Author Topic: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)  (Read 22493 times)

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Offline Bad Kid

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Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« on: December 23, 2009, 00:10:34 AM »
Right for those that have asked, the basic jist of switching to a Garrett is:

Manifold
Option 1- The first option is to buy a 200sx stainless tubular manifold. There are plenty of them on eBay for under
NURBURGRING CHALLENGE :-D

Offline Trigger

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #1 on: December 23, 2009, 00:18:44 AM »
Topic moved to relevent section. Yet another top guide Ben 8)

Offline Chip

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #2 on: December 23, 2009, 00:41:04 AM »
Ben, if you go onto VS there are some good pics of the peterg manifolds I had, and of sbd16v's garret setup on an engine stand that can be seen really clearly.

Would be worth adding in as examples
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Offline Bad Kid

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #3 on: December 23, 2009, 00:53:10 AM »
Ben, if you go onto VS there are some good pics of the peterg manifolds I had, and of sbd16v's garret setup on an engine stand that can be seen really clearly.

Would be worth adding in as examples

I'm not registered mate, if you post the image here though that would be cool :)
NURBURGRING CHALLENGE :-D

Offline Chip

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #4 on: December 23, 2009, 11:00:46 AM »
PeterG manifolds:











www.totalvauxhall.co.uk

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ɯoɔ˙ʇɹodsxnɐʌ˙ʍʍʍ

Offline Chip

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #5 on: December 23, 2009, 11:03:47 AM »
Nortech manifold on Rob's Astra engine




build thread is here if anyone wants a read:
http://www.vauxhall-sport-forum.com/phpBB2/astra-gte-turbo-t1054,start,60.html


That setup is good enough for 170mph inside a mile, and 150mph in half a mile :D
Approx 400bhp

VERY good spread of torque though, its pulling hard from 3K-7K
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Offline Martin.

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #6 on: December 23, 2009, 11:27:49 AM »
Thank you Black Arts Carbon & Chip, I've bookmarked page! will be somthing I'll be looking into in the new year when I have a bit more money!
So may bring up this thread again if in need of a bit of help from you guy's or anyone else!
Thanks.
Official Turbo register
http://www.clubcalibra.com/index.php?topic=34838.msg452964#msg452964


I have not failed. I've just found 10,000 ways that won't work.

Offline richiem

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #7 on: December 23, 2009, 13:31:16 PM »
Nice one chaps ;)
back again with le turbo n050. Loving it!!!

Offline Chip

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #8 on: December 23, 2009, 14:22:58 PM »
Its such a shame those peterg manifolds are no longer available, they were pieces of art rather than just amazing engineering.

Ive got the last one he ever made before his tragic death still sat in the garage at home, got no immediate use for it but dont want to let it go because I know it can never be replaced!
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Offline Bodgetastic

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #9 on: December 24, 2009, 02:04:33 AM »
Its such a shame those peterg manifolds are no longer available, they were pieces of art rather than just amazing engineering.

Except for being a pain to fit they are gorgeous manifolds, I really didn't enjoy wrapping mine in volcanic ash  ;D.   

Might be worth highlighting the difference between external/internal wastegates which will influence turbo choice / manifold design.     

I would personally try and avoid pertek where possible, I know many people use them and they have been extremely helpful to me when desperate and are cheap but they are ultimately industrial suppliers and in my experience use bulky fittings with pain the ass threads.

Also worth adding an inline filter for the oil supply, something like this....







Offline Bad Kid

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #10 on: December 24, 2009, 03:59:23 AM »
Pirtek can be as cheap or as expensive as you want ;) At the end of the day, as long as the oil lines don't leak, and have the right fittings on them, it doesn't really matter who makes them TBH. I went for Pirtek because I know they will be properly crimped up and have a burst pressure way beyond what the engine could produce.
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Offline Chip

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #11 on: December 24, 2009, 11:25:11 AM »
I agree on the pirtek fittings, some of it is a bit bulky, for me thats not a problem as my engine has a lot of space around it, but for some applications its awkward, so just a case of knowing when you can or cant use them.

Earl's filter is pretty much essential for a GT turbo, but of no real value on a T series generally.

I use one as im on a GT35R
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Offline tommygards

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #12 on: December 24, 2009, 20:25:14 PM »
thanks ever so much for the thread, its really good.  A couple of useful additions would be the difference between internal / external wastegate like Chip suggested, also what size thread / diameter hose is needed would be really useful.  Thanks again :D

Offline Ash,

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #13 on: December 25, 2009, 03:20:14 AM »
I'm stupid,

Whats the difference between internal and external waste gates?

Offline skorps1971

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Re: Upgrading a C20LET turbo (fao RichieM, Tommyguards + Martin P)
« Reply #14 on: December 25, 2009, 05:42:55 AM »
hi this mite be totaly silly but .....  you know the air thing that makes the air twist like a wirl wind.  and you putit in the air flow to make the air movefaster. could you make something to fit in the manofold.to make the air in there move faster to go in the turbo( would it make more power or an just an idiot and  now nothing about how turbos work ....
skorps