Group A cars

[markf8691]

Just checked on JUWRA (dunno how reliable it is though) says s rule change for the 1990 season was mandatory 40mm restrictors, so before this guess they had bigger restrictors....

[Mirek]

JUWRA is run by one of our members with a nickname Jonkka

[markf8691]

JUWRA is run by one of our members with a nickname Jonkka

Good to know! Useful wee site!

[janvanvurpa]

Just checked on JUWRA (dunno how reliable it is though) says s rule change for the 1990 season was mandatory 40mm restrictors, so before this guess they had bigger restrictors....

Odd cause right from Jan 87 there was a lotta talk about the 40mm rule and how this would affect 2 liter cars and how Mazda was trying to be clever with their little 1,6 and how 1,6 would not be bothered like 2,0 would be..

And Mazda was out of the picture by 1990..

I have some compressor housings off Group A Cossies but they are off Escort Cossies which cam a bit later...One is 40mm and one is 38mm and I have to be honest after 1990 I was busy with my shop and rallying --we had the 40mm rule and so didn't worry---until maybe 05 when we jumped directly down to 34mm.

Whatever the time line a) it didn't slow anybody down, and b) it sucked.

A "play to the galleries" however you say that en Anglais

[Rallyper]

"Spel för galleriet" en suedois.

[OldF]

Lasse Lampi once told that the Mitsu Galant VR4 had 393 hp with a 40 mm restrictor. He also said that the 40 mm restrictor didn’t affect the power so much because the Mitsu’s throttle body had a diameter of 41,2 mm.

A Lancia Delta Integrale with 385 hp.

http://www.mat.fi/cars-for-sale

1990 Lancia Delta Integrale Group A #458692
An original ex Martini team rally car driven by Miki Biasion on 1990 rallye Monte-Carlo.
The car has undergone a complete restoration to return on the original configuration by MAT.
The engine is 16V version and was recently tested on dyno to found out 385 Hp.

Other restrictor sizes:

1992: 38 mm
1994: 36 mm
1995: 34 mm

http://www.rallycars.com/Cars/turbo_restrictors.html

[AndyRAC]

Those were the days... In Italy there were lots of private tuners who prepared group A8 cars...

That was a strength of GpA; plenty of private tuners providing cars......

[itix]

Yea I think I remember reading on JUWRA that they introduced a smaller restrictor somewhere in early 90s to try and reinforce the 300bhp, however didn't know the cars had been over 400bhp.

So by the time WRC cars came along in 97 the group A cars had increased in power again?

Why did they limit it anyway, was it for safety reasons?

This prob won't be very popular but some of the group A cars looked nicer in my opinion than in group B. The lancia delta S4 looked ugly I thought especially at the back, didn't look right!

Agree so much with this... The only two good looking group B were Peugeot and the RS200. The sound I can understand, especially the AUDI but the look was just horrible (apart from above mentioned).

[Fast Eddie WRC]

People think the Group B cars were ugly & clumsy on tarmac, so why did their every rally have massive crowds... ?

At the time they were like mega-futuristic, uber-machines and the impression they left on people was huge. Everyone was in awe.

When Group A replaced them it was like going from seeing Concorde to watching a bi-plane !

https://www.youtube.com/watch?v=TtR5OOHZSp4

[markf8691]

Agree so much with this... The only two good looking group B were Peugeot and the RS200. The sound I can understand, especially the AUDI but the look was just horrible (apart from above mentioned).

Just looking through some pics of group b machines, the earlier ones were OK looking but I think towards the end when all the evolution specials came in that's when they stopped looking good (even though sounded good).

The Peugeot in 1984/85 looked good and yea the RS200 was cool looking, remember as a child having like a matchbox model of it and thinking it looked good!