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| Home > Help Needed / General Tech Chat > Under fuelling possible over 3000rpm? | |||||||
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102 Posts Member #: 5814 Advanced Member Kidderminster |
9th May, 2014 at 08:49:18am
Hi there been building my turbo over the last few months just took it out on road for first time yesterday. Seems to run okay under 3000rpm.
More Boost, More FUN! |
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 1425 Posts Member #: 9199 Post Whore Lancashire |
9th May, 2014 at 08:58:10am
What MAP are you running ?
What the mind can conceive the mini can achieve
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102 Posts Member #: 5814 Advanced Member Kidderminster |
9th May, 2014 at 09:07:55am
No afr, and it was on a metro turbo that ran and I haven't adjusted anything as I assumed it might be somewhere near. Will get a pic of the map later More Boost, More FUN! |
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 6729 Posts Member #: 618 Post Whore Glasgow |
9th May, 2014 at 09:58:56am
Fuel pressure? |
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1425 Posts Member #: 9199 Post Whore Lancashire |
9th May, 2014 at 10:06:30am
4 psi at idle / stopped
On 9th May, 2014 Rob Gavin said:
Fuel pressure? What the mind can conceive the mini can achieve
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806 Posts Member #: 989 Post Whore North Yorkshire |
9th May, 2014 at 10:41:03am
Perished balance pipe on the carb is a strong possibility and easy to replace. |
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102 Posts Member #: 5814 Advanced Member Kidderminster |
9th May, 2014 at 03:13:55pm
Had a look earlier and you know the rubber pipe off the actuator. It goes back to a joiner by the turbo? What goes on the other side of that joiner? More Boost, More FUN! |
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 171 Posts Member #: 9928 Advanced Member Hartley, Kent |
9th May, 2014 at 03:23:13pm
originally went to the ecu to adjust boost over 5k rpm on the metro or something like that anyway, your best bet is to blank it Low boosting for now. |
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102 Posts Member #: 5814 Advanced Member Kidderminster |
9th May, 2014 at 03:30:02pm
Okay cool. And gonna check lee now. Which is the balance pipe is that the link one from the top to the left side? More Boost, More FUN! |
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102 Posts Member #: 5814 Advanced Member Kidderminster |
9th May, 2014 at 04:49:12pm
Whacked it up to 4 psi and it's now not starting. It was idling then when it hit 4 it spluttered and cut out? More Boost, More FUN! |
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 270 Posts Member #: 69 Senior Member Coventry |
9th May, 2014 at 05:05:23pm
Pipe to ECU limits boost to .4 bar to about 3000RPM and then .7 bar over that, acts as an electronic bleed valve in effect. most just block it and then only get .4 bar over the whole rev range. |
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102 Posts Member #: 5814 Advanced Member Kidderminster |
9th May, 2014 at 05:16:11pm
I've got an avonbar actuator on it which is set accordingly to about 7 ish psi at the moment. Just seems to be all over the place with fuel? More Boost, More FUN! |
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 3673 Posts Member #: 9300 Post Whore Quarry Bonk |
9th May, 2014 at 05:56:46pm
I'm surprised you haven't been asked yet, but what fuel pump are you running? On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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102 Posts Member #: 5814 Advanced Member Kidderminster |
9th May, 2014 at 06:00:59pm
It's a sytec one? I drove it in the metro so I know it does work with this. That's one of the things I can't get my head around. There is something stupid some where I'm doing wrong More Boost, More FUN! |
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3673 Posts Member #: 9300 Post Whore Quarry Bonk |
9th May, 2014 at 06:03:51pm
What specs are the fuel pump? What size feed and return? On 26th Jan, 2012 Tom Fenton said:
ring problems are down to wear or abuse but although annoying it isn't a show stopper On 5th Aug, 2014 madmk1 said:
Shit the bed! I had snapped the end of my shaft off!! 17.213 @ 71mph, 64bhp n/a (Old Engine) |
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102 Posts Member #: 5814 Advanced Member Kidderminster |
9th May, 2014 at 06:13:07pm
Can't remember the specs of it like I say I have seen it running with it on. And 9mm feed and return More Boost, More FUN! |
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 9812 Posts Member #: 332 Resident Cylinder Head Modifier Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem |
9th May, 2014 at 07:31:01pm
sealy as above but get a AEM lambda air fuel ratio gauge ASAP so you know where you are
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102 Posts Member #: 5814 Advanced Member Kidderminster |
9th May, 2014 at 07:39:50pm
Where do you put the lambda sensor though Benross? Does that mean I need another downpipe? More Boost, More FUN! |
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 4633 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
9th May, 2014 at 08:21:44pm
Weld a boss onto you're current downpipe.
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102 Posts Member #: 5814 Advanced Member Kidderminster |
9th May, 2014 at 08:34:53pm
Just drill a hole and weld a nut? Any specific location it needs to go More Boost, More FUN! |
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133 Posts Member #: 476 Advanced Member The Black Countraaaaay |
10th May, 2014 at 09:19:42am
possibly a stupid question but is there oil in the carb damper? If not the carb wont operate properly and have you got a boost gauge to check what the turbo produces at 3000 rpm? Masturbation is not a crime its a hobby |
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102 Posts Member #: 5814 Advanced Member Kidderminster |
10th May, 2014 at 09:35:54am
Hi Wolfie. Yeah checked carb last night took it to bits to check for bits in the pickup etc. and if I could get it running again I would as yes I have a boost gauge More Boost, More FUN! |
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171 Posts Member #: 9928 Advanced Member Hartley, Kent |
12th May, 2014 at 02:01:13pm
have you had any luck with this mate? im having issues myself and am clutching at straws to the point of giving up on the damn thing. ive gone through everything ;( Low boosting for now. |
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102 Posts Member #: 5814 Advanced Member Kidderminster |
13th May, 2014 at 11:53:14am
Hi mate. Haven't got an afr yet but still gonna do it but gonna try a carb re-build first. As it's done flat out I've noticed but it's when you come off the throttle I think it's over fuelling now as that's when it struggles. Also I took the pipe off the plenum that return the regulator and that's was full of fuel. Which leads me to believe something is sticking. Got an idea it's the seal where the needle passes through.
On 12th May, 2014 TurboMike1992 said:
have you had any luck with this mate? im having issues myself and am clutching at straws to the point of giving up on the damn thing. ive gone through everything ;( More Boost, More FUN! |
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102 Posts Member #: 5814 Advanced Member Kidderminster |
8th Jun, 2014 at 12:33:10pm
Right guys. Back at it again now after a week away. Spoke to ian at avr and got a rebuild kit and a new needle as the old needle had a slight kink in it I could feel. So rebuilt with a new needle ian suggested just tried it and same problem. Is there anyone who could set it up for me without the the need for me installing an afr? Or is it literally the only way to go?
More Boost, More FUN! |
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