dazed and confused

Hello all, I have a 1994 249cc rr diesel. I am interested in remapping her or a tuning box. I am fed up of little scrotums on their mopeds overtaking me grrrr. I know there are lots of threads offering sound advice on here, but I cant warrant £400 + on a remap. Reidy remaps have a deal on at the moment so was wondering if anyone could give me advice as to what road to take. Am sorry to bore you all with this type of question but am fed up of driving her in pensioner mode.

Check out the chipping a diesel threads, much discussion on the various chips and approaches for the P38. Is yours a P38 or RRC?
I' not sure there is a whole pile you can do with the 300tdi bar a bigger intercooler and turning up the boost a little.

Thanks SpudH, its a classic, I will read through the threads again. I did look into getting a bigger intercooler, but again, big bucks. I have just been laid off work so have to be thrifty with the pennies for now. Will do a bit more research and keep an open mind for the moment.

DW Manual boost control valve or aka Dawes device. for about £10 it will give you the power you lack at a price you can afford google it read up about it first

Roveron can supply a a Synergy Vp for this engine.It does need two wires attaching to the injection pump cable but the other connector fits to the map sensor.

It should give 20-25% more torque and costs £164.75 inc vat & delivery.
Thanks Dopey, The dawes device sounds a bit dodgy if you have the boost set too high. For the moment, I think my options will be the synergy vp.
Once I have it fitted, I will let you know how she runs.
Cant wait to get revenge on them pesky kids.

I just checked out the synergy site.
I'm not sure you can do the 300tdi this way. They have the discovery listed as the BMW engine which it is not. The Disco 2 had the TD5 engine which is tunable with a plug in chip but i don't think the disco 1 was ever tunable this way. I'm not 100% sure on this but I think the 300tdi is a mechanical pump. If so then it can't be tuned with a chip as there is no ECU as such. I had a 200tdi RRC and I know all you could do was up the boost pressure or fit a bigger intercooler.
Check out www.diselbob.co.uk or Jeremy Fearn. Both of these guys are reliable diesel tuners.

Thanks SpudH,
Have had an e-mail from reidy remaps, he assures me he can remap the unit for £220.
Roveron has said the unit is suitable for the car also.
I think now that I will book her into reidy remaps because I will be there when they do it, and if I dont get a reasonable increase in bhp, I wont pay them.
Well, its in the lap of the gods really, am still dazed and confused.
Have looked into the bigger intercooler, and allisport will do me one for £350 fitted. Again, will look into that when funds are in greater supply.

Have looked into the bigger intercooler, and allisport will do me one for £350 fitted

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Thats exactly what i did well worth the spend, they know what they are doing too, your in good hands, as him to sort the lag out for you while your there, he will pull out some wires for you for free, some anti stall devise that you don't need!!

Well guys, shes booked in to reidy remaps of yeovil for next week, will keep you posted on how she comes back. As I said, If I dont see a dramatic improvement, I will put the money towards the bigger intercooler and as you said Dopey, will ask them to sort the lag out. I spoke to Richard from allisport who said he can adjust the fuel pump and regulate the turbo to compensate which would also see a dramatic improvement. I just dont know why these larger intercoolers were not fitted as standard by land rover when they made the bloody cars.
Anyway, thanks for all your help guys, will let you know when shes done.

davejem said:

Hello all, I have a 1994 249cc rr diesel. I am interested in remapping her or a tuning box. I am fed up of little scrotums on their mopeds overtaking me grrrr. I know there are lots of threads offering sound advice on here, but I cant warrant £400 + on a remap. Reidy remaps have a deal on at the moment so was wondering if anyone could give me advice as to what road to take. Am sorry to bore you all with this type of question but am fed up of driving her in pensioner mode.

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I take it this is a 200 or 300 TDI motor. You cannot remap this unit, it has a mechanical pump. If the pump is tired you can get a little extra from it by increasing the fuel. Look at the back of the pump, you should see a black plastic anti tamper cover about 12 mm in diameter. Take a screwdriver and lever it off. Under that you will see a hexigon adjuster with a screwdiver slot in it. Take a 13 mm spanner and undo the lock nut. With engine running it is best to use a 1/4 ratchet with suitable socket on small hexigon. (Screwdriver slips off with vibration). Screw adjuster in until engine speeds up only about 1/4 to 1/2 turn (anymore will give black smoke). Adjust tickover back to 750, and there you go. You should feel a power increase straight away.

249cc is a bit small to pull 2.5 tons of RR! You might try something ten times the size.

davejem said:

Well guys, shes booked in to reidy remaps of yeovil for next week, will keep you posted on how she comes back. As I said, If I dont see a dramatic improvement, I will put the money towards the bigger intercooler and as you said Dopey, will ask them to sort the lag out. I spoke to Richard from allisport who said he can adjust the fuel pump and regulate the turbo to compensate which would also see a dramatic improvement. I just dont know why these larger intercoolers were not fitted as standard by land rover when they made the bloody cars.
Anyway, thanks for all your help guys, will let you know when shes done.

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You are going to be paying lots of gold bricks out for something you can do yourself in twenty minutes. Firstly with engine running squeeze turbo pipe with your thumb and first finger. It should be reasonably easy to press in. Rev engine, pipe should expand and push your fingers back. This shows you have turbo pressure. Next rev engine and watch the lever on the turbo bypass valve. At max revs this should move to open valve and bypass turbo, this means you have good turbo pressure. Turbo pressure is increased by taking coupler off, undoing lock nut and shortening actuation rod just one turn no more. No matter how much turbo pressure you have it is no good unless the fuel is metered correctly and you are getting an increase in fuel as the pressure builds. If the pump is a little tired (common problem with these motors) carry out the preceedure as outlined in my other post. It should give you a dramatic increase in power. Only real cure though is to have pump refurbished. Basically what you are doing is increasing the fuel flow to make up for all the leakages caused by internal worn parts.

Thanks Wammers, sound advice. Am going to get allisport to put on a bigger intercooler and let them make all the adjustments you have just mentioned. I have just been to allisport and they said the same as you. I would be wasting my money. So, change of plan again to allisport now. You can see why I am dazed and confused.

davejem said:

Thanks Wammers, sound advice. Am going to get allisport to put on a bigger intercooler and let them make all the adjustments you have just mentioned. I have just been to allisport and they said the same as you. I would be wasting my money. So, change of plan again to allisport now. You can see why I am dazed and confused.

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Personally i would spend the money on a refurbished pump rather than an intercooler. All your money is being spent trying to correct a worn pump after you have spent it all, your pump will still be worn. Unless you are thrashing the motor constantly a larger intercooler will not help you much. Clean out the one you have with some Acetone. That would make a difference. Good luck.

This is the e-mail I have just had from allisport, the price has gone up dramatically now, so will not be using their services.

We offer various tuning packages comprising of two stages of uprated intercooler, both designed and built by ourselves and an electronic tuning system.

Our electronic Tuning Module is wired into the loom externally and can be adjusted to match either a standard vehicle or one with a modified intercooler. These wire-in units provide good results and are a simple solution suitable for installation in our workshops or they can be supplied with fitting instructions. The tuning module can be used on it’s own to provide 15-18% more power and torque for £360+vat or we can adjust the fuelling to suit our uprated intercoolers packages.

The first intercooler option is an improved version of the original intercooler which we re-core with a more efficient high spec vacuum brazed and TIG welded core. We require an exchange intercooler.

The second intercooler option is much larger and needs a little modification so we release some extra space for the intercooler by switching the position of the oil cooler and intercooler in front of the rad. This allows the intercooler space to extend down between the chassis
rails. This kit allows power gains of up to 40% or 190 bhp from 136 with suitable tuning.

The benefits of the option 1 re-cored intercooler and module tuning package is a 30% increase in power and torque and a full 40% with the second, larger intercooler option.

These increases tend to be in the lower and mid-range revs with improved acceleration, throttle response and an improvement in economy. Intercooler and tuning module packages are £640 + vat for option 1 or £745+vat for the second intercooler package option.

We offer free fitting for our tuning packages including a diagnostic check before modification.
It is also worth considering a better air filter – we use and recommend I.T.G elements which are designed to fit directly into the original housing and cost £50.

davejem said:

This is the e-mail I have just had from allisport, the price has gone up dramatically now, so will not be using their services.

We offer various tuning packages comprising of two stages of uprated intercooler, both designed and built by ourselves and an electronic tuning system.

Our electronic Tuning Module is wired into the loom externally and can be adjusted to match either a standard vehicle or one with a modified intercooler. These wire-in units provide good results and are a simple solution suitable for installation in our workshops or they can be supplied with fitting instructions. The tuning module can be used on it’s own to provide 15-18% more power and torque for £360+vat or we can adjust the fuelling to suit our uprated intercoolers packages.

The first intercooler option is an improved version of the original intercooler which we re-core with a more efficient high spec vacuum brazed and TIG welded core. We require an exchange intercooler.

The second intercooler option is much larger and needs a little modification so we release some extra space for the intercooler by switching the position of the oil cooler and intercooler in front of the rad. This allows the intercooler space to extend down between the chassis
rails. This kit allows power gains of up to 40% or 190 bhp from 136 with suitable tuning.

The benefits of the option 1 re-cored intercooler and module tuning package is a 30% increase in power and torque and a full 40% with the second, larger intercooler option.

These increases tend to be in the lower and mid-range revs with improved acceleration, throttle response and an improvement in economy. Intercooler and tuning module packages are £640 + vat for option 1 or £745+vat for the second intercooler package option.

We offer free fitting for our tuning packages including a diagnostic check before modification.
It is also worth considering a better air filter – we use and recommend I.T.G elements which are designed to fit directly into the original housing and cost £50.

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I have seen all these go faster tuning options before. If your engine is in top condition maybe they are worth a thought. If like yours seems be, the engine is tired, you are spending good money on something that may knock the bottom end out of it quick time. Much better to do a valve job on it, and whilst you have head off whip out the pistons and bust the bores, fit with a set of new rings and bearings. Have the pump refurbished clean the intercooler and you will be back to a viable engine. It is not a good idea to spend money on adons to mask a worn tired engine or pump. It smacks of the boy racer syndrom were they have a Corsa that burns a pint of oil a day, so they go out and buy a K&N filter and a big bore exhaust and proclaim all is well with their beast.

The cost has gone up A LOT since i did it, and i paid cash in hand (allegedly) so it was cheaper still, but that is now a very big wack of wedge to part with and i for one would think twice about if it was worth the cost, but its your ££ and i don't know how rich or poor you are, so its over to you!!

Well Dopey, I have the cash, but have just been laid off work. I have sent a mail to Andrew at allisport asking how much for cash, Yes its a lot of money but I hope to keep the car for a long time and in that respect its probably worth it. I flushed the intercooler out, blocked of the egr valve, changed filters oil etc, had cam belt done, not made a blind bit of difference. Will wait to hear back from allisport, and as they are not far from me, would hope to have it done this week. will keep you all posted.

davejem said:

I flushed the intercooler out, blocked of the egr valve, changed filters oil etc, had cam belt done, not made a blind bit of difference

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If you've done the above and haven't felt any difference then something's wrong with the engine and it needs sorting first. The difference on my 300Tdi Disco was very noticeable, even more so when the exhaust was changed to de-cat.

Seems to me that the best way to spend your money would be to sort the basics out first before going for more power.

Thanks Paul, I have a land rover mechanic coming to look at her this evening, he thinks the timing might be out where the new cam belt was fitted. Will let him have a look and see what he says.