anyone using a Hyperflow topmount

[za - sti]

in the process of buying one of these but not sure how it works. The standard intercooler requires air to be forced through its fins via the scoop and the rubber seal under the scoop that fits into the recess on the intercooler. If you take away the rubber seal , the intercooler doesnt work.

The hyperflow appears to be completely flat with no recess for the rubber seal - what happens to the seal?

Any comments would be helpful

cheers

za

[JohnSt]

Buy a Front mount instead

[ANDYJDMSTI]

the rubber seal will still work, although you may have to extend it a little to one side as the new TM may well be wider than standard.

[wilky]

If its the big topmount hyperflow, similar to Higgys then its a good bit of kit if you dont want to go frontmount. Response time throttle to boost will not be lost in 6 foot of pipework.

I recall Andy F saying the difference when mapping a "decent" topmount to a front mount was about 1bhp. That was a few years ago so views may have changed.

Main difference being a front mount will allow a lower charge temp when constantly on the move, top mount will allow the charge temp to cool quicker from a standing start. the arguements for and against would take up volumes.

On the hyperflow what I have seen people do is remove the guts of your scoop and build up a wall of foam insulation material around the edge of the intercooler so that when you close the bonnet it squashes down and forms a seal around it and channels all the air onto the intercooler. This what higgy did and I know he was happy with the results until he bought a fmic.

The "face" of the hyperflow is also more robust as well, meaning that if you want to put ice on it to assist with cooling the charge for 1/4 mile stuff, there are no fins protruding to get bent.[]

Callum W