James Beaumont
New member
I have 2.5 turbo with a few mods but really would like to make an 3lt turbo engine, what parts would I need ?, is there an company or someone that would put together an engine for me?
James.
James.
wanting to make a 3lt turbo
- Thread starter James Beaumont
- Start date
Ahhhhh ..... a version of a 944 turbo which I would very much like to own!
Here are some links to help you out;
http://forums.tipec.net/viewtopic.php?f=25&t=8205
http://www.pistonheads.com/gassing/topic.asp?t=766383
http://www.hartech.org/
Oli.
Here are some links to help you out;
http://forums.tipec.net/viewtopic.php?f=25&t=8205
http://www.pistonheads.com/gassing/topic.asp?t=766383
http://www.hartech.org/
Oli.
Kongsodoken
Active member
Simon Peckham SPS engines[
]
cost is reasonable quality is first class
] cost is reasonable quality is first class
blade7
Well-known member
u63af said:
I've still got those parts plus a new set of Carrillo rods and a new lindsey turbo on the shelf. But when prices have doubled or trebled for excellent original 944 turbos it didn't seem to make sense to pull out a good 2.5 engine, and chuck another £8-10k into a 3.0 that would add little to the value of the car. £10k could put a nice TVR 400 Wedge in the garage too.
PSH
PCGB Member
Personally, I don't get the point of going 3ltr unless you're into racing/dragstrip events or trying to have the biggest hp figures. You can get a seriously powerful engine from the 2.5 without all of the hassle involved developing a 3ltr. Far more power than you'll ever be able to use on the road can be found in the 2.5ltr which even though it may have up to and beyond double the engine's original power output it will still feel like a 944's free revving engine. Lag from a bigger turbo can be greatly reduced with a decent EBC with good duty cycle set up. Also no matter how much power you have you'll always be limited in top speed (170+) by the final drive ratio, you can tweak this a little by increasing your max rpm but why bother, this speed is supercar territory and believe me with a well-sorted 2.5ltr Turbo you'll be getting there very quick, very quick indeed.
Enjoy a well sorted 2.5 and have fun, the chassis is still one of the best ever designed, IMHO Porsche have yet to better the 944's chassis .
Pete
Enjoy a well sorted 2.5 and have fun, the chassis is still one of the best ever designed, IMHO Porsche have yet to better the 944's chassis .
Pete
blade7
Well-known member
I don't think it's so much about power, more the better torque the extra capacity and longer stroke produces under 3k, and the bigger valves the larger bore allows. Some engine builders say the windage ports and siamesed cylinders of the 2.7/S2/968 blocks are beneficial too. If I had to rebuild my engine I'd certainly go 3.0 but only because I've already got the parts.
TTM
Well-known member
A 3L turbo engine will always be a lot nicer to drive than a 2.5 turbo engine regardless of the conditions.
I drove a 2.5 944 turbo running a full Vitesse Stage 3 kit the other day and although it was no slouch I could not believe how much slower than my 3L it was, how much more stressed it felt, and how much of a pain at slow speeds half a liter less can get.
I have always found the standard 2.5 turbo engine with the K26/8 turbo to be about as good and balanced as a 2.5 may ever get without going wild into seriously expensive head/camshaft work and fitting a well-breathing modern turbo. Even then 3L is the engine size that should have been fitted from new, as most 944s are I think just too heavy to be really any good with only 2.5L
I drove a 2.5 944 turbo running a full Vitesse Stage 3 kit the other day and although it was no slouch I could not believe how much slower than my 3L it was, how much more stressed it felt, and how much of a pain at slow speeds half a liter less can get.
I have always found the standard 2.5 turbo engine with the K26/8 turbo to be about as good and balanced as a 2.5 may ever get without going wild into seriously expensive head/camshaft work and fitting a well-breathing modern turbo. Even then 3L is the engine size that should have been fitted from new, as most 944s are I think just too heavy to be really any good with only 2.5L
Diver944
Active member
zcacogp said:
His was a true 'budget' build, just to prove it could be done. An S2 crankshaft into a 2.7 block and 8v head gives the correct 3.0L engine. This was then simply dropped into a standard Turbo, running standard 0.8bar boost with a standard wastegate, but the ECU was remapped by Wayne Schofield so the extra fuelling was correct for the bigger capacity. IIRC it made 300bhp and over 350lb-ft starting from a very low rev range with minimal lag. It was fast and effortless [8D] If the new owner didn't mess with it I am sure it would run for years as it was very understressed
Posts made and opinions expressed are those of the individual forum members
Use of the Forum is subject to the Terms and Conditions
