110 SW 200TDi cruising speed? - Defender Source
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  #1  
Old April 29th, 2014, 10:49 AM
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110 SW 200TDi cruising speed?

Anyone with 200TDi in 110 SW able to maintain cruising speeds above 70mph? I have a 1:4 transfer case & LT77, factory steel rims & factory-sized tall tires. I was thinking about adding an overdrive, but now am told even that won't do it.

How about an overdrive, a 1:2 transfer case & the enhanced Alisport intercooler for 135hp. Would those 3 changes net a 70+ mph cruising speed, or would I still be still spitting (slowly) in to the wind?

I may have a freshly-rebuilt 1:4 transfer case for sale, btw!
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  #2  
Old April 29th, 2014, 11:12 AM
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If you go 1.2 I would be interested in your 1.4.
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  #3  
Old April 29th, 2014, 11:20 AM
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Do you know which gearbox you have? A serial number will help. There are different 5th gear ratios and that impacts things. If you have the "stock" 200TDI gearbox and 32" tires, you should be at 2950 rpm for 70 mph, which is actually fine. I used to drive around at 3300 rpm all day long.

You will want more than stock power to cruise over 70 mph.

You can go with the 1.2, but it makes first a bit tall for a loaded 110, even with added power. an overdrive or changing 5th gear is an option. But, as said above, it won't help unless you bump up the power. Fuel consumption dives off the deep end at these speeds, so something to keep in mind.
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  #4  
Old April 29th, 2014, 01:13 PM
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Over 70 in mine and the egts start climbing fairly fast...at seventy on flat ground they run at 900~. If you dont have an egt gauge it is time to add one. I have been able to cruise over seventy with no head wind and a rtt without too much trouble. Add a head wind or a climb and forget it...I also have a 200 with lt77s and 1.4
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  #5  
Old April 29th, 2014, 01:33 PM
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Nothing wrong with 900 F for the rest of time. That means the engine is starting to do something. Once you get up to 1200 to 1300, then you are getting to a limit.
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Old April 29th, 2014, 02:15 PM
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I don't know which gearbox I have, but I will look tonight.
It's encouraging that maybe I just have a short 5th gear.

Roving Ryan, do you have a stock 200TDi?
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  #7  
Old April 29th, 2014, 04:01 PM
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I can cruise at 75 mph on the flat with my 110. Top speed is over 80mph. It's a little lighter as it's an exmod soft top, but at that speed wind resistance is the biggest factor anyway. My t-case is 1.4 ratio. The 1.2 box will quiet things down a bit but may actually decrease your top speed, since you won't be developing enough RPM in high gear to create maximum boost.

Unless you have a roof top tent or something, I think if you can't go over 70mph on the flat then you have something wrong with your engine. I'd start by confirming that you're making full boost and that the pressure isn't bleeding off somewhere.
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  #8  
Old April 29th, 2014, 04:09 PM
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Quote:
Originally Posted by meatblanket View Post
since you won't be developing enough RPM in high gear to create maximum boost.
I have not found that. Switching to the 1.2, available power was the same on the highway. Once above 2000 rpm, power is pretty flat up into the mid 3000s.
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  #9  
Old April 29th, 2014, 04:53 PM
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Quote:
Originally Posted by Axel View Post
Anyone with 200TDi in 110 SW able to maintain cruising speeds above 70mph? I have a 1:4 transfer case & LT77, factory steel rims & factory-sized tall tires. I was thinking about adding an overdrive, but now am told even that won't do it.

How about an overdrive, a 1:2 transfer case & the enhanced Alisport intercooler for 135hp. Would those 3 changes net a 70+ mph cruising speed, or would I still be still spitting (slowly) in to the wind?

I may have a freshly-rebuilt 1:4 transfer case for sale, btw!
If you are saying the engine doesn't have the power to attain and sustain 70-75 mph in Alabama with stock size rubber and a 1.4 transfer case something is very wrong with your engines tune/timing.
The truck should easily run 80 unless you have 1500 pounds of bolted on gear and even then it should still run 75 with relative ease.


Are you certain you have a 1.4 ? A 1.6 would have the engine @ a very high rpm @ 65
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  #10  
Old April 29th, 2014, 04:55 PM
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Quote:
Originally Posted by Red90 View Post
I have not found that. Switching to the 1.2, available power was the same on the highway. Once above 2000 rpm, power is pretty flat up into the mid 3000s.


Might be attributable to a tire size difference. I can't recall exactly at what mph I achieve maximum boost with the 1.4 box, but it's at least 65 mph and maybe faster.


I previously had a 1.2 box, and liked it, but I was running the military LT77 with the shorter 1st, 2nd and 5th gears. I was also running 7.50x16 tires. Don't think I would like it as much with the current set up.


I'm still thinking that a 200tdi 110 5dr that is functioning properly should be able to cruise on the flat at >70 mph. Maybe the issue is only with hills, in which case a power increase rather than a gearing change is what is needed.
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  #11  
Old April 29th, 2014, 05:05 PM
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Quote:
Originally Posted by meatblanket View Post


I'm still thinking that a 200tdi 110 5dr that is functioning properly should be able to cruise on the flat at >70 mph. Maybe the issue is only with hills, in which case a power increase rather than a gearing change is what is needed.
Absolutely. Additionally you are in the rockies where the original poster is in a coastal state.
If his sw won't run 75 its not because of the 1.4 tcase.
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  #12  
Old April 29th, 2014, 08:59 PM
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Quote:
Originally Posted by Axel View Post
I don't know which gearbox I have, but I will look tonight. It's encouraging that maybe I just have a short 5th gear. Roving Ryan, do you have a stock 200TDi?
Yes all stock. Stock exhaust stock timing settings fresh belt.
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  #13  
Old April 30th, 2014, 11:47 AM
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Thanks everyone. I'm checking in to this.
By the way, lest you guys continue to consider me an idiot, note that the reason I posted this question is that a reputable vendor had just told me that there was no way a 110 SW with stock 200Tdi could cruise above 70mph, even with more power, a 1:2 case, & overdrive. Considering he was trying to sell me a device to make more power, & for him to them make such an admission (which is much appreciated, I need to also add) I thought it worth checking out in this manner.
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  #14  
Old April 30th, 2014, 01:19 PM
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If it is all in good order, there is no reason you can't do 80, with stock gearing and power. There won't be any power left, so a hill or a head wind will slow you down.

As to the vendor saying you can't go faster with more power, that is just plain stupid to say.
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Old April 30th, 2014, 10:14 PM
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My 200tdi 90 still tops out at around 65mph on flat ground, 1.2 tcase, 31.5" OD tires. This is with a new lift pump, stock boost, timing, etc.

What I really want to figure out is what I need to bribe Doug with so he can make my truck go as fast as his!
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  #16  
Old April 30th, 2014, 10:38 PM
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When I first got mine it could barely get out of its own way. Some adjustments on the smoke screw and i had tons of power. I ended up dialing it back some to compare the smoke under load to a stock tuned 300 with rebuilt pump. Power wise I ended up very similar to the 300 but egts are about 1-200 degrees higher across the board.
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  #17  
Old August 16th, 2016, 03:13 PM
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Quote:
Originally Posted by Uncle Douglas View Post
If you are saying the engine doesn't have the power to attain and sustain 70-75 mph in Alabama with stock size rubber and a 1.4 transfer case something is very wrong with your engines tune/timing.
The truck should easily run 80 unless you have 1500 pounds of bolted on gear and even then it should still run 75 with relative ease.


Are you certain you have a 1.4 ? A 1.6 would have the engine @ a very high rpm @ 65
Any advice on this? 200TDI, 1.4 TCase and it seems 105kmph (65mph) with foot to the floor in 5th is about what it wants to do, I guess if I layed into it for a while I could get it higher but it doesn't feel right. Relatively stock D90. I just feel like it should have more power.

No boost leaks

Idles good, no smoke

When I changed my fuel filter, I pumped the lift pump what seemed like forever and I couldn't get any fuel to come out of the bleed screw. I snugged the bleed screw and it seems fine since.

No idea on injector condition or fuel tuning
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  #18  
Old August 16th, 2016, 03:22 PM
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First check fuel supply is adequate. Disconnect line into injection pump and put in bucket. Disconnect solenoid wire. Crank and you should see lots of fuel coming out.

Second check timing is good.

Last you need a boost gauge and EGT gauge. Check maximum boost and maximum EGT.
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  #19  
Old August 16th, 2016, 03:26 PM
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Quote:
Originally Posted by Red90 View Post
First check fuel supply is adequate. Disconnect line into injection pump and put in bucket. Disconnect solenoid wire. Crank and you should see lots of fuel coming out.

Second check timing is good.

Last you need a boost gauge and EGT gauge. Check maximum boost and maximum EGT.
Ok ill do the fuel pump check

I have a boost gauge just need to install. I just changed all intercooler hoses so defintely no boost leaks. I hear the wastegate opening too.

Ill get EGT soon.

Is there anything in the fuel tank to check? No in tank filter or pump right? My low fuel light is on continuously, most likely unrelated.
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  #20  
Old August 16th, 2016, 03:30 PM
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Is there anything in the fuel tank to check? No in tank filter or pump right?
There shouldn't be...but it does not hurt to check everything through the fuel system. You never know what someone has done in the past. Is the truck a factory 200TDI?
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