Tomcat turbo ?
Turbo Mini Forums

Hi all just received a t25 with the internal dump valve on inlet housing would this be a tomcat turbo?, it has a .48 a/r cant tell what the exhaust side is. I havent got round to measuring it yet but its smaller... maybe .42? And has the standard crack around wastegate! Not to worried though as it is pretty small and doesnt run very far.P.s do u have to run the water pipes ?

no but i think there's a trick with the internal actuator/dump valve, to fill it up with washers instead of the spring.....I beleive this enables you to adjust the boost even more. i think?

"Cars are a lifetime of pain"

What's a tomcat turbo ?

Some Rover K-series turbos have a built in dump valve...as do small turbo Escort Cosworths.

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

Rover tomcat- i think it is the 220 turbo coupe 93/95 something like that

You don't have to run the water pipes plumbed in, but if the rest of your cooling system can cope, then it's beneficial for the Turbo.

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Cool cheers Phil well ive got a twin core minispares jobbie which seems to do the trick ata the mo. What do u reckon about the turbo ? fairly suitable? Any luck with your pillar drill yet?

Those turbos work pretty well as I recall. I believe Dan ran one and was running low 14's with a pretty heavy car.

would be .49 on exhaust housing for a tomcat t25

i ran one on my k. made 197hp and 170ft/lb at 1 bar. above that it was becoming less efficient. the great thing about these turbo's is an upgrade to a larger T25 or anything from the t/GT28 family are a bolt on upgrade. lots of choice out there.

turbo 16v k-series 11.9@118.9 :)

Denis O'Brien.

I think Ian runs one of these no? I think with a mirage setup you need to change the comp housing for one without the dump valve as it won't fit between the bulkhead and block.

Yeah i figured i might have to but not to much of a problem cheers Jay