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(Post Link) post #1 of 33 Old 06-03-15 Thread Starter
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Racing and trackdays!

You know, why is there not a sub forum on this ?
Are there so few of us nuts that do trackdays, or even race Alfas ?

Well let me kick off then!
I do trackdays in my 156 GTA, and I have an itch to make it more of a trackday machine.
roll cage, seam welded, custom coilovers, changed geometry, and all the fun little things that make the car a little bit faster.

What do you think of that idea ?
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Next week is our 8th International Alfisti track day at Serres Racing circuit. It will be 3 day event
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Very good
In Ireland, T.I. Autos is arranging a trackday in May:
https://www.alfaowner.com/Forum/repub...ay-2015-a.html
Which is good fun with a good mix of various Alfas each time!
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Quote:
Originally Posted by cannotstop View Post
What do you think of that idea ?
IMHO maybe the very first thing to do is to modify the front suspension for:
- less unsprung weight
- more caster
- stiffer ARB
- wider front tyres......
Removing weight from front axle benefits a lot.
156's had V6 engine that sits forward front axle and it cause a lot of understeer.......
When i did FWD to RWD conversion, the mod that gives biggest laptime improvement was all custom made front and rear suspension arms, with custom front subframe as well......
156 can be fun to drive but there is a lot of work to be done.....
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Try moving the battery to the boot and go with a custom CF hood. Try a reverse stagger setup (wide front tires and, narrower rear tires) to promote a bit more oversteer, add a strutbar, remove A/C compressor, put an electric power steering and relocate it behind the front axle. At least those are some mods I could think of.
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I have 2 race cars at the moment.

I started with my 146 way back and built it up trackday-ish over time. As parts needed changing, I changed with the uprated version. Then I got my 156 V6 and did the same... up to the point where guys told me I do quick and consistent times - I should consider racing - which I did.

I took our local series title in 2013 , last year I was blessed with a baby girl (so very little racing) and this year I've taken the 1st race weekend's win

1st race car thread:
https://www.alfaowner.com/Forum/south...-a-newbie.html
2nd race car thread:
https://www.alfaowner.com/Forum/south...cer-build.html

The quickest / cheapest way to make a V6 fast around a track is - in order of cost / benefit ratio:
Weight shedding (read Evo75 post)
Coil-over suspension.
braided hosed 305mm front brakes with ferordo DS300 or equivalent pads (I use Endless ME20). DECENT Dot4 fluid (275+degC)
Top strut brace
Bottom sub-frame welded up
Stiffer ARB (at the back at least).
Semi-slick tires
Q2 / Quaife diff
Rollcage - this helps stiffen chassis, but is your safety concern when to do it - push it up the list.

I vote the geometry is ok enough on 156, you gain camber when you drop the coil-over suspension anyway You can make rose jointed control arms for the rear to set even more rear camber and more aggressive toe out.. need very stiff rear ARB to make use of rear wheel steer in FWD car

Last edited by Gertie; 10-03-15 at 09:47.
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Another very good thread to read:

https://www.alfaowner.com/Forum/motor...a-project.html
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Just changed my rear brake pads and bearings today....moved from 305mm to 330mm in the front...as the 305mm are not up to the job.

About changes to the car...well since I bought it brand new in 2003...basically the chassis and carpet is original...everything else is modified or changed. The car is around 300hp

Something from a few years back
https://www.youtube.com/watch?v=X4LWvi8L0KU

https://www.youtube.com/watch?v=z7EkTPK4nfM

And the promo for this year:

https://www.youtube.com/watch?v=2HxxZ1g_zzI
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(Post Link) post #9 of 33 Old 11-03-15 Thread Starter
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Nice!
Its a diesel then ?
Unusual!

nice video!
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They are many more videos...just search: Alfisti Serres...in youtube and you should see them.

Yep the car is JTD 1.9 16v euro3 engine...used to be 8valve 115hp version :-)

p.s: BUT yes, I think also that we should create a sub forum for track days
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Here is my YouTube contribution:

Our local track is Mondello Park:
https://www.youtube.com/watch?v=CJ_I1L4u-5I
Which is great, a technical track with many different corners and teaches you car control
This is also the track for TiAutos Alfa only track day in May

...but it rains often:
https://www.youtube.com/watch?v=BWQ7Qlq6hwU

However, I hope to make it into a habit of visiting other tracks.
We have two other tracks in Ireland, and of course UK is but a stones throw away...

Here is one from a visit to Kirkistown... ups..
https://www.youtube.com/watch?v=rFIfevYYw68

2003 156 GTA Selespeed - Alfa Rosso + black multispokes, Eibach anti rollbars, Quaife ATB diff, 330mm brakes, Bilstein B12, De-cat wrapped manifolds + EQ downpipes + Ragazzon silencer, CDA intake, (carefully) removed interior & Sparco bucket seats + 6 point harness
2002/6 156 JTS Selespeed - Full Ti interior, late model camshafts, Supersprint manifolds, Ragazzon silencer
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Quote:
Originally Posted by cannotstop View Post
Here is my YouTube contribution:
Nice vids (Oops on the lift-off oversteer in Kirkistown ). How is the Quaife holding up for you? Seems solid with little spin-up - even in the rain . I have a Q2 in my 3.0 SW and I like it.

Also how is the Selespeed on the 3.2? It sounds great

I want to put LSD in my TS racer and some guys I speak to are adamant plate-type LSD is the way to go for a track / race car. For the extra effort and money to find the said plate-LSD - I am not convinced it is better than ATB.
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My Youtube contribution:

156 trackday - buggered power-steering and trying a bit hard causes some off-track time and lift-off oversteer
https://www.youtube.com/watch?v=aLyHTsJsxvQ

GTV race 1 Midvaal - consistency wins the race
https://www.youtube.com/watch?v=ropNzu4BK3E

GTV race 2 Midvaal - some last minute action
https://www.youtube.com/watch?v=TUKot_91xDs
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Nice one Gertie!
Why are your starts stepped like that ?
Do you have multiple classes in one race ?
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Quote:
Originally Posted by Gertie View Post
Nice vids (Oops on the lift-off oversteer in Kirkistown ). How is the Quaife holding up for you? Seems solid with little spin-up - even in the rain . I have a Q2 in my 3.0 SW and I like it.

Also how is the Selespeed on the 3.2? It sounds great

I want to put LSD in my TS racer and some guys I speak to are adamant plate-type LSD is the way to go for a track / race car. For the extra effort and money to find the said plate-LSD - I am not convinced it is better than ATB.
Thanks!
The Quaife is great! It is very progressive under power, so you can use it well coming out of corners, applying more and more power as you straighten the wheels.

The plate type LSDs are supposedly even better for racing, but of course have to be maintained with new clutches, and, from what I know, are not advisable to use in normal traffic, so I did not go down that option. I am sure someone more technical than me would explain them better than me

The Selespeed is fantastic. It takes some patience to learn to maintain (pretty complex system) but when it works, I would not trade it for the world.
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Quote:
Originally Posted by cannotstop View Post
Nice one Gertie!
Why are your starts stepped like that ?
Do you have multiple classes in one race ?
We race handicap style, slowest qualifier start 1st and they time the pull aways so that if everyone stick to their qualifying times all should finish simultaneously. But that is impossible, so at the end the most consistent driver wins

This allows cars of all capabilities to be competitive, no classes needed.
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So tell me guys, in relation to harnesses, do you recommend 4 or 6 point harnesses ?
From what I have read, 6 is the way to go, even if they are harder to get on and sit comfortably in.
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I think you have answered your own question, but it depends on what seat you have. If the seat does not have the center bottom hole (s) where the center straps can go through, there is little point in a 6 point harness, then a 4 point will keep you more at one with the seat.
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The Alfisti track day is finished so I do have to upload a lot of videos and pics.

My Koni-FSDs (with eibach pro-kit) are finally dead which didn't allow me to do any proper laps on Sunday when the track finally become almost dry...the only thing I manage to do is kill two brand new rally slicks Pirelli RS5 which otherwise should have lasted a few track days :-( So I decided to stop and preserve my other tires. As the front wheels were jumping under acceleration the tires tend to set themselves on fire. The ceramic clutch also didn't hold even do I haven't set my car on the high power map...so I will look for another solution.

So now I am considering the KW v3, Intrax HDA or the D2 circuit coilovers???? Any opinions will be much appreciated about these or any other coilover kits. I am not in a hurry to change them so I have at least a few months to look for opinions and deals.

Alfa 147 QVD 300hp by BlackAngels, Alfa 159 2.4 QVD, Alfa 159 TI 1.9 QVD and Crosswagon edition Nero, Alfa Stelvio 2.2 Q4
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I bought the D2 coil-overs originally for my 156 V6 SW that I did track-days with. Then I bought a 156 2.0TS racer and I built the D2s into the racer and got GTA (OEM) for the SW again.

I find the D2 fantastic for track days. I like the adjust-ability of it
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Gertie do you have any pictures of your D2....it is really hard to find any opinions on D2 and Alfas...

are they anything like these 100_0866.jpg Photo by aussiebmw | Photobucket
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Quote:
Originally Posted by kgb View Post
Gertie do you have any pictures of your D2....it is really hard to find any opinions on D2 and Alfas...

are they anything like these 100_0866.jpg Photo by aussiebmw | Photobucket
Not quite the same - with the double wishbone up front, you cannot set the camber that easily - you'll have to modify the top wishbone.

Here is a link to the options:
www.d2racingsport.com
Attached Images
File Type: jpg D2shocks156content.jpg (98.8 KB, 10 views)
File Type: jpg D2shocks156rearCompare.jpg (126.7 KB, 10 views)

Last edited by Gertie; 24-03-15 at 09:53.
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Big thanks for the pictures.

If you had to write a review of the D2 coilovers what would you say
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Quote:
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Big thanks for the pictures.

If you had to write a review of the D2 coilovers what would you say
My review will be: The package is well made with good attention to the finishing details, all very well anodized that help its fresh appearances for long. Installation is easy (easier than OEM) and adjustments are intuitive and easily done in position (just lift the weight off the wheel). Performance wise they allow you to spec your specific spring stiffness - I went for the standard package that is 20kg/mm front and 12kg/mm rear.

Having the damp rate set to 1/2 in a road car the fronts are livable, but the rears where "crashy" (harsh) at the rear - with the rear set to the softest it is livable again, but still borderline hard. In my racer I had it on the hardest setting rear and 3/4 front and dropped the suspension quite low and it handled very well. Body roll is at a minimum and turn in is quick and very responsive.

If I were to buy it again I would, I think it is good value for money.

Last edited by Gertie; 26-03-15 at 03:55.
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Excellent review and once again Big thanks. As I really struggle to find any info on D2 circuit (will send them an email) from what I understand they are compression and rebound adjustable?
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