h and l model engines

Post by **toykaboy** » Wed Oct 12, 2005 5:18 pm

mornin all, i dont know it this has alreday been asked, but are these engines interchangeable? can i bolt a l model engine into my h2 with out changeing any electrics or anything?

cheers rob

Post by **sloweracing** » Wed Oct 12, 2005 5:50 pm

Yes the engines are interchange able and wiring is the same

But the L sp is different in the wiring loom to the normal h (only s.p version)

If it is a straight swop L engine into a H chassis it will work okay

Good luck

Post by **toykaboy** » Wed Oct 12, 2005 5:54 pm

are the carbs the same too?

Harvey Wishbone · Post by **Harvey Wishbone** » Wed Oct 12, 2005 6:38 pm

sloweracing wrote:Yes the engines are interchange able and wiring is the same

But the L sp is different in the wiring loom to the normal h (only s.p version)

If it is a straight swop L engine into a H chassis it will work okay

Good luck

ARRRRGH! Whats the difference to the noon SP loom????
I've just transplanted a standard motor into my H"2 SP chassis! Will the ordinary motor need the ordinary loom?
Not got it wired up yet, so asking this silly question!

Post by **sloweracing** » Wed Oct 12, 2005 6:49 pm

Yes the carbs are the same
We cant run flatsides carbs so i know nothing about them at all sorry

There are a few things that are different but i dont know what chassis you have or what engines you are changing over so at a guess

L sp has a different E.C.U than standard and ignition advancer as well so a standard engine wont run in a L sp electrics

Frame okay etc on all models H + L all the same just electrics and advancers are different

Hope that makes sense

http://www.sloweracing.co.uk

Post by **toykaboy** » Wed Oct 12, 2005 6:54 pm

well im thinking of putting a l model engine in my h2 frame neither are sp's or have been changed that i know of?

cheers rob

Harvey Wishbone · Post by **Harvey Wishbone** » Wed Oct 12, 2005 6:54 pm

I'm running CV carbs and I have a standard ignitor too, so it sounds like I might not have too mnay probs afterall! Looking at the lefthand casing it has a bolt for the expansion tank ala the L models, so i'm presuming it's out of an L model bike. It's kinda complicated, because I bought an H1 bitsa unfinished project as a donor bike!
I'm just geting it up and running so I can give it a shakedown run at a trackday at Silverstone at the end of this month.

Harvey Wishbone · Post by **Harvey Wishbone** » Wed Oct 12, 2005 7:01 pm

toykaboy wrote:well im thinking of putting a l model engine in my h2 frame neither are sp's or have been changed that i know of?

cheers rob

Sorry to highjack your thread Rob! I should have mine running tomorrow, if I find any proble,s I'll let you know.
An L model motor went straight into my H2 frame, so I can't se it causing you any problems, juts hook it all up as per the original motor and it all should be good.

Jamie

Post by **sloweracing** » Wed Oct 12, 2005 7:06 pm

I run 3 engines in my H2 frame
one is a H sp engine
L model not sp
H1 model not sp

We now have run a H sp for a year and half racing with no problems
so there good little engines

I also have changed the wiring loom over to a race loom on the H and put a L model loom in its place and now i can run a L model ecu which allows it to rev more than the H model

Gets a bit too much some times

L model wets H model drys
L model wiring Loom with L model ecu uk
Hsp engine in a H2 frame
L model swing arm
L model fairing (race)
the list goes on

Post by **toykaboy** » Fri Oct 14, 2005 5:35 pm

nice now, that has put my mind at peace, mean while ill put my duffed engine back together so its not lyin there in pieces and see if i can get my hands on a good l model engine.

cheers all!

Guest · Post by **Guest** » Tue Oct 25, 2005 8:14 pm

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Post by **toykaboy** » Wed Oct 26, 2005 5:00 pm

sorry mate im going to keep this engine and fix/tune it as ans when my banck balance allows!