matching ports

[byron20]

fitting twin carbs to a nova gte engine and i am using an irmscher inlet manifold however the ports on the manifold are flat along the bottom and thus slightly bigger than the gte's head ports which are round.

how would i go about matching the ports and if i dont will i have any problems with fuel/air flow?

thanks

[dunova]

Tbh you'd be much better off using a proper inlet, and i have one for sale!! :lol: ?70 delivered to your door :D

[nathan.]

It can't be done. you need a gte manifold which has round ports. if you start cutting away the head to match it to the manifold, you'll cut into the water/oil ways.

[Aragorn]

u need to match the manifold to the head by adding metal to the ports

by the time youve done that (expensive!) u may as well have just baught the correct 1600 inlet and sold the 1300 inlet on

[byron20]

ppl have used the irmscher manifold before though that orange nova in total vaux used it on the 1600 gte

[Snowface]

he probably didn't bothet matching (or he spent a lot matching it) and had bad results. You loose so much power when u don't use the correct manifold.

[nathan.]

you'll never get them to match! :roll:

like snowface and aragon said it will just cost way to much to add metal to the manifold. and you just couldn't take that much from the head.

[byron20]

are the ports on the nova e16se different to the nova c16se?

[Aragorn]

no both have round ports

[NovaloadedAgain]

Me & Aragorn had a chat about the same thing not so long ago. My friend has a GSi & he is using the irmscher manifold off a 1300sr he got from the scrapyard. It has always ran ok.
Although Aragorn told me that there are other long term effects such as fuel leaking & could leak down onto the pistons, causing them to melt! or crack at the least!
I would say why would they manufacturer a 1600 manifold if you could use the 1300?
Id buy the proper manifold just incase mate.