 or 3 because it slips my clutch.
03-31-2010, 04:22 PM
#56
Originally it was TM 1,4,3,2 in order of timing advance. I have not seen what the new version is using so unsure.
Here is what the REVO TNT version is supposedly using. Most likely close to standard REVO but....
#1 12*
#4 16*
#3 18*
#2 21*
04-01-2010, 08:46 AM
#57
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I run stock or 4 depending on weight cuz I am not sure what the timing has been set to on the Smarty REVO. These are suppoesed to be the lowest.
Originally it was TM 1,4,3,2 in order of timing advance. I have not seen what the new version is using so unsure.
Here is what the REVO TNT version is supposedly using. Most likely close to standard REVO but....
#1 12*
#4 16*
#3 18*
#2 21*
Originally it was TM 1,4,3,2 in order of timing advance. I have not seen what the new version is using so unsure.
Here is what the REVO TNT version is supposedly using. Most likely close to standard REVO but....
#1 12*
#4 16*
#3 18*
#2 21*
04-12-2010, 09:29 AM
#58
Well we're back from the Smokies. The trip went fine. Although I could use a transmission cooler or deeper pan if doing that much. I hit 240 once and pulled over for about 10 minutes to let it cool down. It was stop and go in the mountains, near 90 degrees, for hours. There were cars and trucks all over that had overheated. So I wasn't alone. When I'd break the top of a hill, there would be semi's pulled over cooling back down. It was hot...
Put the BDTD in tow mode. The boost fooler and intake horn did the trick. I let the motor lug all the way up to 1200, then I'd pump the peddle a smidge, and it would kick down a gear. If only going 55mph at the time, the EGT's would drop to 1050 and she'd hold 55 all day long then. The trucks a brute for sure. Probably more then the trans can take I'm sure. I ran the CAT scales at 24,020lbs. So I'm over weight for sure, but boy does that motor like it.
Thanks for the tips everyone.
Put the BDTD in tow mode. The boost fooler and intake horn did the trick. I let the motor lug all the way up to 1200, then I'd pump the peddle a smidge, and it would kick down a gear. If only going 55mph at the time, the EGT's would drop to 1050 and she'd hold 55 all day long then. The trucks a brute for sure. Probably more then the trans can take I'm sure. I ran the CAT scales at 24,020lbs. So I'm over weight for sure, but boy does that motor like it.
Thanks for the tips everyone.
04-12-2010, 02:11 PM
#59
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Hmmm.. I just came through the smokie mountains going south 4-1-10 and north 4-11-10 and I scaled at the local farm prior to leaving and wieghed in at 23,360.
My EGTs pulling the long grades would hit 1250 to 1300. I was running 70 MPH at 2,250 RPMs on cruise control.
My Trans temp ran no higher that 190. In stop and go traffic in Atlanta I saw 205 or 210 max.
I had the Smarty set on SW5, wich is 90 HP.
Love this truck, makes driving very easy.
My EGTs pulling the long grades would hit 1250 to 1300. I was running 70 MPH at 2,250 RPMs on cruise control.
My Trans temp ran no higher that 190. In stop and go traffic in Atlanta I saw 205 or 210 max.
I had the Smarty set on SW5, wich is 90 HP.
Love this truck, makes driving very easy.
04-13-2010, 07:00 AM
#60
Yeah mine would hit that too if I let it. I just kicked it down when it got that high. I could then run 55-65 up the hill and not really see past 1050. You're smarty is doing boost fooling. That seems to help quite a bit.
As for the trans temps, you're 48RE is built. Mines stock. Prolly not for long with 24k behind her though I'd guess.
As for the trans temps, you're 48RE is built. Mines stock. Prolly not for long with 24k behind her though I'd guess.
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