Search found 8 matches

by peterzrh
Wed Feb 10, 2016 8:35 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: EFi mapping 3.9 and 3.5 (hotwire/14CUX)
Replies: 33
Views: 17245

I've heard great things about the Tornado chip but the price is absurd.

That's a lot of money for nothing more than 128 hexadecimal numbers.
by peterzrh
Wed Feb 10, 2016 8:32 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: EFi mapping 3.9 and 3.5 (hotwire/14CUX)
Replies: 33
Views: 17245

The pump I'm using is the Jaguar Bosch one as used by the guys on the BritishV8 site.

I have later cylinder heads with the big valves and improved valve guide seals, so other than CR it isn't very different to a later engine.
by peterzrh
Wed Feb 10, 2016 1:13 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: EFi mapping 3.9 and 3.5 (hotwire/14CUX)
Replies: 33
Views: 17245

I know the hotwire to be excellent. 30k mile vehicle rear-ended. I removed everything including the complete, uncut wiring loom from the running salvage. I really am kicking myself I didn't take the motor too at the ridiculously low price it was offered. What appeals is that there are no sensors to ...
by peterzrh
Wed Feb 10, 2016 11:25 am
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: EFi mapping 3.9 and 3.5 (hotwire/14CUX)
Replies: 33
Views: 17245

What I will probably do is just try and get hold of a 3.5 map chip as well and just see which works best for now. I can't imagine these have much commercial value to anyone. From what I've read the 3.9 maps are very lean. Perhaps in operation they are actually a better compromise on the 3.5 performa...
by peterzrh
Tue Feb 09, 2016 5:34 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: EFi mapping 3.9 and 3.5 (hotwire/14CUX)
Replies: 33
Views: 17245

OK, will do. So no one has direct experience of a 3.9 map on a 3.5 motor?

I'm not fixed on a solution, I'm looking to keep it simple. I'll follow a different route if it's worth it.
by peterzrh
Tue Feb 09, 2016 2:08 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: EFi mapping 3.9 and 3.5 (hotwire/14CUX)
Replies: 33
Views: 17245

I understand that the Hotwire is a more advanced system than the flapper and this is where to start with a basic EFi conversion. BritishV8 has a few nice articles. Only four basic connections. I've done a fair bit of reading, I understand the components and my questions were framed to be quite speci...
by peterzrh
Tue Feb 09, 2016 1:30 pm
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: EFi mapping 3.9 and 3.5 (hotwire/14CUX)
Replies: 33
Views: 17245

Thanks guys. Experience is gold dust. TBH as it is for a Rover saloon, I'm not after the last word in performance. I'd be more than happy with something approaching stock Rover Vitesse performance and would like to stay with standard components if possible. Reliability and driveability are king here...
by peterzrh
Tue Feb 09, 2016 10:35 am
Forum: Exhaust, Cylinder Heads, Fuel And Intake Area
Topic: EFi mapping 3.9 and 3.5 (hotwire/14CUX)
Replies: 33
Views: 17245

EFi mapping 3.9 and 3.5 (hotwire/14CUX)

Gentlemen, Your wisdom please. I have a Rover 3.5 running at 10.5:1 which is to be fitted with the larger valve cylinder heads and EFi system which originated from a 3.9 Range Rover. This will run lambdas in feedback mode. Now my understanding is that as a MAF rather than MAP that these adapt fairly...

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