turbo selection
Turbo Mini Forums

i'm building my engine now.
so got too many choices of turbo
1.t3/t4
2.GT25(ar 48)
3.gt17

i want to build this engine for drag,weekend ride.
running low comp.
which one is better?

also,for the adjuxtable boost controller,can a carb engine use it?

thanks for answering this stupid question as here in Malaysia,didnt have any turbo master.

http://www.minimonstermotorsport.blogspot.com/
http://www.retrosyndicate.freeforums.org/index.php

You are missing a bit of information on here such as engine size, spec etc.

But judging from your previous posts you are going to use a modded 998.

Going on this assumption my choice would be a GT1752.

If something is worth doing, it's worth doing half of.

oh.sorry.
thanks for reminding me.
yes.its for 998 cc.
it will run with a 12G295 head.

1 more to ask.
the exhaust valve for turbo is sodium filled right?
can i used the standard 12g295 exhaust valve?
or there is any replacement valve that can be used?

http://www.minimonstermotorsport.blogspot.com/
http://www.retrosyndicate.freeforums.org/index.php

Have you seen this thread??

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=329806

1 more to ask.
the exhaust valve for turbo is sodium filled right?
can i used the standard 12g295 exhaust valve?
or there is any replacement valve that can be used?

http://www.minimonstermotorsport.blogspot.com/
http://www.retrosyndicate.freeforums.org/index.php

Haha

Use standard valves, but relieve the exhaust guide a few thou to stop it binding. dont ask me what size to reem the guide I don't know, Benross does it for me.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

Hahaha!

On 11th Dec, 2009 sturgeo said:

On 11th Dec, 2009 wil_h said:
Benross does it for me.

sig time

If something is worth doing, it's worth doing half of.

Do NOT use standard A series valves on a turboed engine. In addition to this, the standard exh. valve on a 295 is on the small side. Get a bigger one, and have the seats ground properly, and the exhaust throat enlarged.

Phil Hepworth does a 27mm exh. valve which is great. The other alternative is this:

http://www.minispares.com/Product.aspx?ty=...367&title=VALVE EXHAUST 1.040

Edited by Vegard on 11th Dec, 2009.

hahaha

It may be worth me asking steve what I have in mine then. they're not the original valves, but they are nothing special. Had no problems and car makes the power expected.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

I'm running the C-AEG587 and C-AEG588 stainless valves in my 12G295 on the 998 turbo.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."