I have and Indy with the bonnet bulge, I’m running a pinto with the MK exhaust manifold. Currently I have this wrapped where it is within the bonnet.

Having read other threads, it would indicate that there can be problems with the build up of heat in the head.

This weekend I went out on a drive and the temperature barely got above 75’C, admittedly it was a cool day but the scoop on the bonnet was ensuring more cool air entering the engine bay than was necessary.

I want to keep heat wrap around the pipe nearest the alternator, but should I remove the remaining heat wrap and see if this raises the engine temperature?

ditch

75 seems a bit cold to me would be happer with 85 -90 on a pinto. 70's more like what the oil should be.

I had a tubular manifold on the Cortina it was amazing how hot it could get, glowed bright orange after a good blast.


[Edited on 10/3/08 by Mr Whippy]

The problems tend to be with fully enclosed bodied cars, but if you wrap one header do the lot as just doing one will affect the efficiency of the exhaust.

i will look for another thermostat then and keep on all the wrapping

i'm currently not allowed to run it above 4.5K revs as i'm running the engine in, well i only reached 7K for a brief 1 second

i usually rag my cars to an inch of their lives but this engine has cost me so much i dare not

one of the boys said the fuel guage moves very fast and i recon it is doing about 8 to 10mpg my wallet is hurting

ditch

[Edited on 10/3/08 by ditchlewis]

[Edited on 10/3/08 by ditchlewis]

Hi on a pinto engined car the wrap will not cause any real problems with heat build up in the head. It is mainly engines with alloy heads on that suffer the problems.

To gain a bit more engine temp just partially blank a small section of the RAD. Untill the warmer weather and then remove blanking section.

Cheers Matt

thanks mat

used to do the same with a mini i had once, but that was to stop water getting on the distributer in the wet

i must have some ply in the shed some where

ditch

Wow 8-10mpg
I would struggle to do that with mu 3.2 tintop

8-10mpg!!!
Unless you're running really rich you need to come round to the dark side of BECs
Even when ragging the hell out of my car I get double that.... I think my brothers blackbird RGB Fury racer used to get mid to high teen MPGs whilst racing....

Engine swaps aren't that expensive

sounds like my old Cortina which by the time I'd finished turning it into a death trap was doing 15mpg , pretty damn quick though

it's proberbly running rich when it can get the fuel through.

alternatly it could be leaking out somewhere

the only way to find out is to run it dry and check on when filling it up and see how much i put in when it reaches 0 on the guage or when it reads FULL on my guage it runs in reverse, just cant be bothered to change it

any way it is not cheap to run, just wont tell SWMBO

ditch

as for BEC's i would only entertain the ZZR14 or Haybusa and those are to rich for my blood
[Edited on 10/3/08 by ditchlewis]

[Edited on 10/3/08 by ditchlewis]

have you got your smiley button stuck on?

it makes your posts really hard to read!
tom

At 75 degrees you may be actually harming the engine as it needs to come up to temperature (90-100ish) to reduce engine wear.

Your thermostat should recirculate the water until full operating temp is reached - have you checked if your rad is warming up too soon?

Get the engine running at the proper temperature and get it set up properly on a rolling road . Should help with fuel consumption and also improve performance. Seem to remember another of your posts about the pressure regulator being in the wrong fuel line? maybe not helping? Dump the Webers and fit bike carbs , properly set up they should give as good/better performance and economy. Excess fuel consumption WILL ruin the engine due to bore wash!