The G readings looked OK to me. As far as I know you can mount the box in whatever orientation you like and it makes no difference to the readings
The Doune course looks very narrow
Madmac Motorsport's Twincharged Evo 5
During the winter build of the old Evo 5 hillclimb slag I decided to look at ways of reducing the turbo lag which was becoming an issue and costing precious hundredths of seconds on the hills last year. It never lacked top end power but the lag really started to get to me and i knew i could make it quicker point to point by reducing the lag - but keeping top end power.
I looked at many possible ways to do this but in the end settled for adding a supercharger to run in conjunction with the turbo.
Designed and built by myself with input from friends and members on MLR, most parts have been fabricated in my garage from whatever was lying around, the end result has been worth the blood, Sweat and tears I've put into this.
We've had her on the dyno at Wallace Performance in Aberdeen and had surprisingly few teething problems considering the unknowns and the huge amount of bespoke parts that needed to be designed, fabricated and made. Initial mapping is done now and the whole package is showing some serious potential! We've decided to keep the system at it's minimum until i do reliability tests and learn how to drive it properly :angel:
I've also designed and built a tubular front subframe and arms (total 9Kg) to reduce front weight and while i was at it, it seemed rude not to play with the suspension geometry!
I want to thank a few people for their input and help:
Russ and the guys at Wallace Performance who did the mapping and supplied parts/tea/banter etc. Top guys and never ones to shy from a challenge! Can't thank you enough:smthumbup. http://www.wallaceperformance.co.uk/
My mate Steve Marr who is the main technical guru, and who i regularly bugged to ask lots of questions on a daily basis:smthumbup.
My mate Graeme Wight Jnr for his help with the front subframe and major suspension geometry changes, Exhaust and general setting up
Alan Young Engineering Ltd for the quality machined bespoke pulleys and parts, Spot-on parts and great prices http://www.timingbeltpulleys.co.uk/pages/home.php
And everyone else who suffered because of my constant lust for knowledge during the build:smthumbup
As yet i've to do some miles and get her setup for the start of the 2010 Scottish Sprint & Hillclimb Championship, so for the moment i'm being realistic about expectations & screwing the nut until i check everything over and get used to driving it. Hoping to do some track testing soon though. I've had her out for a short drive and so far the whole package is working impressively. Instant delivery at anything above 2500rpm with absolutely awesome accelleration in every gear! This is on it's lowest boost setting too....
Over the next few months The guys at Wallace Performance & I are going to refine some of the setup and see what she's really capable of! We know we can find a lot more power & torque with some simple changes.
Meantime i'm happy with the initial results and looking forward to Doune Hillclimb in 2 weeks Should be fun!
Keep watching....
I looked at many possible ways to do this but in the end settled for adding a supercharger to run in conjunction with the turbo.
Designed and built by myself with input from friends and members on MLR, most parts have been fabricated in my garage from whatever was lying around, the end result has been worth the blood, Sweat and tears I've put into this.
We've had her on the dyno at Wallace Performance in Aberdeen and had surprisingly few teething problems considering the unknowns and the huge amount of bespoke parts that needed to be designed, fabricated and made. Initial mapping is done now and the whole package is showing some serious potential! We've decided to keep the system at it's minimum until i do reliability tests and learn how to drive it properly :angel:
I've also designed and built a tubular front subframe and arms (total 9Kg
) to reduce front weight and while i was at it, it seemed rude not to play with the suspension geometry!I want to thank a few people for their input and help:
Russ and the guys at Wallace Performance who did the mapping and supplied parts/tea/banter etc. Top guys and never ones to shy from a challenge! Can't thank you enough:smthumbup
. http://www.wallaceperformance.co.uk/My mate Steve Marr who is the main technical guru, and who i regularly bugged to ask lots of questions on a daily basis:smthumbup.
My mate Graeme Wight Jnr for his help with the front subframe and major suspension geometry changes, Exhaust and general setting up
Alan Young Engineering Ltd for the quality machined bespoke pulleys and parts, Spot-on parts and great prices http://www.timingbeltpulleys.co.uk/pages/home.php
And everyone else who suffered because of my constant lust for knowledge during the build:smthumbup
As yet i've to do some miles and get her setup for the start of the 2010 Scottish Sprint & Hillclimb Championship, so for the moment i'm being realistic about expectations & screwing the nut until i check everything over and get used to driving it. Hoping to do some track testing soon though. I've had her out for a short drive and so far the whole package is working impressively. Instant delivery at anything above 2500rpm with absolutely awesome accelleration in every gear! This is on it's lowest boost setting too....
Over the next few months The guys at Wallace Performance & I are going to refine some of the setup and see what she's really capable of! We know we can find a lot more power & torque with some simple changes.
Meantime i'm happy with the initial results and looking forward to Doune Hillclimb in 2 weeks
Should be fun!Keep watching....
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The Doune course looks very narrow
Great stuff Donald, and glad to see you've got the Vbox sorted. Any chance you could let Kenny1 or I have one or two of the data files for the timed runs? What I'm particularly keen to see is G force data - both lateral (to see how the avons are working) and longitudinal (to see both grunt and braking power). From looking at the readouts from the vid there are some biggish numbers going on
Speedo reading surely has to be way out
Do tell more
So you beat Donald by quite a margin
Lots more info required - new thread perhaps?
The incar video makes everything look very smooth and relaxed. Just a pity you didn't have a bit more competition from the likes of Paul and Kenny.
One thing I couldn't quite work out was whether you were in first or second on the tight corners. Looked like second, although I thought you quick guys quite often got down to first for the really tight corners
Oh, and can you please explain exactly what a "false neutral" is. Between eg 4th and 3rd is there a position where the dog ring(?) can sit that isn't contacting either gear (ie in a "neutral" position)?
One thing I couldn't quite work out was whether you were in first or second on the tight corners. Looked like second, although I thought you quick guys quite often got down to first for the really tight corners
Oh, and can you please explain exactly what a "false neutral" is. Between eg 4th and 3rd is there a position where the dog ring(?) can sit that isn't contacting either gear (ie in a "neutral" position)?
How many gearchanges in each data record? You might need to add, say another 0.1 (or take if off if both included two changes) to the combined. Extremely quick either way
Well done Donald:smthumbup Looking at the vid I see the speed readout drops to zero for a while I wonder if you lost satellite coverage or might there be some kind of issue with the Vbox?
I wonder if you lost satellite coverage or might there be some kind of issue with the Vbox?
Haven't you got better things to do with your time:crackup:Is yours a hatchback then Phil?
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