924Board.org

FASTdan · Joined: 30 Jan 2006 Posts: 81

this may be completely out of the question (or maybe its been done to death, i dunno! lol) but has anyone considered transplanting the 1.8T audi TT/golf GTI engine in to a 924? 225bhp out of the box and all the modern tricks and reliability?! And an easy 300bhp with a few mods!
Again, I may be talking fantasy but it is a popular conversion over here in the uk for mk1/2 golfs (VW rabbits to you guys maybe?) and seems to be a pretty universal engine - bearing in mind the 924's audi/VW engineering.

Any thoughts?
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1980 924LUX

morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

isnt the golf5 a transversal mounted engine ?....dunno...it would fit...but with mods to mounting...electrics and drive line.

a gti engine or a TT engine would cost as much as a 951 engine....i dont see why swap to VW or Audi when there are Porsche options.
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FASTdan · Joined: 30 Jan 2006 Posts: 81

225bhp out of the box (on baby boost) and about 20 years newer in design - but perhaps like you say the problems would outweigh the benefits? transverse mounting shouldnt matter i wouldn't think? main problem would be mating to the bell housing i suspect - as I have just realised the 924 engine is mounted at that wacky angle, something you couldnt do to the 1.8T engine unless you had special sump modifications etc.

Im not particularly clued up on the 931 engine - as to what power can be had for what cost. What boost do they run as standard? as 177bhp from a 2.0 turbo isnt mind blowing, bearing in mind a ford escort RS turbo runs 135bhp on the same bosch k-jet and 7psi boost on a wee 1600 lump (and was designed around the same time in history).
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1980 924LUX

morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

as far as i know its 0.6 bar for the 931...and the 2.0L Turbo GT-S makes @250 HP..now whats something...even today.
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moone924 · Joined: 05 Feb 2003 Posts: 868 Location: Douglas Wyoming

There's a engine swap forum at the bottom of the forum list....

I'm pretty sure this has been discussed before......
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Ryan Moone

Always shopping for a nice s2 931 to baby.
New philosophy : one car project at a time.

CBass · Joined: 03 Nov 2002 Posts: 2807 Location: Vancouver, Canada

Mounts are all wrong. You have to cut the whole mounting assembly out of the VW donor car, and weld in brackets to support the mounts.

The bellhousing pattern is different. You can modify the 924 bellhousing and clutch, which is probably the easiest way of doing it, or you can chop up a VW tranny to do it... Good luck with the latter. Modifying the 924 bellhousing involves extensive fabrication, machining and welding.

Wiring is completely different. CIS vs Motronic IIRC. It's all there though, nothing too complicated just tedious.

Other than that, simple and easy as swaps get

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'81 931 in various states of assembly

Mike924 · Joined: 12 Aug 2004 Posts: 2601 Location: IoW UK

Dan, forget your hot-hatch past - yuo've got a grown-up's car now!

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1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd

'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org

FASTdan · Joined: 30 Jan 2006 Posts: 81

morghen · Joined: 21 Jan 2005 Posts: 9095 Location: Romania

just put a tutbo on the old 2 liter...it will make 180 hp...as the 1.8 T does.
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Paul · Posted: Sat Mar 04, 2006 12:24 pm Post subject:

My wife's TT 1.8T makes 225 hp stock and can make almost 300 with a different chip and 93 octane (US Pumps).
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White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.