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Inlet Runners for a 3.0L conversion
Posted: Tue Dec 21, 2004 10:56 pm
by David
I'll post the steps I used in building the new inlet runners. It may be useful to others wanting to do the same thing, particularly if you only have home workshop tools and can do a bit of basic welding.
David
Posted: Tue Dec 21, 2004 11:05 pm
by David
More
Posted: Tue Dec 21, 2004 11:13 pm
by David
More
David
Posted: Wed Dec 22, 2004 4:07 am
by SamW
That is beautiful! How much is that going to cost someone if you end up with nothing better to do than supply other people with that?
Posted: Wed Dec 22, 2004 4:29 am
by Steve R
Cool, looks pretty straighforward !
Did you also enlarge the 6 Plenum outlets ? & how ?
Posted: Wed Dec 22, 2004 5:00 am
by David
Sam,
If I had a choice that's all I'd do is work on GTV6's, but the bills have to be paid.
When I win Lotto, that's what I'll do. HaHa
David
Posted: Wed Dec 22, 2004 5:12 am
by David
Steve,
The best you can get from the 2.5 plenum is 39-40mm, which I still think is enough for a stock 3.0L. The "flange" inside the original 3.0L runners is actually close to the ID of the 2.5 reamed out runners.
I used a good quality USA straight edge "reamer", not sure what they're called but they rip out the alloy quickly. I also used this to ream out the inlet flanges. The attached photo shows the 2.5 plenum and the tool.
David
Posted: Wed Dec 22, 2004 5:30 am
by Barry
David,good stuff mate! You might want to contact Patrick Centurion in Sydney.He might be keen on a set from you.He`s fitting a 166 motor into his gtv..Will mail you his contact.
Barry
Posted: Wed Dec 22, 2004 6:03 am
by Seb
Great stuff David!
So the 2.5 plenum has a limit of about 41mm id? Will it limit the flow a lot if mounting 45mm id runners and only using a 41mm plenum opening?
On my 164 3.0QV plenum I´m using the runners are 45mm id and openings in the plenum to match. Should be prutty good then huh?
Posted: Wed Dec 22, 2004 8:25 am
by Zamani
Fantastic Job!!!
Posted: Fri Jan 07, 2005 9:13 am
by Andrew.b
Nice job mate.....well done!