Synergy Fitting

SteveWaller · 6th September 2007, 08:28

Fitted my new Synergy last night and very pleased with the results. Much quicker from 50 to 80. I was wondering where other people have located their temperature sensor wire. I have fastened mine to the bulkhead behind the engine as I didn't really want to make holes in the air filter housing. Seems OK and the instructions indicated that it does not have to be in the air inlet stream, but wondered what others had done and what results they had achieved.

Hampton Caught · 6th September 2007, 11:53

Hi Steve,

I fitted my Synergy about 5 weeks ago and have been very pleased with the results

.

I decided to cut a slit in the grommet and leave the temperature sensor hanging in the plenum.....however, I think I'm correct in saying that the standard, Bosch MAF doesn't need this anyway - it's only used in conjunction with the Pierburgh MAF. As I was cutting slits in the grommets to fit my on/off switch to the dashboard in any case, I didn't mind shovving the temp sensor through the grommet too.

I used the Synergy switched on and set to 10, with the MAF switch on too when I was towing my caravan. With the MAF section switched on, there was more pull from low revs (which is great when you've got a caravan on the rear) but a lot more smoke when accelerating and cruising. Now I'm solo again, I'm using setting 6 with the MAF part switched off.

Hope that's useful.

Steve

SteveWaller · 6th September 2007, 11:59

Interesting point about the Bosch MAF not needing the temperature sensor. Wonder if Ron can comment on this. I think the wire for the built in sensor may not be connected on the MAF now, even though I am still using the Bosch MAF.

pondweed · 6th September 2007, 16:15

sadly, its a complete override once the Synergy is fitted. I had hoped that the Bosch one would use its own, but Ron said that they (i.e. the synergy's one) are pretty reliable.

Roverron · 7th September 2007, 12:02

Quote:

Originally Posted by SteveWaller

Interesting point about the Bosch MAF not needing the temperature sensor. Wonder if Ron can comment on this. I think the wire for the built in sensor may not be connected on the MAF now, even though I am still using the Bosch MAF.

You are right, the Synergy IAT replaces the Bosch one. It has a very similar response and if fitted through a small hole in the end of the air filter housing, will read the same as the Bosch one.
Some owners have said placing the IAT in a warmer location (eg on top of the air filter housing improves mpg but I've not tried this. In theory it should slightly reduce the power as the ecu will reduce the fuel to match what it sees as less dense air.

No harm in trying it over a tankful of fuel, though our Indian Summer isn't ideal for comparing locations.

Ron

6th September 2007, 08:28	#1
SteveWaller Avid contributor Rover 75 cdti Contemporary SE Join Date: Aug 2007 Location: Northern Ireland Posts: 199 Thanks: 1 Thanked 1 Time in 1 Post	Synergy Fitting Fitted my new Synergy last night and very pleased with the results. Much quicker from 50 to 80. I was wondering where other people have located their temperature sensor wire. I have fastened mine to the bulkhead behind the engine as I didn't really want to make holes in the air filter housing. Seems OK and the instructions indicated that it does not have to be in the air inlet stream, but wondered what others had done and what results they had achieved.

6th September 2007, 11:53	#2
Hampton Caught Loves to post ex MG ZT-T (sob!), Rover 25 and TR7 dhc pilot, but not all at the same time! Join Date: Mar 2007 Location: near Hampton Court Posts: 430 Thanks: 0 Thanked 1 Time in 1 Post	Hi Steve, I fitted my Synergy about 5 weeks ago and have been very pleased with the results . I decided to cut a slit in the grommet and leave the temperature sensor hanging in the plenum.....however, I think I'm correct in saying that the standard, Bosch MAF doesn't need this anyway - it's only used in conjunction with the Pierburgh MAF. As I was cutting slits in the grommets to fit my on/off switch to the dashboard in any case, I didn't mind shovving the temp sensor through the grommet too. I used the Synergy switched on and set to 10, with the MAF switch on too when I was towing my caravan. With the MAF section switched on, there was more pull from low revs (which is great when you've got a caravan on the rear) but a lot more smoke when accelerating and cruising. Now I'm solo again, I'm using setting 6 with the MAF part switched off. Hope that's useful. Steve

6th September 2007, 11:59	#3
SteveWaller Avid contributor Rover 75 cdti Contemporary SE Join Date: Aug 2007 Location: Northern Ireland Posts: 199 Thanks: 1 Thanked 1 Time in 1 Post	Interesting point about the Bosch MAF not needing the temperature sensor. Wonder if Ron can comment on this. I think the wire for the built in sensor may not be connected on the MAF now, even though I am still using the Bosch MAF.

6th September 2007, 16:15	#4
pondweed This is my second home Waiter, Waiter! I seem to have a Roomster in my drive... Join Date: Nov 2006 Location: Sussex Posts: 3,268 Thanks: 0 Thanked 1 Time in 1 Post	sadly, its a complete override once the Synergy is fitted. I had hoped that the Bosch one would use its own, but Ron said that they (i.e. the synergy's one) are pretty reliable.