200hp 1200DP Turbo 'Challenger motor'

[Wally]

Its a multirip Kalle, so no choice there.. and its a multirip because with V-groove there wasn;t a V-groove pulley for dry-sump (extra-extra small) with this trigger set-up. Not on short notice however. So, I agree with you of course, but it is what it is for now.
It did come with a large upper pulley though
And I use the smaller diameter fan to minimize power loss.

[Kalle]

Its a multirip Kalle, so no choice there.. and its a multirip because with V-groove there wasn;t a V-groove pulley for dry-sump (extra-extra small) with this trigger set-up. Not on short notice however. So, I agree with you of course, but it is what it is for now.
It did come with a large upper pulley though
And I use the smaller diameter fan to minimize power loss.

I hear you... I believe I have a couple of V groove pulleys laying around but they are packed away and it will be difficult to find them right now unfortunately. I like my fanbelt really loose and I have never lost a belt or ripped one. And of course.. the old school way is to remove every second blade on the fan.

-BB-

[buguy]

Interesting. I keep mine super tight because i hate that flopping around. I don't spin 8000 rpms either though. Yet!

[Wally]

And here is a short video of it in action:

http://youtu.be/BPdm51QwZEw

-K-

Jeezz! Never even knew there was an engine to hit 20K, Wow! The tone differences with each 1K RPM more is wicked.
Thanks for that, goosebumps!

Shortenend the fan housing 20mm per side today. With the aftermarket 30hp shrouds its easier and I think I get the hang of it as this is my second one

[MegaRookie]

Nice update Wally! In this speed I am sure you will be finished in time in 2 weeks!

And of course.. the old school way is to remove every second blade on the fan.

-BB-

@Kalle, never heard about that mod before! Is it to have less restriction in the air flow at high rpm?

[Kalle]

Nice update Wally! In this speed I am sure you will be finished in time in 2 weeks!

And of course.. the old school way is to remove every second blade on the fan.

-BB-

@Kalle, never heard about that mod before! Is it to have less restriction in the air flow at high rpm?

Less drag = more HP. This trick was, to my knowlegde, first used in rallycross.

-K-

[Wally]

I needed to shorten cooling shroud and header pipes 40mm in total!

[brewsy]

Come on then Wally.
Its been over a week now....

How did it go???

[Wally]

Dyno Day is actually coming saturday 5th September, so no results yet, sorry!
Tuning goes as planned though and its still in one piece

[MegaRookie]

Very nice looking and good to hear that it is still in 1 piece!

Good luck tomorrow and I look forward seeing some results!

Mark

[Kalle]

Keep us updated and remember that absolutely no one remembers a coward to keep that pedal to the metal

Good luck!

Best rgs
Kalle

[split1950]

Keep us updated and remember that absolutely no one remembers a coward to keep that pedal to the metal

Good luck!

Best rgs
Kalle

I second that - GO BIG OR GO HOME!!
I'm sure you will do the former.

[Wally]

The 410km drive to the site went well. It doesn’t want to rev particularly well, but we’ll see tomorrow. It feels like 50hp Max ...
Good turnout at our guest Privat house (tnx Markus) for tonight. Including the twin turbo 1200 from Lars and the compound turbo in the Fiat 850 (1641).
Will be a good day anyhow

[Kalle]

It feels like 50hp Max ...

Hmmmm.... where did I stash that nitrous bottle?

Good luck today.

-K-

[Wally]

Well, it still made 91hp! I was obviously very pleased with that!
When I know all results of the others, I post it up.
Some crazy Berliner made 250hp from a 1300cc!