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2096 Posts Member #: 1111 Post Whore s wales |
10th Mar, 2008 at 10:53:35am
if removing the ecu from a metro turbo engine, what boost can be run safely? im looking at avonbar actuators, and thinking that 8psi one would be suitable? many thanks |
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34 Posts Member #: 2156 Member wigan jnt 23 m6 |
10th Mar, 2008 at 03:44:53pm
id say that would be ok as the standard boost 7 psi |
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4309 Posts Member #: 1321 Post Whore Wiltshire |
10th Mar, 2008 at 04:31:25pm
I take it this engine will be intercooled?
On 7th Oct, 2010 5haneJ said:
yeah I gave it all a good prodding |
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4018 Posts Member #: 1757 Back to Fucking Tool status Swindon |
10th Mar, 2008 at 07:13:36pm
iirc its 4psi in the first two gears and 7psi in 3rd and 4th??? i have also heard some only run 4psi not sure about that though Drives
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Site Admin  15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
10th Mar, 2008 at 07:27:55pm
Wrong, its 7psi up to about 3500rpm, 4psi from 3500 to 5k ish, then 7psi again after that. Done to cut out the big torque peak in the mid range so that the gearboxes did self destruct in warranty period.
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
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806 Posts Member #: 989 Post Whore North Yorkshire |
10th Mar, 2008 at 08:08:53pm
Not quite. It is 4psi up until about 4500rpm, then it increases in line with the revs until it maxes out at 7psi at about 6300rpm. Without the boost modulator system it is 4psi maximum.
On 10th Mar, 2008 Tom Fenton said:
Wrong, its 7psi up to about 3500rpm, 4psi from 3500 to 5k ish, then 7psi again after that. Done to cut out the big torque peak in the mid range so that the gearboxes did self destruct in warranty period. |
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Site Admin 15300 Posts Member #: 337 Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner & TM legend. |
10th Mar, 2008 at 08:16:40pm
Well whatever, its a crap band aid system that is best thrown in the bin.......
On 29th Nov, 2016 madmk1 said:
On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else Like fuel 😂😂 |
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 4360 Posts Member #: 1459 En-suite user Braintree, Essex |
11th Mar, 2008 at 12:39:52pm
Disconnected mine on my first turbo. :) On 19th Jan, 2010 wil_h said:
I would start the furthest place from the finish. On 24th Mar, 2012 apbellamy said:
I feel all special knowing that I've given your mum my wood. Been neglecting Turbo'd 'A' series.............. |
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 214 Posts Member #: 1574 Senior Member Malta |
11th Mar, 2008 at 06:21:46pm
The first job on my build was to flog the ECU on Ebay!!
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 9812 Posts Member #: 332 Resident Cylinder Head Modifier Mitsi Evo 7, 911, Cossie. & all the chavs ...... won no problem |
14th Mar, 2008 at 08:48:11pm
On 10th Mar, 2008 metroturbo said:
Not quite. It is 4psi up until about 4500rpm, then it increases in line with the revs until it maxes out at 7psi at about 6300rpm. Without the boost modulator system it is 4psi maximum. On 10th Mar, 2008 Tom Fenton said: Wrong, its 7psi up to about 3500rpm, 4psi from 3500 to 5k ish, then 7psi again after that. Done to cut out the big torque peak in the mid range so that the gearboxes did self destruct in warranty period. toms right on this one
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806 Posts Member #: 989 Post Whore North Yorkshire |
14th Mar, 2008 at 09:39:56pm
The Austin-Rover repair manual, Vizard's guide, and the boost gauge in my standard Metro Turbo all match what I stated. |
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104 Posts Member #: 1870 Advanced Member Aldershot (we are top of the league, say we are...) |
15th Mar, 2008 at 10:25:14pm
mine is as metro turbo states, 4psi upto about 4000rpm then it gradually increases to about 7psi near the red line
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2096 Posts Member #: 1111 Post Whore s wales |
19th Mar, 2008 at 01:21:17am
and what is the best option to replace the ecu with?i will want to run about 7 psi of boost. im familiar with na builds, turbos are new teritory to me. many thanks |
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 7265 Posts Member #: 1268 The Boom Boom speaker Police! Essex |
19th Mar, 2008 at 08:38:11am
Replace with a bleed valve.
In the 13's at last!.. Just |
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 4559 Posts Member #: 786 Post Whore Bermingum |
19th Mar, 2008 at 08:39:37am
Hi,
VEMs Authorised Installer / Re-seller. K head kits now available!
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2096 Posts Member #: 1111 Post Whore s wales |
20th Mar, 2008 at 03:13:04pm
do bleed valves come pre set,eg, only allow 7psi boost? also is there a guide on here to fitting one? where is the best place to get one?many thanks |
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 6274 Posts Member #: 509 Post Whore Isle of Man |
20th Mar, 2008 at 05:29:29pm
just fit it fully open, so its letting all the pessure through to the actuator (i.e. not bleeding off any pressure), then gradually increase the amount bled off bit by bit till you have the desired boost level.
"Turbo's make torque, and torque makes fun"
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7265 Posts Member #: 1268 The Boom Boom speaker Police! Essex |
20th Mar, 2008 at 05:38:54pm
Whilst using a boost gauge!!!!
In the 13's at last!.. Just |
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2096 Posts Member #: 1111 Post Whore s wales |
23rd Mar, 2008 at 12:09:49am
so if i fit a '7psi' actuator and a bleed valve it will be limited to 7psi when on boost? |
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 1060 Posts Member #: 588 Post Whore Delaware, USA |
23rd Mar, 2008 at 12:13:21am
On 23rd Mar, 2008 welshdan said:
so if i fit a '7psi' actuator and a bleed valve it will be limited to 7psi when on boost? Fit a 7psi actuator OR a bleed valve. A bleed valve bleeds off some of the pressure so that a 4psi actuator only "actuates" when 7 psi is available, 4psi goes to the actuator and 3psi is bled off to the atmosphere. If you have a 7psi actuator you dont need a bleed valve.. Edited by Turbo Tel on 23rd Mar, 2008. website:- http://www.terryhunt.co.uk
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2096 Posts Member #: 1111 Post Whore s wales |
23rd Mar, 2008 at 12:29:08am
so a 7psi actuator, the engine will run on boost all of the time, at 7psi? |
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1060 Posts Member #: 588 Post Whore Delaware, USA |
23rd Mar, 2008 at 12:31:11am
On 23rd Mar, 2008 welshdan said:
so a 7psi actuator, the engine will run on boost all of the time, at 7psi? Yes website:- http://www.terryhunt.co.uk
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2096 Posts Member #: 1111 Post Whore s wales |
23rd Mar, 2008 at 12:35:07am
great. so what if i fitted a standard metro turbo actuator? are these set at 4 or 7? many thanks |
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1060 Posts Member #: 588 Post Whore Delaware, USA |
23rd Mar, 2008 at 12:39:00am
Edited by Turbo Tel on 23rd Mar, 2008. website:- http://www.terryhunt.co.uk
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2096 Posts Member #: 1111 Post Whore s wales |
23rd Mar, 2008 at 12:42:48am
cheers.thanks for your help. any idea what cars were fitted with 7psi ones, what is compatable etc? someone said montego (i think) turbo, will have a hard time finding one of those though. |
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