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Is this Turbo going to be to BIG
Camo - September 21st, 2013 at 03:02 PM

Hi all,

went to a engine tuning place today out at Ingleburn to inquire about Haltech ECU and he thinks this turbo is to big for my EFI Turbo conversion. Can any of you experienced VW turbo guru's let me know your thoughts please.

Can you tell me If the motor were a 2180, but also a 1916 how it would be. Unknown compression ratio at this stage as still in car and naturally aspirated. Will do compression ration check when engine out.

Cheers, Kev

gordysbeetle - September 21st, 2013 at 03:10 PM

I run one that size on my pushbike. :)

Camo - September 21st, 2013 at 03:58 PM

Quote:
Originally posted by gordysbeetle
I run one that size on my pushbike. :)


Yeah, but that one didn't need wiring. Hence, that's why it goes :lol::lol::lol::lol::lol::lol::lol:

Gotcha, Kev

HappyDaze - September 21st, 2013 at 04:05 PM

It's his baked-bean-fueled exhaust that makes it go, Kev.

psimitar - September 21st, 2013 at 05:03 PM

so it's a T3/T4 hybrid? If so is it T3 exhaust and T4 compressor or the other way round. Normally T3 exhaust and T4 compressor.

Anyhow, the Ford Sierra Cosworth used a T3 and the RS500 version used a T4. Both had the 2l Pinto bottom end with a twin cam 16valve head. Std Cossie still was a bit sluggish below 2.5-3k rpm but the RS500 needed dropping a few cogs to get it sucking above 4k rpm.

Hopefully that'll give you some idea. Altho the 8valve VW motor should have better torque and exhaust gas speed in the lower rev range so should spool up quicker and be more responsive.

68AutoBug - September 21st, 2013 at 05:03 PM

You aren't going to scratch any paint in the engine bay Kev??

I thought Your car was finished?

Lee

Camo - September 21st, 2013 at 10:22 PM

Lee,

when are these cars ever finished.

psimitar, thanks for putting it that way. Also if I leave higher compression it will be ok down low and then great when boost comes on (but not to much boost).

To the others, this was meant to be a serious post :lol::lol::lol::lol::lol::lol::lol:

Quote:
Originally posted by HappyDaze
It's his baked-bean-fueled exhaust that makes it go, Kev.


Greg, did you mean like this type of power

psimitar - September 22nd, 2013 at 01:12 PM

You have to be careful with the compression ratio tho. If the comp is high then boost must be low yet if comp is low then boost can be high.

For that size turbo 7.5-8 would be the go otherwise the blow off valve and actuator gate will be working their tits off.

Also if you make a twin scroll manifold then it'll make it spool up quicker and be more responsive :)

bajachris88 - September 22nd, 2013 at 03:10 PM

Someone put a thread up about dynamic compression ratio recently,

that'll be the thing to study lol, just to put a spanner in teh works :tu: :lol: