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Telf

Rolling road results at Emerald

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Telf

Success the engine didn't blow up. Not bad for a homemade engine

USER_SCOPED_TEMP_DATA_MSGR_PHOTO_FOR_UPLOAD_1555332324027.jpg_1555332329898.jpeg

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Anthony

Give yourself a pat on the back for a job well done :)

 

How long did it take for the nerves to settle down when the car was on the rollers?

 

From what I recall it was a standard engine wasn't it?  If so, figures and graph look good, and for what it's worth, the figures (as much as you can trust them from an RR) look to be pretty much identical to the book figures for the MP3.1 management version of the 1.9 GTi engine (XU9JA/K) as found in a ZX Volcane.

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jackherer
46 minutes ago, Anthony said:

How long did it take for the nerves to settle down when the car was on the rollers?

I'd say about an hour after we left Emerald :lol:

 

He had to leave the room at one point ;)

 

46 minutes ago, Anthony said:

From what I recall it was a standard engine wasn't it? 

It's 100% standard, it even has the induction hoses, airbox and an AFM with the flap fixed out of the way.

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jackherer

 

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Andy

That is a cracking result for a standard 1.9 . The Emerald ECU with wasted spark will have helped a bit , but nevertheless,  you can be pleased with a job well done .

 

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barneys66

Nice one, Paul !!

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jackherer
6 hours ago, Anthony said:

the figures (as much as you can trust them from an RR) look to be pretty much identical to the book figures for the MP3.1 management version of the 1.9 GTi engine (XU9JA/K) as found in a ZX Volcane.

I don't suppose you know what the minimum fuel octane rating is for those ZXs?

 

Paul's was filled with 95 RON so given that it's done very well I think.

 

The engine management is actually very similar to MP3.1 in theory, Paul's ended up using a combination of MAP and TPS. Does MP3.1 have a knock sensor?

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pug_ham

That's a good result, my RR graph is below from when i first had my MP3.1 conversion checked over at Chipwizards with my first engine rebuild attempt.

 

Not quite standard spec as it has a Piper 270' cam & a homemade induction set up to the standard tb of a straight pipe & large Ramair foam filter in the end, iirc I was using 97 ron fuel on a standard exhaust.  

 

post-71-0-05000400-1345585843_thumb.jpg

 

It went very well & surprised a few people when I took it on various trackdays.

6 hours ago, jackherer said:

I don't suppose you know what the minimum fuel octane rating is for those ZXs?

 

Paul's was filled with 95 RON so given that it's done very well I think.

 

The engine management is actually very similar to MP3.1 in theory, Paul's ended up using a combination of MAP and TPS. Does MP3.1 have a knock sensor?

I think the ZX on MP3.1 was originally set up for 95 ron but I'm not 100% certain on that.

 

MP3.1 doesn't have a knock sensor.

 

g

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Anthony
10 hours ago, jackherer said:

I don't suppose you know what the minimum fuel octane rating is for those ZXs?

 

Paul's was filled with 95 RON so given that it's done very well I think.

 

The engine management is actually very similar to MP3.1 in theory, Paul's ended up using a combination of MAP and TPS. Does MP3.1 have a knock sensor?

 

95 RON.  They run slightly lower compression at 9.2:1 compared to the GTi spec engine, but is otherwise identical as far as I can tell.

 

As Graham says, no knock sensor on MP3.1.

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welshpug

nice job!   my results on mp3.1 were very close to yours, 132 bhp iirc.

 

engine was standard other than a magnex exhaust manifold and the ZX intake pipe instead of the AFM, and it was a 140k miler :D

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Richie-Van-GTi

Great work Paul, is that her ready to be back on the road once the valances go back on?

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Telf

Richie- yeah it is- MOT on Thursday and then driving again

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