Midget 1500 map (help ! overheating problem??)

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1970wonky
Posts: 3
Joined: Mon Jan 21, 2008 8:32 pm

Midget 1500 map (help ! overheating problem??)

Post by 1970wonky »

Engine Mfg:
Engine Code:
Cylinders: 4
Displacement (cc): 1500
Rev Limit: 6000
TPS or MAP: TPS
Boosted or Normally Aspirated: N/A
If Boosted- max Pressure (KPa):
Modifications: Modified head,fast road cam,4-2-1 manifold engine rebuilt
Chassis:

Notes: All cooling system parts replaced but engine runs hot, could this be caused by ignition? which was set on a rolling road.

Any advice welcome, please take a look at my map, does any thing stand out that may cause this to run very hot :-)

WE THINK THIS MAY BE A FAULTY TEMP GAUGE NOW :-) NEW ONE ARRIVING SOON !!


NOT Gauge - same readings, replaced most things now..... flushed system AGHHGGHAAAGGHH!!
:!:
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rolling road 160507.mjlj
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Last edited by 1970wonky on Sat May 03, 2008 6:50 pm, edited 1 time in total.

alfa boxer
Posts: 47
Joined: Tue Jun 05, 2007 2:50 pm
Location: LEEDS UK

tps/vacume

Post by alfa boxer »

Hi, your map is not running tps

britlude
Posts: 64
Joined: Thu Nov 29, 2007 6:25 pm
Location: garden of England

Post by britlude »

if the petrol gauge is reading high too, check the gauge voltage supply regulator as well.....

1970wonky
Posts: 3
Joined: Mon Jan 21, 2008 8:32 pm

Re: tps/vacume

Post by 1970wonky »

alfa boxer wrote:Hi, your map is not running tps
Hi alfa boxer, what do you mean here? Many Thanks.

alexander
Posts: 246
Joined: Sat Jan 19, 2008 4:33 am
Location: sydney, australia.

Post by alexander »

he means that you stated in your setup specs that you are using a Throttle Position Sensor, rather than a MAP sensor, yet your ignition map is set up for a MAP sensor to measure load. perhaps that is the problem, or was it a typo when you said you are using a TPS?

alexander

mikaking
Posts: 21
Joined: Fri Sep 29, 2006 12:10 pm

Post by mikaking »

Hi 1970wonky,

I got my rad back and tried your map as promised, it works well generally. In some rev/vacuum ranges better, low end was worse, mid range similar, just after mid range the engine seemed to pick up better with your map, medium high range worse, very top end (now i've run my engine in) seemed better with your map.

I'm going to have to modify my map and pinch a few of your values. As i said before i'm going for a rolling road session soon so i'll upload my map as and when to compare.

I've been thinking of a modified head and fast road cam, what sort of power was your engine giving (bhp or rwbhp)

Thanks Mika

1970wonky
Posts: 3
Joined: Mon Jan 21, 2008 8:32 pm

MG Midget 1500

Post by 1970wonky »

Hi mikaking - Sorry for the delay in getting back to you - We got 88bhp on the rolling road, but do have similar symptoms that you describe here - I would be very interested to see your new 'tweaked' RR map if you have now been there. our RR were not Midget specialists

We sadly still have our running hot problem, and have now tried pretty much all we can think of from new hoses, new radiator, engine flush, new gauge, different map...... and hitting the car with a hammer :)
It runs between 80 - 90 when at any speed, as soon as we go slow or stop, it climbs to 100' and the kenlowe comes in, I have an oil cooler, so I guess that is helping the over all picture.... how does yours run heat wise?? Our nest step is a hot climate fan and a 74' thermostat....

Love to hear from you again [email protected]

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