Thread: CAN YOU INCREASE BORE/STROKE ON THE PUMA FOR MORE GRUNT??

Originally Posted by voltron

I have heard there is somebody in sydney who tunes the 2.2. Does anybody know of his name. I don't really understand why it can't be done in Oz otherwise. No doubt they have more experience with the defender and probably more demand in the U.K.

Australia has alot of good tuners in the petrol scene, some say up there with the best but surely there must be someone in Oz that has had a crack. Im not sure I could handle the down time sending the ECU all the way to the U.K. But if that is my only option then I guess that is what will need to be done.

Cheers

Best chance would be Bruce Davis of Davis Performance Landys at Annangrove.

While the tuners were able to swap remaps easily with the earlier engine management modules, the OEM's have taken steps to prevent remapping.

And so far for the module used on the 2.2 the tuners haven't been able to come up with a solution that enables the vehicle owner to swap remaps, put the original map back in when the vehicle goes in for service or warranty, then put the remap back in afterward.

You should be aware that remapping will cause issues for warranty work, and will also cause issues if the dealer reads your module or installs a software update. This wasn't a problem with the 2.4, but is stopping most from doing it to their 2.2's if still in warranty.

Originally Posted by Pickles2

.I'd have been to see him by now!

Out of interest Pickles are you keen to get this done on the new truck? I mean I know all the benefits etc. but as a fellow MY13 owner I'd be very reluctant to do it before my warranty expires.

Can also confirm that 100% load sees the EGR flow go to zero (closed) on the stock motor.

Originally Posted by Lagerfan

Out of interest Pickles are you keen to get this done on the new truck? I mean I know all the benefits etc. but as a fellow MY13 owner I'd be very reluctant to do it before my warranty expires.

Can also confirm that 100% load sees the EGR flow go to zero (closed) on the stock motor.

No, it'll be a while, if ever, before I touched the engine, but I do like to suss out what's available. In the UK there's squillions of options & expert shops etc, but very few in Aus.
So yes, I do like to know about this stuff, keep up with what's out there etc, so that if I ever did decide to do something, hopefully the knowledge I've gained would help me to get what I want.
Cheers, Pickles.

Originally Posted by Lagerfan

Can also confirm that 100% load sees the EGR flow go to zero (closed) on the stock motor.

I haven't seen the Puma engine code, but every other engine I have shuts the EGR at full throttle.
If it didn't, power and torque would suffer hugely.

Originally Posted by Dougal

If it didn't, power and torque would suffer hugely.

Yes I guess that's exactly what you would expect it to do thinking about it.

So if you blank off the EGR valve without doing a remap, wouldn't that potentially cause problems as the ECU is expecting X amount of EGs and adjusting all its other parameters accordingly? Or do you have to also fool the electronics when blanking? Pardon my ignorance!

Originally Posted by Lagerfan

Yes I guess that's exactly what you would expect it to do thinking about it.

So if you blank off the EGR valve without doing a remap, wouldn't that potentially cause problems as the ECU is expecting X amount of EGs and adjusting all its other parameters accordingly? Or do you have to also fool the electronics when blanking? Pardon my ignorance!

To shut-down the EGR you need to get into the ECU and find the bytes that switch in on/off. It's a job for a sharp tuner. Lots of blunt tuners around who don't know and try flattening maps etc with more work and not as good results.

Blanking it may or may not throw an error code. But once shut-down in the ECU it's closed permanently and doesn't need blanked unless the valve is damaged.

Originally Posted by Dougal

That's certainly true on the TD5. But this thread is about the 2.4 Puma engine which has a GTA2052V variable vane turbo: GARRETT turbos for Land Rover passenger cars and vans - Applications - TurboMaster

Yes I know, I said I meant the variable geometry turbo. Over here the upgrade turbo is called all sorts of different things, by all the different companies who supply.
So I said I left my turbo as standard on my puma engine.

Increase the bore / stroke ?

Well LR decreased one of them going form the 2.4 to 2.2 andthe 2.2 has slightly more power, go figure.


The cheapest solution for you is to drive a Tdi for a while and then get back into the Puma it will feel like a rocket ship !