57 replies to this topic

[jaydee]

ive just got the same head and seems to be pretty similar to this one,
dont think it skimmed,
dont have any calipers so i roughly measured it with a tape :L
will have to get my hands on a set of calipers from my old school, im sure they wont mind haha






what do you think?
needs a good clean..
and is ther another way of increasing cr without messing with the head??

That hasnt been skimmed, and in your case you need to skim both face anyway..
so do the proper calculation and aim for a CR beetween 9,75:1 and 10:1.

The MG metro cam shouldnt be lumpy, but it really depends on how good the engine has been set up in terms of advance and air/fuel ratio.

[charliedurrant]

Jaydee,

I guess yours ended up okay? If I was betting, I would say mine had been dropped / left on the stud as the thread only seems to have worn on the top half.

Charlie

I replaced the studs, the one which replaced the wobbly stud didnt like to tighten up fully.
To be honest thats the only thing which didnt cause any real trouble lol, i had problems with the bypass and the cylinder head being skimmed to much for fitting aftermarket rollers (needs shimming).

I bought the 'A Series Builder DVD' by Bob Sollis and he had the same problem with having to shim the rockers so they sat correctly on the push rods.

Charlie

[coopdog]

ive just got the same head and seems to be pretty similar to this one,
dont think it skimmed,
dont have any calipers so i roughly measured it with a tape :L
will have to get my hands on a set of calipers from my old school, im sure they wont mind haha






what do you think?
needs a good clean..
and is ther another way of increasing cr without messing with the head??

That hasnt been skimmed, and in your case you need to skim both face anyway..
so do the proper calculation and aim for a CR beetween 9,75:1 and 10:1.

The MG metro cam shouldnt be lumpy, but it really depends on how good the engine has been set up in terms of advance and air/fuel ratio.

ok thanks for your help,
one more question, when ythy skim it how much do they take off? like mm or thous?? i know it depends o how much yo want off :L

[andymini12]

It will be in thou's of an inch, and you tell them how much you want it skimmed by.

[Spitz]

I had .080" taken of both my 295 heads.

[minimanjay]

Just a quick question that may help me and coop water pimp pully chnge is that needed and carb needle I have a aav I think it is or a aau should I need a AAA ? When I chane my head to 295 aswel ?

[coopdog]

and what is the best carb??
hiff38?

[minimanjay]

Coop from what ive heard jus modify your hs4 inch and half. Thinn the butterfly shaft slight work in the leading and exit edge of piston and run ram pipe and a sock

[Spitz]

I am using a HIF38 (HIF4).....but an HS4 would do as well. A HIF44 (HIF6) would be too much

I did have twin HS2's fitted. These did perform better in the slalom racing I was doing at the time ( better low down pulling )

[coopdog]

Coop from what ive heard jus modify your hs4 inch and half. Thinn the butterfly shaft slight work in the leading and exit edge of piston and run ram pipe and a sock

ok will do

[minimanjay]

Spitz I've heard of people running 28/36 twin chokes aswell are thy any good and would they fit under a standard bonnet ?

[Spitz]

No experience with them....sorry

[twrminisport]

Twin HS2's are awesome
Failing that do the aforementioned modifications as detailed in Vizard on whatever you have, HS4 or HIF38 and you will be fine

Jesus