what tuning boxes are people using - Page 3

Eloco · 04-09-2015, 02:05

Quote:

Originally Posted by solarman216

not quite right Pete, it is squash it, squirt it, boom,

Rick

If it's not squirted it what is it squashing.

makeitfit · 04-09-2015, 10:45

Quote:

Originally Posted by solarman216

not quite right Pete, it is squash it, squirt it, boom,

Rick

Ah well, the old Trol has 6 cylinders and gets confused

Still can't beat a good squash and squirt session eh

Banshee · 04-09-2015, 10:47

Quote:

Originally Posted by makeitfit

Ah well, the old Trol has 6 cylinders and gets confused

Still can't beat a good squash and squirt session eh

Filthy Pete

solarman216 · 04-09-2015, 11:28

Quote:

Originally Posted by Eloco

If it's not squirted it what is it squashing.

Air, the injection has to be timed precisely or you would get the boom before the piston got high enough in the cylinder and then the boom would try and push it back down again, not what you want, Rick

makeitfit · 04-09-2015, 11:42

Quote:

Originally Posted by solarman216

Air, the injection has to be timed precisely or you would get the boom before the piston got high enough in the cylinder and then the boom would try and push it back down again, not what you want, Rick

I knew that

In my case the AIR has a little LPG added for good measure

Eloco · 04-09-2015, 13:49

Quote:

Originally Posted by solarman216

Air, the injection has to be timed precisely or you would get the boom before the piston got high enough in the cylinder and then the boom would try and push it back down again, not what you want, Rick

So is the fuel injected timing as would be a spark in a petrol engine? My thinking was it was the compression of fuel and air that caused the bang. I don't think I will ever fully understand dirty diesel.

Quite ironic this because if I can't find an air leak and a filter change doesn't stop my engine diesel knocking it's cods off I shall be starting a new thread on diesel timing on Mon.

SNH · 04-09-2015, 16:08

Chris at tunit has a fully refurbished one in stock that he said he'd do me for £174 delivered, saves a few quid over the new one.
I may contact that place at shefield and see what they say though.
Derv doctor quoted me £300 so seems that's the ball park for remapping?

Madmark · 04-09-2015, 17:40

I've just been quoted £516 for tunit 2 if they do second hand at £179 id snatch their hand off

makeitfit · 04-09-2015, 18:11

I bought mine direct from Tunit as a Factory refurb, as did a few others on here. It'll be fine. Go for it

solarman216 · 04-09-2015, 20:06

Quote:

Originally Posted by Eloco

So is the fuel injected timing as would be a spark in a petrol engine?

yes you got it in one, it really is easy, compress air and it gets hot, compress it enough and it will ignite finely atomized fuel, (from an injector) it really is not a boom but a finely controlled burn, makeitfit has to control his gas content in the induction air finely to avoid a fully combustible mix, if he gets it wrong then it is likely to burn well before TDC with very bad results, he knows what he is doing so has avoided this, but would not mind betting that in the early stages he got some rather odd noises from the engine from over gassing it, Rick

SNH · 04-09-2015, 20:30

I'm out of the market at the min as I've got a fair amount of rot to weld up

Mr K · 05-09-2015, 00:27

Looking at these also but just wondering, if they are pre programmed for the standard engine can you use these safely if you already have modifications, air filter and exhaust for example?

solarman216 · 05-09-2015, 00:49

Quote:

Originally Posted by Mr K

Looking at these also but just wondering, if they are pre programmed for the standard engine can you use these safely if you already have modifications, air filter and exhaust for example?

air filter and exhaust make little difference, Rick

solarman216 · 05-09-2015, 01:03

if any one wants a run down on exactly what extra performance entails please let me know and I will do my best in layman's terms to explain, Rick

makeitfit · 05-09-2015, 12:58

When I spoke to Tunit a few years back I explained my engine mods. I was told all will be fine and the tunit will simply exaggerate any improvements. Remember the Tunit is variable and as such you can turn it up to 11 if you want my kinda box or somewhere in the middle for a nice torque boost and fuel gains

05-09-2015, 01:03	#44
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,431	if any one wants a run down on exactly what extra performance entails please let me know and I will do my best in layman's terms to explain, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

04-09-2015, 16:08	#37
SNH Senior Member Join Date: Sep 2014 Location: East Midlands Vehicle: Ford maverick Posts: 427	Chris at tunit has a fully refurbished one in stock that he said he'd do me for £174 delivered, saves a few quid over the new one. I may contact that place at shefield and see what they say though. Derv doctor quoted me £300 so seems that's the ball park for remapping?

04-09-2015, 17:40	#38
Madmark Senior Member Join Date: Aug 2014 Location: Dorset Vehicle: highly modded Terrano 2 Posts: 1,088	I've just been quoted £516 for tunit 2 if they do second hand at £179 id snatch their hand off

04-09-2015, 18:11	#39
makeitfit Senior Member Join Date: Apr 2008 Location: on the beach WEST WALES Vehicle: Maverick TDi BLACK mmm Posts: 15,136	I bought mine direct from Tunit as a Factory refurb, as did a few others on here. It'll be fine. Go for it

04-09-2015, 20:30	#41
SNH Senior Member Join Date: Sep 2014 Location: East Midlands Vehicle: Ford maverick Posts: 427	I'm out of the market at the min as I've got a fair amount of rot to weld up

05-09-2015, 00:27	#42
Mr K Senior Member Join Date: Mar 2015 Location: South Northants Vehicle: Nissan Patrol Y61 2.8 Posts: 1,145	Looking at these also but just wondering, if they are pre programmed for the standard engine can you use these safely if you already have modifications, air filter and exhaust for example?

05-09-2015, 12:58	#45
makeitfit Senior Member Join Date: Apr 2008 Location: on the beach WEST WALES Vehicle: Maverick TDi BLACK mmm Posts: 15,136	When I spoke to Tunit a few years back I explained my engine mods. I was told all will be fine and the tunit will simply exaggerate any improvements. Remember the Tunit is variable and as such you can turn it up to 11 if you want my kinda box or somewhere in the middle for a nice torque boost and fuel gains