Building a 3.0L Turbo motor.
#31
Race Car
It is based off my initial design in my signature. Shawn (refresh951) was the first to replicate it and did a great job writing it up as well as a DIY thread. There are a few more completed on here duke has a 16v 3.1, Dave w has a 2.85.
It's not your std 3.0 build. But it's the only way I'd go. In regards to a how to", it's pretty basic engine building other than the specialized pieces ie; crank girdle, oil pump etc.
#32
Rennlist Member
#33
#34
It is based off my initial design in my signature. Shawn (refresh951) was the first to replicate it and did a great job writing it up as well as a DIY thread. There are a few more completed on here duke has a 16v 3.1, Dave w has a 2.85.
It's not your std 3.0 build. But it's the only way I'd go. In regards to a how to", it's pretty basic engine building other than the specialized pieces ie; crank girdle, oil pump etc.
It's not your std 3.0 build. But it's the only way I'd go. In regards to a how to", it's pretty basic engine building other than the specialized pieces ie; crank girdle, oil pump etc.
only interesting thing we did was to "pin" the block. Cheap mans version of decking while still keeping the cooling. I should post a picture.
#35
Drifting
This is true but if they go missing what would insurance pay ?. I'm leaning towards nickel ceramic plated cylinders and pistons that don't need coating.
#36
Rennlist Member
As fejjj says, no such thing as a 2.7ltr turbo. I think you maybe getting a bit of mixed info. The 968RS turbo had a 3ltr 8v motor but it used the head off the 8v 2.7ltr motor which had bigger valves than the 2.5ltr head. I believe the Firehawk series you're thinking about had 16v n/a motors in them and was only raced in North America. There was also no model of 944 S Turbo Cup car. It was just the Turbo Cup which was the 1st series of Cup racers by the factory. Then moved onto 911 variants although there was a bit of a time when you had both the 964 and 944 Cups on the same racetrack. There are videos around that you can find. Often very entertaining. Lot of body roll in those cars back then but they were well driven.
#37
Rennlist Member
#41
Anyone know the best source for finding this kind of stuff? Are their books on Porsche's racing programs that talk about specs, when they were raced and the results? It's easy to find the results, not so easy for me to find a source that talks about what changes were made as teams developed the cars over time. I've heard, for example, that the German team dropped out of the cup program around 1990 and before the French team did, and that the French eventually developed a car that made 390hp, but not a lot of detail on how they did it; a "larger turbocharger" was implied, not a lot of detail.
#42
Rennlist Member
Can you post a link to this Ebay car you're referencing?
#43
Rennlist Member
Thanks Raj (and Tom). I hadn't paid enough attention to these cars. Always thought it was essentially the 3L block with the 2.7L head and this gave enough tq/hp for the purpose. Interesting that they reduced the port size? Absolutely must have been governed by a power to weight ratio class restriction and didn't want to embarrass the rear engine king of the day either I guess.
#44
Yes, should have done that to start with. It's at:
http://www.ebay.com/itm/Porsche-944-...-/301040717931
Regards,
http://www.ebay.com/itm/Porsche-944-...-/301040717931
Regards,
#45