rolling road graph analysis
02-11-2008, 07:42 PM
#1
rolling road graph analysis
Been to the rolling road at APT today to find out how many ponies went missing after rebuilding my head.
On the outset, things look good!
It's no worse than it was before (unless 4bhp counts 
), but slightly annoying is that it's no better. In fact, it looks like I put it together right, which I'm more proud of!
Made 236 at the flywheel, which was a bit pants, and, that naughty fuelling problem is back again. In fact, it's now leaner than it was before.
My simplistic understanding of the situation is that as the head's now actually flowing some gas, it's naturally got more air going in than fuel, so as it was 'ok' before, it's going to be lean now.
Graphs are below for advice, opinions, and general analysis:
On the outset, things look good!
It's no worse than it was before (unless 4bhp counts ), but slightly annoying is that it's no better. In fact, it looks like I put it together right, which I'm more proud of! Made 236 at the flywheel, which was a bit pants, and, that naughty fuelling problem is back again. In fact, it's now leaner than it was before.
My simplistic understanding of the situation is that as the head's now actually flowing some gas, it's naturally got more air going in than fuel, so as it was 'ok' before, it's going to be lean now.
Graphs are below for advice, opinions, and general analysis:
03-11-2008, 01:48 PM
#2
20K+ Super Poster.
You already know what part of the problem may be but chose not to fix it, you have to do all the basics first, but pointless telling some people, you killed two new headgaskets, because you didn't want help, well from certain people anyway.
Speaking of rolling roads, I was drooling over gooeys car today at Emerald, and having a gas about it, very well prepared car it is.
tabetha
Speaking of rolling roads, I was drooling over gooeys car today at Emerald, and having a gas about it, very well prepared car it is.
tabetha
Last edited by tabetha; 03-11-2008 at 01:52 PM.
03-11-2008, 04:32 PM
#3
I killed two head gaskets because I was a numpty and didn't remove the 2nd heaviest part of the head, ie the turbo, and because I was too eager to get it done. Lesson learned, albeit the expensive way. 
Thanks for replying though - it's more than the other 42 viewers of the thread have done, with the exception of those who've posted on the Norfolk group's forum.
Thanks for replying though
- it's more than the other 42 viewers of the thread have done, with the exception of those who've posted on the Norfolk group's forum.
Suffice to say I'm not going to fiddle with it any more - gonna leave it to the experts. It may well be spending an extended holiday with you if you'll have it Trending Topics
04-11-2008, 12:39 PM
#10
20K+ Super Poster.
It's got a new pump(941) pressure has been checked and was bang on.
Cozmeister is still on the old wiring though, which is why I suggested(last year) a check of pump voltage under load, and said just bring it round and I'll rewire it FOC, but it's up to him.
tabetha
Cozmeister is still on the old wiring though, which is why I suggested(last year) a check of pump voltage under load, and said just bring it round and I'll rewire it FOC, but it's up to him.
tabetha
04-11-2008, 01:44 PM
#11
Well it ain't going anywhere for the time being as it just failed the MOT
CO was 3.3%, and HC was 310, so for a change it passed on the emissions (just!). I'll be happy to take you up on the offer tabs....once I get it back anyway!
CO was 3.3%, and HC was 310, so for a change it passed on the emissions (just!). I'll be happy to take you up on the offer tabs....once I get it back anyway!
04-11-2008, 04:21 PM
#12
20K+ Super Poster.
Did it fail bad then ?
I am at two RR sessions next week(complete mapping) for two diferent cars(two different places) if you want to tag along to one ?
The rewire won't take long to do, if you want we could always put an extra fuel cut out switch in at the same time ?
tabetha
I am at two RR sessions next week(complete mapping) for two diferent cars(two different places) if you want to tag along to one ?
The rewire won't take long to do, if you want we could always put an extra fuel cut out switch in at the same time ?
tabetha
04-11-2008, 05:52 PM
#13
2 hours of welding, really that's it. Just annoying - as well as a couple of other things that I could've sorted myself if I'd have thought about it and not been lazy. My own fault but hey ho.
Should have it back tomorrow, so whenever you're free.
Should have it back tomorrow, so whenever you're free.
04-11-2008, 05:53 PM
#14
2 hours of welding, really that's it. Just annoying - as well as a couple of other things that I could've sorted myself if I'd have thought about it and not been lazy. My own fault but hey ho.
Should have it back tomorrow, so whenever you're free.
Should have it back tomorrow, so whenever you're free.
04-11-2008, 07:27 PM
#15
20K+ Super Poster.
The dreaded tin worm strikes again!!
Not bad though, could have been a lot worse, should be able to on the 15th(nov), got to change my tank, put on pre filter, pump(044) and new filter, and a few other bits, scorpio cossie rear roll bar, solid diff mount, solid beam mounts, solid rack bushes, and a new gauge set.
If you are interested in the I14 engine/box, you need to shout soon, it's FOC, just needs picking up, bro has changed his plans, selling whole kit car now as just bought new Cayman.
tabetha
Not bad though, could have been a lot worse, should be able to on the 15th(nov), got to change my tank, put on pre filter, pump(044) and new filter, and a few other bits, scorpio cossie rear roll bar, solid diff mount, solid beam mounts, solid rack bushes, and a new gauge set.
If you are interested in the I14 engine/box, you need to shout soon, it's FOC, just needs picking up, bro has changed his plans, selling whole kit car now as just bought new Cayman.
tabetha
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