65 replies to this topic

[HARBER07]

I'm all for it I think its a great idea, nice and different!

[pogie]

that is awsome!

what happened to the head in the end?

I sold it to a friend in our club who used to work for the guy who owned and raced the rallycross car that the head came from, he remembered me from 20 years ago which shows it's a small world. I showed the head to a few engine builders over the years and the general consensus was that the head worked brilliantly for their time (mid 80s) where maximum flow was all that was considered but a modern head would probably be as good at maximum valve opening but would also give better flow and drivability at small to medium valve openings.

There was also thought to be an issue with the head being porous between the water jacket and the new ports as the heads had not been heated correctly when welding in the steel ports, not a problem with a race engine where they are doing 20 minutes max running in a race but possibly a real problem on a road engine.

[Owen]

Pogie I stumbled across the pictures a while back but haven't been able to find out any more info on the head/mod. Unfortunately it's not mine.


Have you got any closer pictures of the manifold and the clearances between the rockers?

I know it's a lot to ask, but is there any chance you could send me all the pictures you have of the head/manifold?



I can't believe you owned this!

[pogie]

Pogie I stumbled across the pictures a while back but haven't been able to find out any more info on the head/mod. Unfortunately it's not mine.


Have you got any closer pictures of the manifold and the clearances between the rockers?

I know it's a lot to ask, but is there any chance you could send me all the pictures you have of the head/manifold?



I can't believe you owned this!

I might have some more photos hiddedn away somewhere, they were taken 20 years ago and I scanned the best ones. The space between the ports for rockers was one of the reasons for not using the head as there would have been clearance issues for roller rockers.

[trafficface09]

back on this topic again, i really like the fiat punto 16v head idea, i could pay somebody to mate it to a block for testing, does anyone know of sombody crazy enough to build me this engine? i cant very well ask an company to do it they will just think im being silly

[mini13]

robert on turbo minis might be worth asking,

he was doing a conversion but its shelved at the moment, money might affect that though.

[minimad01]

hmmmm this is interesting iv got a spare block 998 that needs a rebore as pistons are siezed in an iv got 2 spare heads i might have a go at the first thought later when i get back from pub also as i work on a scrap yard im gunna pinch a punto head an have a little play with my spare block
wonders outside into garage . . . .

[trafficface09]

minimad01 if you can get it to run i will litrally snap it up i will see what sort of cash i can get hold of

would you do an 8 valve or 16 valve? oh and it might be worth turbo or supercharging wonder if the Jcw mini supercharger will work?

that would be a seriously hybrid mini

[minimad01]

well im thinking iv got a spare block witch i can afford to screw up as its naffed anyway so thats a tester block ,iv also got a spare head that i can drill holes in (2 spares head but ill only do 1) an if i have a go at the punto head it will be a 16v an then have a turbo of a 1.6 punto gt think youd probly have to run megajolt aswell

[minimad01]

i have been thinking the one thing that really bugs me about the a series head is the carb being at the back, and getting a 8 port or xflow is not cheep at all.

i was wondering i am asuming the chambers extend to the front of the head, could you machine holes in the front, weld up some form of mating surface for a custom manifold and block up the holes at the rear. if so im going to try it with my spare 12g940,


look at this period x flow head for example





i am aware that that is a alloy casting but im sure the same principle applys face off the front, bolt on the mating surface plate. and block up the rear

can anyone tell me if this would have enough torque holding the head on with only 7 bolts ? surley it would leak

[mini13]

it has 9.

[Deathrow]

I see 9 bolts, 2 of which are accesible when you remove the flange thats bolted to the front of the head for the intake.

[Rosslin Racing]

going back to the cast iron head. today the glues that are made are indestructable, you might find a glue to do the work instead of welding.

[minimad01]

ye i see now on closer inspection

[trafficface09]

well im glad i have sparked somthing interesting, im really looking forward to minimad01s tests