Alfa Romeo Owners Club of Australia Forum

Technical => 932 Series (156, GTV, Spider, 147, GT, and 166) => Topic started by: Cowie on December 25, 2019, 05:45:39 PM

Title: 147 Gta rally car
Post by: Cowie on December 25, 2019, 05:45:39 PM
Some of you may remember way back when I claimed I intended to build a 147 Gta rally car,  well it's all but done. I tried to attach a video on the dyno, but apparently it's too large. I'll try some pics instead.
I have learnt a lot about these cars in the process, more than I ever wanted to   :D
Nope all my pics are too large to attach, open to suggestions 
Title: Re: 147 Gta rally car
Post by: bonno on December 25, 2019, 07:22:59 PM
Hi Cowie
Try uploading video on Youtube or your Facebook page, then provide a link to it. For photos you need to reduce the size of file, then you can attach a maximum of 4 photos per post, refer to the following link on this forum  "How To Sticky"
http://www.alfaclubvic.org.au/forum/index.php?topic=55.0
Title: Re: 147 Gta rally car
Post by: Cowie on December 26, 2019, 07:30:16 PM
Thanks bonno. The pics are on a Samsung phone which only seems to take pics that exceed 3mb, and it won't let me resize them, but I'll keep playing with it.

I am not on facebook, but a couple of mates and I have a page for our rallying shenanigans called Inverted Motorsport. The dyno vid is on there now.

It made 248 hp at the wheels at 7300 on a bone stock engine, just throttle bodies bolted to it. I will only rev it to 7 due to the hydraulic lifters, and the injectors peaked at 98% duty cycle, so I will go with bigger ones for a bit of a safety margin.

I was never chasing more grunt. I concentrated on all the other bits that actually make rally cars fast  ;)
Title: Re: 147 Gta rally car
Post by: Cowie on December 26, 2019, 07:38:53 PM
Turns out I just mms pics to myself and then they are resized
Title: Re: 147 Gta rally car
Post by: bonno on December 26, 2019, 08:05:49 PM
Hi Cowie
Just viewed the Facebook video and engine sounds impressive, this combined with a Q2 differential should make for a fun Rally car.
Facebook link
https://www.facebook.com/watch/?v=475070900073601&external_log_id=172025366d1532bf7e6b07a12775b7c1&q=inverted%20motorsport   
Title: Re: 147 Gta rally car
Post by: Cowie on December 26, 2019, 08:13:09 PM
Cheers bonno. But not a Q2 diff which is a torsen, and hence doesn't actually work, it's a plate type diff, 140nm preload and 30 / 60 degree ramp angles
Title: Re: 147 Gta rally car
Post by: Cowie on December 26, 2019, 08:16:10 PM
Here's some more. That bonnet weighs 1.8 kg. I went with 4 bonnet pins because the standard hinges also weigh 1.8 kg, and we couldn't have that !!
Title: Re: 147 Gta rally car
Post by: Cowie on December 26, 2019, 08:18:55 PM
And thanks for putting up the facebook link Bonno, I didn't know how to do that
Title: Re: 147 Gta rally car
Post by: Paul Byrne on December 28, 2019, 04:07:58 PM
G'day Cowie,
The 147 looks good and competitive. Not sure if you are going to compete on tarmac or dirt, but thought it might be worth mentioning that any event above club level needs a registered cage. Maybe yours is already registered? If not and it will be, there are a couple of issues from the photos that you might want to have a look at. Appendix J of the CAMS (Motorsport Australia) regs   has the details, but the current cage appears not yet to have gusseting on all crossing members, such as the X in the main hoop and in the roof cross. Also the regs require the door bar/s to be gusseted where they intersect the windscreen pillar reinforcement bar. At state comp level and above two door bars each side are required.
You may well have this stuff covered! Just thought it worth mentioning as we have just been through the process during the rebuild of the 105 GTV tarmac rally car.
Cheers
Title: Re: 147 Gta rally car
Post by: Cowie on December 28, 2019, 05:34:14 PM
Thanks Paul, yes you're dead right, it's a mine field. But the car is already logbooked so no issues there. I would have been competing this year if not for some niggling electrical issues, hence the delay of getting it on the dyno.
It is built for gravel, the underbody protection and sump guard are not on for the pics. But it will be a bit of a weapon on tarmac too, no doubt I will give a tarmac rally a go at some stage
Title: Re: 147 Gta rally car
Post by: Paul Byrne on December 30, 2019, 04:14:13 PM
Targa Great Barrier Reef, September 2020!!
Title: Re: 147 Gta rally car
Post by: warsch on January 03, 2020, 01:08:27 PM
What brand are the shocks? And what are the spring rates
Title: Re: 147 Gta rally car
Post by: Cowie on January 06, 2020, 08:45:52 PM
They are MCA.
140 lb rears and 300 lb fronts, due to the 0.75 motion ratio in the front end
Title: Re: 147 Gta rally car
Post by: Cowie on January 06, 2020, 08:47:41 PM
Remote reservoir fronts, didn't feel it was necessary in the rear, not much weight at all back there.
Title: Re: 147 Gta rally car
Post by: bazzbazz on January 06, 2020, 10:06:10 PM
FINALLY!

Someone who knows the correct place for the Fire Extinguisher.   8)
Title: Re: 147 Gta rally car
Post by: warsch on January 07, 2020, 01:08:35 PM
Quote from: Cowie on January 06, 2020, 08:45:52 PM
They are MCA.
140 lb rears and 300 lb fronts, due to the 0.75 motion ratio in the front end

Yeah, I calculated the motion ratio recently while doing my own research.

So yours are 2.5 kg rear and 5.2 kg front. About the stock rate for rear and a bit harder at the front.

I'm really keen to see it all in action. Please tell when it's possible, i.e. what race you'll be running.
Title: Re: 147 Gta rally car
Post by: MattyG on January 21, 2020, 12:04:20 PM
This is the one to get.
Saved Jack Monckhouse' life

http://elidefire.com.au/

Awesome build
Title: Re: 147 Gta rally car
Post by: julianB on February 02, 2020, 06:53:59 AM
Are they the AHM throttle bodies and back plate for the air filter or did you do something different?

Looks great!
Title: Re: 147 Gta rally car
Post by: Cowie on February 06, 2020, 08:18:20 AM
Yes the Ahm throttle bodies, which are actually built by Jenvey, the kit was commissioned by Ahm.
That makes sense Warsch, as my car is a fair bit lighter than standard, even with a 50 kg cage and sump guard. They are not inherently heavy cars, just a lot of heavy crap in them.
I have seenthe fireballs Matty, but I believe they would only be useful in very specific situations. The handhelds would be much more useful 99% of the time. It has a plumbed in system too. Jack and Dale were actually out of the car before it lit up, no system would have saved them because the roof was full of fuel and it went bang. But I don't have a turbo which helps reduce the fire risk. Not all turbocharged rally cars burn, but the vast majority that burn seem to be turbocharged ........
Title: Re: 147 Gta rally car
Post by: Cowie on May 03, 2020, 05:51:34 PM
Here is the car all dressed up with nowhere to go....
Title: Re: 147 Gta rally car
Post by: Cowie on May 03, 2020, 05:53:12 PM
Another one
Title: Re: 147 Gta rally car
Post by: Cowie on May 03, 2020, 06:29:56 PM
Does anybody know if any Aus delivered 147's or 156's came on 15 inch wheels ?
I need to use a proper rally style wheel on the front for caliper clearance ( I have Braid wheels), but the rears could be a standard Alfa 15 inch alloy from to save some $$$.
Plus the rear wheels are the ones that get gravel blasted on a rally car, and it seems a shame to do that to a flash Braid wheel. 15 x 6 inch wheels would be perfect, offset not critical, but a 6.5 inch width could work too.
If anyone knows where I should start looking, or if I shouldn't bother because no such thing exists, then I would be grateful for any advice either way.
Cheers
Title: Re: 147 Gta rally car
Post by: philpot on May 03, 2020, 08:29:14 PM
Hi Cowie, My 1998 build (yes) 156 TS came factory with 15" x 6.5" steelies. That were fitted with 185/65x15 tyres. The same ones that were on it on Sale Of the Century when Ben Wong won the whole prize pool in mid '99. The steelies, with factory plastic hubcaps, came with the car as the mate of Ben I bought it off had fitted Selespeed 16'S on it. Also have been gifted a whole 2000 Sele that has the alloy 15 x 6.5 'Pepperpot' rims retrofitted, with factory 205/60 x 15" tyres (prob to  keep the 17" or 18"s that were on it... ) Have all three sets. U should have no probs buying any of them as people invariably want bigger and wider rims, strangely, these days ...  Images of both 15's are attached off original factory press release photos.

nb: Any Alfa wreckers should have them. Or they turn up on ebay and Gumtree often.

Or the whole car:     https://www.gumtree.com.au/s-ad/mount-hawthorn/cars-vans-utes/alfa-156-twin-spark/1247158138   
Title: Re: 147 Gta rally car
Post by: Cowie on May 10, 2020, 12:43:38 PM
Thank you philpot, I will ring around the wreckers, and also put something on the buy/swap/sell board. I have a few sets of 16 and 17 inch wheels that I would be happy to swap for 15's if any forum members were keen for some bigger wheels, so I'll see how I go.

Cheers
Title: Re: 147 Gta rally car
Post by: philpot on May 16, 2020, 10:49:29 AM
https://www.carsales.com.au/cars/details/1999-alfa-romeo-156-twin-spark-manual/SSE-AD-6648924/?Cr=9

Looks quite clean and original. In Qld too ... Buy, put bigger rims on and re-sell ?
Title: Re: 147 Gta rally car
Post by: philpot on May 18, 2020, 05:26:05 PM
https://www.facebook.com/marketplace/item/492093675066489/

Marc Panozzo. Milano Motors, Thomastown in Melb.
Title: Re: 147 Gta rally car
Post by: philpot on May 18, 2020, 05:29:28 PM
More
Title: Re: 147 Gta rally car
Post by: Cowie on May 19, 2020, 08:57:04 AM
 Thanks philpot, I think I have sourced some wheels in Sydney that actually come from a 164, $30 each.
They are 15 x 6, (preferable) whereas the 156 wheels I've been able to find are all 6.5".
Being in Sydney I'll be able to pick them up on the way to batemans bay rally in July, if it runs, and if QLD border restrictions have lifted to allow us to return home again.
Title: Re: 147 Gta rally car
Post by: Cowie on July 24, 2020, 09:41:35 AM
An action pic from Rally of the Bay on July 4
Title: Re: 147 Gta rally car
Post by: stuka on October 11, 2020, 12:26:35 PM
Looks like a great setup. What ECU are you using?
Title: Re: 147 Gta rally car
Post by: Cowie on November 15, 2020, 05:25:36 PM
It has a motec M130.
And a motec Pdm for the management of the electrics
Title: Re: 147 Gta rally car
Post by: warsch on June 15, 2021, 07:40:27 PM
I have a bit of a collection of the car's pictures and even some video of it. All from the last QLD champ where the car ruled outright.

https://www.drive2.ru/b/589969628113955502/
Title: Re: 147 Gta rally car
Post by: Cowie on June 17, 2021, 06:28:26 PM
Thank you Warsch !
A few of those pics I have not seen before. We have incar footage that my co-driver put up onthis facebook, but I haven't yet figured how to attach a link ( I'm not on Facebook).
I would have linked to pics myself but couldn't work it out.
All the feedback I've had suggests that everyone absolutely loves the sound of the Alfa V6 in the forest. It makes quite a racket  ☺️👌
Title: Re: 147 Gta rally car
Post by: Cowie on June 17, 2021, 06:35:31 PM
Also Warsch, since the first event in the car, I increased the front springs to 425 lb units, which gives an effective wheel rate of about 240 lbs.
Much much better .....
Title: Re: 147 Gta rally car
Post by: warsch on June 19, 2021, 08:59:22 AM
The sound is indeed great!

I've just got myself a nice 147 GTA. It will be my racecar, but sealed roads only, circuits to begin with and hopefully targas.

Though now I plan to turn my 2.0 156 into a dirt race car, some sprints to start off.