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Yeah, gonna open it anyways, replace whatever needs replacing. Yeah, Rampe's old engine, he said it's in race spec apart from the pistons which he claimed would be good for up to 300 or so hp - but he didn't remember a lot about the exact spec. And no worries about the plug, I have a guy who's worked a lot with these engines helping me and he's gonna make a new adapter thingy for different plumbing to feed the turbo. And in addition to that, I'm gonna feed the head from the side gallery. Proboost say the Bandit kit is bolt-on for EFE and Katana too.

I tried to read all I could find, but holy crap there's so many options and me with no engineering degree am just getting more and more confused. So I decided to take the easy route and get a kit from Proboost. The bigger one. Gonna take oil feed to the turbo straight from the pump. Maybe that's good enough for a journal turbo. Arttu, no idea about CR as I haven't had the engine open yet, and the original builder didn't remember it either. I suppose it might be even lower than that taken that the combustion chambers are opened up. It's an old Any10 race engine, so I suppose they've had an idea what they're doing when building it.

Yeah crank's welded. As I said the engine's been used in a drag racing bike, it's fully prepped for power levels above those I aim to reach. And I've heard from several sources (including the original builder) that standard EFE pistons are good. Oil pump's got GS750 gears already.

Hi guys. There's just too much for me to choose from, so I thought I'd ask for your opinions. I have a Kat with EFE engine that's prepared for forced induction - in fact has been used in drag racing. This year I was running it naturally aspirated, but thought about fixing that. Internals are standard EFE with reinforced gearbox. The head's been heavily ported, the combustion chambers reworked and the story goes it's got slightly hotter cams too. Ignition is Dyna S and it's running on standard carbs, both of which I intend to keep. The goal is 200+ hp and enough reliability that the bike's actually usable. The thing is there's an infinite number of turbos, and everybody seems to have their own opinion. For instance I thought about using a TD04, but then I was told "using a turbo that small you'll just melt the head" and "with that low oil pressure you'll need a ball bearing turbo". So what do you guys think?

Everything's new. I'll just wait for the DPD man to get here.

I ordered a 10 row 13" cooler already. It fits nicely under the plastic.

Okay, thought GSXR was the 1st with oil cooler. eBay-ward ho!

No oil cooler yet! Was stupid enough to buy one with AN10 size and the I can't get the hoses to fit sensibly. But after all, aren't these engines supposed to work without a cooler anyway? And yea, I flushed the engine with mineral, and changed to ester based. Slowed down the heating quite a bit, but didn't solve the problem.

I don't think so. Both the sensor and the gauge are new and it behaves in a logical way. The temp just won't stop rising.

I notice my EFE engine is getting really friggin hot while riding. Oil temp goes up to 120, and that's on the open road. Seems hot to me, but is it? Haven't had the bike tuned (yet) but to me it doesn't seem to be running that lean. Is there something else to check?