Drag racing help / Advice to a UK Lancer Evo 2 please

[glosjammer]

Hello,

I own evo123.net (I know some of you from there im sure).

I also own a 1994 Lancer Evo 2 RS which I am looking to take to the drag strip this spring. Drag isnt big in the UK so I thought I would come over to the experts and get some real advice.

What suspension should I run? ie height, stifness etc etc?

What tyre pressures are best?

What sort or Aero mods should I do to get the very best times?
Im thinking rear arch covers, under trays, lose mudflaps etc etc etc.


Thanks to all who reply.

Martin

 

[habitatguy187]

Post up your current mod list and your expected/wanted times and we'll be able to help you out more. Also how much does an evo 2 weigh? Do you know the weight ratio (55% front/45% rear)

 

[Choch1]

You have come to the right place for the advise you seek. However I am not the guy to give it to you, I just wanted to ask you to post a pic.

 

[slinarez25]

I'm here for the pic too.

 

[glosjammer]

Here is a pic from my first outing the other day at santapod.

1. Front Aero as you can see is aweful (last min issue)
2. The o2 housing is too big and cant control boost so I was only able to do 1/2 throttle in 4th and 5th
3. No launch control
4. 100,000 kms supension
5. Only running about 300BHP

All to be fixed on my next outing on the 17th April

it ran 11.75 @ 116.5

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www.evo123.net - UK Forum for All early DSM's and Evos.

By popular request here is a brain dump of all the things I have done to my car to make it XXXKGS.

Coming soon.

Original Model : 1994 Lancer Evo II RS
Original weight : 1180KGS
Target Weight : 8XXKGS

Bodywork
Carbon Boot
Carbon Roof
Carbon Bonnet
GRP Front bumper
GRP Rear bumper
GRP Doors all round
Lexan Windows - 7 pieces
GRP Wings
All steel bodywork bolts changed for ally.
No Arial
No Rear spoiler
Roof diffuser
Drivers only Mirror (WRC)
Custom built Flat under trays
Removed Towing Eyes
Removed Bumper bars
Rear 3 point Strut brace
Cusco front Under brace

Interior
100% Strip including Dash
All bolts / non essential fixings ground back
Kevlar Seat with custom Ally subframe
Cut back Wiring loom.


Wheels & Tyres
OZ Magnesium 15" Wheels
Rays Titanium wheel nuts
195 55 15 Toyo T1R's


Brakes
Wilwood Dynalite calipers
Removed Dust Shields
Ally Bells and lighter discs all round

Engine bay
Aircon removed (complete)
Power steering removed and converted to Manual
Lightweight battery
Removed all over engineered metal parts
Cut battery tray
Converted IC pipework to HKS Ally
Non load bearing bolts changed to ally
Light weight air intake.
Capped Heater matrix at earliest point
Carbon Rad clamps
Light weight washer fluid
Custom 3" Exhaust
Boost solenoid removed.
Ally Radiator

Engine tuning
Walbro 255l
SARD FRP
BC 272 cams
Cam gears
Apexi Air filter
Custom 3.3" Exhaust - turbo back inc O2 Housing
ACT Clutch and Molalloy flywheel.

Suspension

I'm here for the pic too.

 

[habitatguy187]

Nice time for your first outing! What was your 60' time? 195 tires are pretty skinny. I did a google search on kg though and the stock weight is already super low, for sure helping with your times.

And what do you mean the o2 housing is too big? Usually you only hear about them being too small and the wastegate gasses not being able to get out fast enough, resulting in what's called boost creep (boost psi rising and rising).

Not trying to make you sound like an idiot but I didn't recognize some of the words you used so I'm just guessing you might not know all of ours.

 

[glosjammer]

Not wishing to teach anyone to suck eggs, I ahve been racing and tuning turbo cars for over 15 years... let me explain.

The 16G turbo (in its standard form & setup inc exhaust) is self restrictive by the cat and Boxes. when you take those away, and in this case add a Very large elbow you create an extremley free flowing system. The 16G's internal wastegate simply cannot cope with this amount of free flowing gasses and as a byproduct they get forced out of the Hotside wheel, thus creating boost spikes or boost creep.

The way to solve this is to either port the Wastegate, Change teh actuator for one that opens father (longer travel) or use an external wastegate. I am opting for a new turbo with a VERY heavily ported wastegate.

The stock weight for a 2 RS is 1180 KGS+Driver, I rekon I am close now to mid 900's with Driver.

My next run is on teh 17th April so will keep you updated.

Nice time for your first outing! What was your 60' time? 195 tires are pretty skinny. I did a google search on kg though and the stock weight is already super low, for sure helping with your times.

And what do you mean the o2 housing is too big? Usually you only hear about them being too small and the wastegate gasses not being able to get out fast enough, resulting in what's called boost creep (boost psi rising and rising).

Not trying to make you sound like an idiot but I didn't recognize some of the words you used so I'm just guessing you might not know all of ours.

 

[jestoy7]

I've drag raced before, but I'm not an expert in suspension setups for drag racing. The suspension in the Evo is the McPherson strut similar to the 1g. I would look at what setups some of the fastest 1g's have and find similar applications. With your height, the car is probably transferring a lot of that power in suspension travel.

So you are still on the 16g, sound like it. What about fuel injectors and tuning software?