FAO: richmod owners

Ed. · Post by **Ed.** » Sun Jul 16, 2006 3:19 pm

I was driving my richmodded 440 earlier, I was giving it some encouragement but according to the boost gauge, it didn't seem to be boosting as high as it has done previously. It was boosting to near the end of the yellow but no further, though in the past it has boosted to the end of the red. The car did seem slightly slower than it has done in the past.

I had just filled the car up this morning, and the temperature outside was reading around 29c, could these factors be affecting it? or do i have a problem? Turning off the aircon didn't make much difference to the performance.

Any ideas?

Ed

Brasco · Post by **Brasco** » Sun Jul 16, 2006 4:51 pm

I've had this... I thought it might bo the temperature too.
I found that resetting the ECU helped.

chris1roll · Post by **chris1roll** » Sun Jul 16, 2006 6:06 pm

It will back off the boost and enrich the mixture - to stop the engine melting - if the combustion temperature gets too high. Which is likely to happen in this kind of heat as the charge air is cooled by the intercooler, warmer ambient temp = less cooling ability.

Also why the turbos on a dyno don't perform as well as hoped, the fans can't cool the intercooler anything like as well as the ram-air effect of 90mph driving for example.

guitarcarfanatic · Post by **guitarcarfanatic** » Sun Jul 16, 2006 7:06 pm

Mine has done exactly the same thing! Can just about tease 2 needles width of red out of her at 4500rpm in 4th. Everything else is right in between the yellow/red. Come on cold weather!!! I though it was teh crap petrol I put in at first but after a bit of super and a reset same thing! Car does still shift mind. Still spools up boost quicker etc than before

Big Brother · Post by **Big Brother** » Sun Jul 16, 2006 7:16 pm

Well I donâ€™t have a turbo (although I wish I did) but if it would stop the engine melting I wouldnâ€™t mind driving a little slower for a few days.

Ad

robin_xr4i · Post by **robin_xr4i** » Mon Jul 17, 2006 7:49 am

guitarcarfanatic wrote:Come on cold weather!!!

Hell yes, nice cool dense air! The foggier the better, watch the boost gauge off the end of the red

haz@nocturnal_development · Post by **haz@nocturnal_development** » Mon Jul 17, 2006 6:56 pm

not got the rich mod but both ecu'd have been played with by overboost, no problems in this weather, still running optimax and 21psi. been to brunters for a few laps on a track day on sat, and pod for 5 runs on sunday and barr the plugs foulin up in the queue due it bein rich at idle, not a problem.

maybe its the ecu 'learnin' that you don't drive it that hard so it may have lowered the settings, maybe some high speed motorway journey's will sort it, or so its rumoured.

i can see a few degrees rising the engine coolant temp but blowing up?? 600+ degrees in the cylinders, don't think an extra 10 or so would affect it.

haz

Brasco · Post by **Brasco** » Mon Jul 17, 2006 8:46 pm

haz@nocturnal_development wrote:maybe its the ecu 'learnin' that you don't drive it that hard so it may have lowered the settings, maybe some high speed motorway journey's will sort it, or so its rumoured.

No, definately not mate, I reset the ECU over in Germany in a service station, was driving it on the autobahn, and really needing to floor it quite often (and cruising at 120mph most of the time), but after a while the boost wouldn't go into the red.

martinholmesuk · Post by **martinholmesuk** » Mon Jul 17, 2006 9:28 pm

I'm boosting a nice 15psi ok

volviz · Post by **volviz** » Tue Jul 18, 2006 1:36 pm

still can't get Richard in contact

could someone tell him that I'm desperate..I need him..can't live withouthim

..................

V480TI · Post by **V480TI** » Sat Jul 22, 2006 3:21 pm

How high should the turbo boost gauge go with the rich mod?!?

greetz

Brasco · Post by **Brasco** » Sat Jul 22, 2006 3:59 pm

To the end of the red.

V480TI · Post by **V480TI** » Thu Jul 27, 2006 5:46 pm

Where to look and what can I do to find why in my :
1990 turbo
1989 turbo the gauge only goes half orange ?!?

thanks and greetz

levin · Post by **levin** » Thu Jul 27, 2006 6:50 pm

V480TI wrote:Where to look and what can I do to find why in my :
1990 turbo
1989 turbo the gauge only goes half orange ?!?

thanks and greetz

Is your car rich modded?

My 1989 turbo went to the end of the yellow when it was fully stock. Now it goes to the end of the red

V480TI · Post by **V480TI** » Fri Jul 28, 2006 4:17 pm

Yes, it is rich modded.
Funny that everybody tells that the gauge always goes towards the red.
but nor in my 1990 or 1988 turbo this happened.
They (both) went halfway orange.
But :::::::: It was a lot quicker then standard, that is obvious for me.
Now I am beginning to think that it can be even more quicker.

But how to fix the problem ?

The Rich ECU is now in my 1988 turbo manual.
I noticed a few days ago that wenn I floor the pedal (so that the turbo comes in) and shift gear up ( and do not exceed 2500 rpm's or so)
I hear a component in the engine bay either passing or losing air, with a sound that is something like a dumpvalve but much quiter.
I didn't had this in my 1990 turbo.
1990 turbo : orange ecu
1988 turbo : purple ecu, now a orange richmodded on with problems.

Thanks and greetz

guitarcarfanatic · Post by **guitarcarfanatic** » Sat Jul 29, 2006 1:30 pm

Ok well this is annoying me! My car is filled with optimax, reset ECU, and the weather is cold today. It just wont boost into the red!!!!!

I'm thinking...

Plugs (They are standard plugs so maybe cant cope with the extra heat meaning teh ECU is backing off...I have done rotor arm, dizzy cap etc and the leads look in good codition!)

TPS sensor? I know Robins car had a problem where it would only boost standard because of it.

Boost leak? I have checked all the pieps as well as can and I cant see or hear any leaks.

The car is still loads quicker than standard...It just have the same kick as it did to start with! Any other suggestions or advice on how to test? Do any of these reasons sound plausible?

Cheers for any advice.
Rob

chris1roll · Post by **chris1roll** » Sat Jul 29, 2006 5:18 pm

Blown your crankcase ventilation valve?

guitarcarfanatic · Post by **guitarcarfanatic** » Sat Jul 29, 2006 6:21 pm

Thats above the oil seperator on the front of the engine right? How do I test it?

Cheers,
Rob

Brasco · Post by **Brasco** » Sat Jul 29, 2006 6:37 pm

Don't mean to rub it in mate, but I noticed mine go right off the scale today, didn't know it went that far.

Ed. · Post by **Ed.** » Sat Jul 29, 2006 6:42 pm

guitarcarfanatic wrote:Ok well this is annoying me! My car is filled with optimax, reset ECU, and the weather is cold today. It just wont boost into the red!!!!!

I'm thinking...

Plugs (They are standard plugs so maybe cant cope with the extra heat meaning teh ECU is backing off...I have done rotor arm, dizzy cap etc and the leads look in good codition!)

TPS sensor? I know Robins car had a problem where it would only boost standard because of it.

Boost leak? I have checked all the pieps as well as can and I cant see or hear any leaks.

The car is still loads quicker than standard...It just have the same kick as it did to start with! Any other suggestions or advice on how to test? Do any of these reasons sound plausible?

Cheers for any advice.
Rob

I'm getting similar symptoms. Its boosting higher than standard, but not much into the red. The car is quicker than standard, but not as quick as it used to be. Whats going on?

Ed

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FAO: richmod owners

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