Towing woes
#41
Towing rating and power aren't synonymous. It's more to do with vehicle curb weight, stopping power, and suspension/frame rigidity.
torque at the wheel is anywhere between 20 and 40 percent less than at the flywheel. Disco torque at tires is probably 200ft/lb or less. It is good up to about 2,700 rpm, but the factory converter stall tends to be around 3000 rpm under load, the one dead spot in the torque curve.
torque at the wheel is anywhere between 20 and 40 percent less than at the flywheel. Disco torque at tires is probably 200ft/lb or less. It is good up to about 2,700 rpm, but the factory converter stall tends to be around 3000 rpm under load, the one dead spot in the torque curve.
#42
I have yet to come across any D2 whether V8 or TD5 that has problems towing. IMHO there seems to be another problem somewhere. Admittedly in mine I could have gone faster than 80mph but it then guzzles fuel. It depends what sort of speeds one wants to achieve both uphill and on the level, I reckon there is some problem with the trailer on the overrun brakes causing them to bind. For towing you obviously need torque rather than HP but there is a correlation between HP and torque. A long stroke engine, like the D2, should create sufficient torque to tow a trailer up to the stated weight quite comfortably so all I can imagine is another problem, possibly the trailer braking system, causing the tardiness of the rig. If the D2 is OK without the trailer there should be no problem with the trailer IMO.
1. On a decent grade, with a full tank of gas and no tow vehicle, it will always shift into 3rd to make it.
2. With a 3000 pound trailer, it shifts into 3rd immediately and on a long grade, down to 2nd gear and 38 mph is about the best she can do. On a longer grade she heats up to 210 degrees or so even though I have a 180 tstat.
I don't mind going slow and I love my D2 and don't want to have to change.
Problem is, I'm afraid I'm tearing it up when I tow. Any opinion?
#43
Point taken. But let me describe actual experience. Again it's a 2002 4.0 ltr and engine is good, new heads, timing gear etc etc. I do have a full arb bumper and winch and somewhat larger tires on.
1. On a decent grade, with a full tank of gas and no tow vehicle, it will always shift into 3rd to make it.
2. With a 3000 pound trailer, it shifts into 3rd immediately and on a long grade, down to 2nd gear and 38 mph is about the best she can do. On a longer grade she heats up to 210 degrees or so even though I have a 180 tstat.
I don't mind going slow and I love my D2 and don't want to have to change.
Problem is, I'm afraid I'm tearing it up when I tow. Any opinion?
1. On a decent grade, with a full tank of gas and no tow vehicle, it will always shift into 3rd to make it.
2. With a 3000 pound trailer, it shifts into 3rd immediately and on a long grade, down to 2nd gear and 38 mph is about the best she can do. On a longer grade she heats up to 210 degrees or so even though I have a 180 tstat.
I don't mind going slow and I love my D2 and don't want to have to change.
Problem is, I'm afraid I'm tearing it up when I tow. Any opinion?
PS: before making any decisions do a spreadsheet of the pro's and con's with costed options which may help with any decisions and then find out the real costs as everyone is usually more optimistic when making decisions.
Last edited by OffroadFrance; 07-02-2017 at 12:46 PM.
Thread
Thread Starter
Forum
Replies
Last Post