Madmac Motorsport's Twincharged Evo 5

Madmac · 02-04-2010, 21:52

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

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

. 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

.

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

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....

leecavturbo · 02-04-2010, 21:58

brilliant mac

where is it hiding ?

evonut270 · 02-04-2010, 22:02

very nice work donald.which charger did you opt for?im assuming it would be similar to a rotrex given the space constraints.

neverneverman · 02-04-2010, 22:04

Quote:

Originally Posted by leecavturbo

brilliant mac

where is it hiding ?

Tucked away!

Looks spot on Donald, looking forward to having a proper look at it at Doune

Madmac · 02-04-2010, 22:08

Lee, she'll be out of hiding soon enough

As this has been a lot of time and planning. Can't go giving out secrets like that! I need to keep the advantage over the competition for as long as possible

Conrad · 02-04-2010, 23:35

Excellent, looking forward to seeing more pics of the setup

Andy_8 · 03-04-2010, 08:08

Brutal!
Looking forward to seeing more!

W17NNY · 03-04-2010, 08:16

Sounds good Donald, look forward to see this in action, good luck with it.

Well done all at Wallace performance for building/mapping some serious cars over the past few years.

The Admiral · 03-04-2010, 09:21

Sounds like it should be Fantastic m8

Rog

EVILUTIONXXX · 03-04-2010, 10:01

I remember seeing you at Wallace Performance, a few months back now....
The car looks great,and sounds like it will be real SLAG!

Well done Donald, for all the hard work mate!

It has obviously payed off!

The boys at Wallace are very helpfull, good bunch of lads!

Andy

4G63EvO · 03-04-2010, 11:12

Well done Donald and all the best for the hill championship and looking forward for some videos.

Jon.

JimBFC · 03-04-2010, 11:19

Good stuff Donald, pushing the boundaries mate. Be good to see what the power delivery is like when you've got it all fettled and happy with it.

Christopher · 03-04-2010, 11:35

Quote:

Originally Posted by W17NNY

Sounds good Donald, look forward to see this in action, good luck with it.

Well done all at Wallace performance for building/mapping some serious cars over the past few years.

+1

You are a clever guy,Donald,hats off to you

Chris

Unobtainium · 03-04-2010, 11:36

Catch him if you can boys

Good luck this season Donald!

weekenny · 03-04-2010, 11:45

Awesome mate.

You really have been pushing the boundaries with this car, flat floor... fuel cooler... revised wing designs... now this great stuff.

02-04-2010, 21:52	#1
Madmac Twincharger Guru Join Date: May 2003 Location: Stonehaven, Aberdeenshire Car: Evo 5 850hp Hillclimb twincharger & Manual Legnum VR4 Type S Posts: 4,544	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 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. 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. 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 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.... Attached Images __________________ "Understeer" is when you hit the fence with the front of the car. "Oversteer" is when you hit the fence with the rear of the car. "Horsepower" is how fast you hit the fence. "Torque" is how far you take the fence with you.

02-04-2010, 21:58	#2
leecavturbo Registered User Join Date: Dec 2004 Location: Tamworth Car: Evo8 MG Full Cosworth 2.2L/r stroker,Blouch xtr760,syvecs 9.8sec 30-130 Posts: 11,985	brilliant mac where is it hiding ? Last edited by leecavturbo; 02-04-2010 at 22:01..

02-04-2010, 22:08	#5
Madmac Twincharger Guru Join Date: May 2003 Location: Stonehaven, Aberdeenshire Car: Evo 5 850hp Hillclimb twincharger & Manual Legnum VR4 Type S Posts: 4,544	Lee, she'll be out of hiding soon enough As this has been a lot of time and planning. Can't go giving out secrets like that! I need to keep the advantage over the competition for as long as possible __________________ "Understeer" is when you hit the fence with the front of the car. "Oversteer" is when you hit the fence with the rear of the car. "Horsepower" is how fast you hit the fence. "Torque" is how far you take the fence with you.

03-04-2010, 08:08	#7
Andy_8 Registered User Join Date: Nov 2006 Location: The Blue Planet Car: Evo VIII 260 "Standard".... tee hee Posts: 2,315	Brutal! Looking forward to seeing more! __________________ Ex-Evo VIII 500+

03-04-2010, 08:16	#8
W17NNY Keep er lit! Join Date: May 2005 Location: North East Scotland Car: X RS, 991.1 GT3 RS Posts: 4,193	Sounds good Donald, look forward to see this in action, good luck with it. Well done all at Wallace performance for building/mapping some serious cars over the past few years. __________________ Who would have thought the letters R&S would have attributed so much to ones life To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

02-04-2010, 22:02	#3
evonut270 Senior User Join Date: Dec 2003 Location: Scotland Car: evo 2 with an 8 ecu Posts: 7,655	very nice work donald.which charger did you opt for?im assuming it would be similar to a rotrex given the space constraints.

02-04-2010, 23:35	#6
Conrad #armchairtuner Join Date: Dec 2004 Location: Singapore / UK Car: AE86 & EvoGTR project Posts: 8,722	Excellent, looking forward to seeing more pics of the setup

03-04-2010, 09:21	#9
The Admiral Registered User Join Date: May 2004 Location: Bonnie Scotland Car: Ex IV GSR & VIII MR RS Posts: 13,139	Sounds like it should be Fantastic m8 Rog __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

03-04-2010, 10:01	#10
EVILUTIONXXX Registered User Join Date: Nov 2008 Location: Aberdeen Car: Evo VIII 403/370 Mapp'd @Wallace Per4mance,AVCR,3"bore i.d/JMF Mani,264/272' cams, IX 80Series Turbo Posts: 4,684	I remember seeing you at Wallace Performance, a few months back now.... The car looks great,and sounds like it will be real SLAG! Well done Donald, for all the hard work mate! It has obviously payed off! The boys at Wallace are very helpfull, good bunch of lads! Andy __________________ Getting Strokered......... Mapp'd @ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.* *To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.*

03-04-2010, 11:12	#11
4G63EvO Registered User Join Date: Apr 2007 Location: Sunny Malta. Car: One eyed IV with Autronics SMC, AMS cooler, Carbotech XP8s well just see under "my car" for details. Posts: 18,573	Well done Donald and all the best for the hill championship and looking forward for some videos. Jon. __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

03-04-2010, 11:19	#12
JimBFC Registered User Join Date: Apr 2007 Location: Tarn Car: running lean on a dyno near you....pmsl Posts: 12,441	Good stuff Donald, pushing the boundaries mate. Be good to see what the power delivery is like when you've got it all fettled and happy with it.

03-04-2010, 11:36	#14
Unobtainium Registered User Join Date: Aug 2005 Posts: 36,178	Catch him if you can boys Good luck this season Donald! __________________ My latest thread: To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

03-04-2010, 11:45	#15
weekenny Registered User Join Date: Mar 2004 Location: Glasgow Area-ish Car: EVO VI GSR Posts: 3,217	Awesome mate. You really have been pushing the boundaries with this car, flat floor... fuel cooler... revised wing designs... now this great stuff. __________________ Evolving III -> VI

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