More for fun, looks, I've build this turbo engine for a friend of mine
More for fun, looks, I've build this turbo engine for a friend of mine
Last edited by Dyno; 23-11-2021 at 21:10.
What a nice and tidy build Dirk!! Glad you finally finished it, your mate should be happy with the looks and the way it goes.
Do you test in top gear or 3rd gear? What cam did you end up using for this engine?
My Cologne was booked for a mapping session on the rollers last week but the starter motor decided to have a coronary. So had to cancel as no parts available till Xmas, maybe.
It was tested in third gear but the difference is really marginal small compared to direct drive like 4th. If I use direct the dyno's minimum lead is rather high. It's not like when you are on a rolling road that "lost" are 10 - 15 Bhp high. It is more like 1 or 2.
Camshaft is standard and not much sense to replacing it. Engine is running 500 mbar at +/- 3000 RPM (boost comes up once 2500 RPM is passed). Final boost round 5500 RPM is 400 mbar (drop's off a little). I could have added some extra boost but we where not after full power. More looks and very reliable. The car will be driven to South of France more as once. So fuel consumption and being reliable was very important.
Wanted to test is also with intercooler but we where missing a metal gasket where the original exhaust collector was connected to the cross over tube. I had to machine an aluminium ring but at the very end it failed.
nice neat installat low boost i imagine the blow through carb is all it needs.
For those not aware a blow through carbs give a charge cooling effect by the way it evaporates the fuel, which you dont get with fuel injection
Correct, and the reason why I always measure more power for the same boost with a carburetor setup as with fuel injection but I better did not wrote this, the next 3 weeks I'll get all kind of bagger over me, why fuel injection makes more power as carburetors !!Originally Posted by Graham
nice neat install
For those not aware a blow through carbs give a charge cooling effect by the way it evaporates the fuel, which you dont get with fuel injection
And how stupid I am, not been able to tune fuel injection correct. Thanks in advance
Nice and clean setup!
How are the exhaust from the far bank of cylinders routed?
On the none turbo side, the standard collector is fitted, tube go under the gearbox (just after the bell housing) up to the other side.
It follows the route of the standard exhaust pipes, but comes back up when after the bell housing
Last edited by Dyno; 24-11-2021 at 13:49.
From the internet:
This May turbo engine still looks as impressive as it did 35 years ago when I was driving my Capri. Sadly, I could not afford myself an engine like this when I was 18. And still can't
Happy I was asked to build one
PS: exhaust routes about the same way as in this picture
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