Over stressing engine?
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R1 Indy

Original Poster:

4,480 posts

205 months

Wednesday 9th May 2012
quotequote all
I was towing my kit car for the first time today, but noticed there was a serious lack of power, in particular going up hill. When i put my foot down, i can hear the turbo spooling up, but it takes ages for it to really get up to any real speed.

My tow car is an alfa 159 1.9D (150 BHP)

The car weighs around 1500KG, and trailer/car weight about another 1500 KG, so around 3Ton in total.

Is this a bit too much weight to be putting through a small engine? Will it do it any damage? or wear out the turbo Etc much quicker.

It does tow nicely once up to speed, but just a little worried if I'm overdoing the engine?

McHaggis

57,656 posts

177 months

Wednesday 9th May 2012
quotequote all
What does the owners manual say about tow weights?

Edit to add, limit is 1500kg for those so right at the limit?

Edited by McHaggis on Wednesday 9th May 21:14

mike9009

9,455 posts

265 months

Wednesday 9th May 2012
quotequote all
McHaggis said:
What does the owners manual say about tow weights?

Edit to add, limit is 1500kg for those so right at the limit?

Edited by McHaggis on Wednesday 9th May 21:14
I don't think he should be towing 3 Tonnes with a limit of 1500Kg. To the OP, the risk would be far too great for me to be towing that with your Alfa. It is not primarily about the engine capability, but the safety of having such a weight behind that vehicle.

Mike

R1 Indy

Original Poster:

4,480 posts

205 months

Wednesday 9th May 2012
quotequote all
Just checked, and yes the max towing weight is 1500KG, so should technical be ok.


Mike, Its only 1500KG thats actually being towed. The 3000KG comes from Towcar (1500KG), and trailer with car on (1500KG), so the weight distribution should be fine.


mike9009

9,455 posts

265 months

Wednesday 9th May 2012
quotequote all
R1 Indy said:
Just checked, and yes the max towing weight is 1500KG, so should technical be ok.


Mike, Its only 1500KG thats actually being towed. The 3000KG comes from Towcar (1500KG), and trailer with car on (1500KG), so the weight distribution should be fine.
Oops completely misread ops post.... Ignore me.


VR46

289 posts

165 months

Wednesday 9th May 2012
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I'd try and borrow or hire a 4x4 like a L200.

Matthen

1,413 posts

173 months

Wednesday 9th May 2012
quotequote all
The engine was probably struggling yes, we had similar symptoms in the Multipla (Same engine) when we filled it to virtually Max laden weight on the way back from Dover smile. Climbing the hills on the motorway, foot flat, we could just about maintain 60 mph.

Do you tow often? - If so, i'd borrow a bigger car, because the extra weight on the drive train will wear the clutch + flywheel out more quickly at the very least, and possibly the rear suspension as well.

Edited by Matthen on Wednesday 9th May 22:05

littlebasher

3,915 posts

193 months

Wednesday 9th May 2012
quotequote all
I've got a remapped version of that Engine in my Saab.

When pulling my Caravan (1500kgs), it doesn't struggle at all going up hills plus the car is Auto and weighs more than yours!

You're down on power sir...Are the swirl flaps still working?

littlebasher

3,915 posts

193 months

Wednesday 9th May 2012
quotequote all
Matthen said:
The engine was probably struggling yes, we had similar symptoms in the Multipla (Same engine) when we filled it to virtually Max laden weight on the way back from Dover smile. Climbing the hills on the motorway, foot flat, we could just about maintain 60 mph.

Do you tow often? - If so, i'd borrow a bigger car, because the extra weight on the drive train will wear the clutch + flywheel out more quickly at the very least, and possibly the rear suspension as well.

Edited by Matthen on Wednesday 9th May 22:05
IIRC, the Multipla used either the JTD (115bhp) or the Multijet (120bhp). It never came with the 150bhp 16V unit.

Willy Nilly

12,511 posts

189 months

Wednesday 9th May 2012
quotequote all
OP, your twice the weight as normal, but you are also just inside your towing limit and the ambient temperature is low, so you shouldn't over heat. You do have 150hp and are only grossing 3 tonnes. Just go steady.

HustleRussell

26,036 posts

182 months

Wednesday 9th May 2012
quotequote all
I have to say a 1.9 turbo diesel shouldn't struggle with that. My mondeo (130bhp, 265ft.lb) regularly tows 900kg with a boot full in the car etc, total weigh not far off your 3T. Once at speed I use 6th gear except for on the steepest hills.
Use 500-800 more revvs than you usually would. Don't let it fall off boost. Personally I have upped my towing speed so I can be on boost in 6th.

Matthen

1,413 posts

173 months

Wednesday 9th May 2012
quotequote all
littlebasher said:
IIRC, the Multipla used either the JTD (115bhp) or the Multijet (120bhp). It never came with the 150bhp 16V unit.
True, missed the 150 hp, guess thats the product of the Scotch getmecoat

HustleRussell

26,036 posts

182 months

Wednesday 9th May 2012
quotequote all
By the way, once you have moved off, avoid slipping the clutch altogether. Rev the engine past your usual shift point to give yourself time to perform a leisurely shift and get the clutch re-engaged before engine revvs have fallen too low. Don't go down through the gears when decelerating either.

kambites

70,465 posts

243 months

Wednesday 9th May 2012
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The engine should be fine as long as you don't labour it. The clutch might object, though.

147GTA

290 posts

225 months

Wednesday 9th May 2012
quotequote all
Matthen said:
True, missed the 150 hp, guess thats the product of the Scotch getmecoat
A standard Multipla will struggle to accelerate up a flyover with just a driver!

A remap however will give you 150+bhp with 240+ftlbs of torque...

cruise control

64 posts

179 months

Wednesday 9th May 2012
quotequote all
I have had a few 1.9tdi passats and they all towed our caravan with ease car weight 1690kg caravan at the time 1450kg.

just got the new 2.0tdi 140 bluemotion and even with just 5000 miles on the clock it pulls like a train in 6th at anything over 55mph. just had a long weekend in cornwall with the family in the caravan and, we joined the m6 at jct 18 and got into 6th and the first time we changed down to 5th was when we left the M5 at junction 30 to join the a30. the current caravan is bigger and heavier at 1725kg. economy is better than the previous model at average 38mpg towing.

TheAlfaMale

629 posts

170 months

Wednesday 9th May 2012
quotequote all
Try without the load. My old Croma had the exact same engine in it and I had that problem twice. First time it was the EGR -£500 for the warrant company to pay. Second time it was a split hose - £20 for me to pay. For the split hose it was a gradual loss in power until the EML came on. EGR was rather more sudden! I also had slight losses in power after long periods of using low revs, such as after the long period of icy weather we had a couple if years ago. The resolution to this was a good hoon, using one gear lower than you normally would.

To up the power output a little I shoved a K&N air filter on. Just a direct replacement one for the OEM one, rather than new air box etc.

Good engine, though. I realised that when I came to look for a replacement. I ended up with an Alfa 147 with a strangely familiar engine in it... wink just with 20bhp more. evil

PlankWithANailIn

439 posts

171 months

Wednesday 9th May 2012
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Your doing fine, just give it more gas! If you struggle up hill it just means you didn't give it the beans on the downhill stretches.

McSam

6,753 posts

197 months

Wednesday 9th May 2012
quotequote all
Engines don't "struggle". Having to use more throttle because you're towing isn't going to cause any problems at all for a well-maintained engine, often quite the reverse!

Zed 44

1,290 posts

178 months

Wednesday 9th May 2012
quotequote all
HustleRussell said:
I have to say a 1.9 turbo diesel shouldn't struggle with that. My mondeo (130bhp, 265ft.lb) regularly tows 900kg with a boot full in the car etc, total weigh not far off your 3T. Once at speed I use 6th gear except for on the steepest hills.
Use 500-800 more revvs than you usually would. Don't let it fall off boost. Personally I have upped my towing speed so I can be on boost in 6th.
+1. I had a 2.0 TDci Mondeo towing a 1500kg caravan and most of the time I hardly knew it was there.