GeoffB
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| posted on 6/2/07 at 07:20 PM |
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Blade running probs.Still..!!!
after some not very sceintific testing i have made these observations. But before i have to truck it somewhere or drive it a long way, both costing or
a lot of hassle any ideas from you guys or things to rule in or out
97 blade engine,standard airbox,dyno jet fitted,air corrector holes blocked,standard blade pump,standard filter and dna filter,all holes blocked under
carbs,standard mk 4 into 1 + silencer..everything done i can think of to make it go..
Problem:
car runs,idles ok untill i get to higher revs aprrox 7500-8200k where it will just sit there and will not go any further..
128 jets fitted & standard filter:
revs upto 7500k and will not go any further
128 jets fitted & No filter in airbox:
revs upto 9000k then stumbles alot,but seems to stop
132 jets and standard filter:
revs upto about 8000k and will not go any further
132 jets and performance filter:
revs upto about 8200k and will not go any further
132 jets and no filter in airbox:
revs upto 8200k the stops for a few seconds then slowley and roughley revs to around 10-10500k, but it stuggles to get thier
cant seem to put my finger on the problem and at moment dont have much spare cash to sort..but it very frustrating as untill the problem area in revs
it pull really well and i fed up with going out and being overtaken by saxo drivers.!!!!
All comments and suggestions no matter how simple or complicated they may be greatfully received.
Im convinced it something simple
Thanks in advance..
Geoff
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ChrisGamlin
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| posted on 6/2/07 at 07:26 PM |
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What about driving it up to the point it stops pulling then killing the engine instantly and having a look at the plugs. It sounds very much like its
running lean so you should get white-ish plugs but the fact that you get the same problem with various different jets would suggest otherwise.
Have you checked the coil packs / leads / plugs, maybe one is breaking down at high rpm?
[Edited on 6/2/07 by ChrisGamlin]
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the_fbi
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| posted on 6/2/07 at 07:36 PM |
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Do you have the original jets?
If you've got them, and the original airfilter/box you could put it back to when it was a "bike" and see how it revs then. If
it'll do that then at least you know its a jetting/air issue rather than something else.
You can get a set of blade carbs for £40 off ebay, maybe worth trying a different set before you fork out for trailering the car somewhere.
You'll get the £40 back on eBay after.
I presume we know the rev counter is accurate and not set for a V6 or something and under reading?
Also, where abouts are you?
[Edited on 6/2/07 by the_fbi]
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ayoungman
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| posted on 6/2/07 at 07:44 PM |
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enough fuel being supplied to meet the throttle demands?
"just like that !"
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ReMan
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| posted on 6/2/07 at 08:36 PM |
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Am I right in thinking you have never had this run right yet?
Did you get the engine and ECU togethr and running?
Do you have throttle pos sensor?
Do you have a spare ECU to try?
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GeoffB
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| posted on 6/2/07 at 08:47 PM |
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chris:
thought it could be the coils , but dont understand why it works, better when you allow more air in.?
the fbi:
i tried running it on standard jets and filter and airbox from the start, but if i remeber right it didnt like revving above 6500k..i live in ashford
kent
ayoungman:
It seems either too much fuel for the air (with a filter in) or not enough air with the filter out..but i tried standard jets,128 AND 132 JETS with
,without filter..
Does any body know what changing the clip settings does on the needles.??
Reman;
never had it running how it should from the start.
the engine and all bits came from mk
it does have the throttle sensor on it
i dont have a spare ecu,coils or any spares to try..
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G.Man
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| posted on 6/2/07 at 09:04 PM |
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raise the needles..
put the circlip on lowest position and try again..
sounds lean in the middle
Opinions are like backsides..
Everyone has one, nobody wants to hear it and only other peoples stink!
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GeoffB
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| posted on 6/2/07 at 10:04 PM |
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G-man
does the lowest setting mean.
A) at the top of the needle
B) at the bottom end, the end that start to go to a point (hope that makes sene
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andrew.carwithen
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| posted on 6/2/07 at 10:20 PM |
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Geoff,
I happened to be talking to Andy Bates at AB Performance earlier today and coincidentally, was discussing fitting a dynojet kit and the various
settings as a starting point.
He said to use 128 - 132 main jets (which you have done)
Block off air corrector jets (which you've done)
Turn pilot air screws all the way in and then back out 2 1/2 turns.
Circlip on needle to be fitted in the 2nd groove down from the top of needle (i.e. the thick end.)
HTH,
Andy.
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ReMan
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| posted on 6/2/07 at 10:24 PM |
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He means.........
Lowest is nearest the pointy end.
ie to keep it further up at rest.
I would be good if it is just fuelling, but it sounds to consistent, I don't think that carb engines are that fussy.
I am erring on the side of ecu/tps/engine fault or incompatibility somehow, but I hope i am wrong
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GeoffB
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| posted on 6/2/07 at 10:26 PM |
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i had my kit and filter off andy and have used the settings he said..he has been good and offered to look at my car if i can get it to him, but i cant
at the moment ..
And i thought couple of hundred heads my think of something we cant..
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Andy B
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| posted on 7/2/07 at 06:11 PM |
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Geoff
will send out spare ecu and coils to try, tomorrow, although everything sounds fuel related, if there is an ignition fault, a weak spark will find the
leaner mixture easier to ignite - thus better running minus filter - give me a call tomorrow to make sure I send them to correct address
regards
Andy
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the_fbi
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| posted on 7/2/07 at 07:23 PM |
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quote:
Originally posted by Andy B
Geoff
will send out spare ecu and coils to try, tomorrow, although everything sounds fuel related, if there is an ignition fault, a weak spark will find the
leaner mixture easier to ignite - thus better running minus filter - give me a call tomorrow to make sure I send them to correct address
regards
Andy
And thats what you call top notch service and why the guy gets such good reviews/feedback from all parties!
Nice to see some suppliers actually giving good customer service!
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