v twin - anyone done one
jimmyjonga - 8/9/04 at 01:34 PM
hello there
choosing engine for my locost - going bike route but has anyone tried a v twin - is there just to much vibration???
any thoughts welcome
james
ned - 8/9/04 at 01:46 PM
the honda pan european (a v4 i believe) has been done. i gather the lack of power of a v-twin (despite the extra torque) and possibly the way it would
have to sit in an engine bay due to location of gearbox/sprocket may be why it isn't more widely adopted..
Ned.
Peteff - 8/9/04 at 02:38 PM
He sva'd it this year. It's a Honda SP1 I think in a Special from Stuart Taylor.
timf - 8/9/04 at 03:03 PM
quote:
Originally posted by Peteff
He sva'd it this year. It's a Honda SP1 I think in a Special from Stuart Taylor.
spunky is the name
Brooky - 8/9/04 at 04:40 PM
The mid engines sp1 is a midtec sp1der now owned by Stuart Taylor and indeed built by Spunky.
Stuart Taylor also fit them to the phoenix cars but not to the locost range as one of the pots would sick out the side apparently.
Hugh Jarce - 9/9/04 at 07:09 AM
Funny he chose the SP1. It's physically the largest and tallest by far of all the current Jap V-twins. A Suzuki TL1000 would have been more
compact, but the KTM V-twin is more powerful and really tiny. But probably too rare!
ceebmoj - 9/9/04 at 07:29 AM
im using a vrt1000, and as has been said it would stick out the side of a locost however if you are going for somthing mid engined you can get awar
with the extra hite. and youcan pick them up for a lot less than most other bike engins.
Blake
spunky - 9/9/04 at 07:52 AM
Hello chaps,
haven't built a seven so can't comment with any authority on engine fit. A twin does have to sit on the left of the engine bay in order to
line up the sprocket.
Vibration is not excessive and is only really noticeable in the mirrors.
Lack of power
I reckon 130 bhp is comparable to a blade and its the torque that gets the car moving.
What I like is the drivability of the twin. Pull away at 1500rpm, sit at 80mph at 6500rpm and no need for endless gear changes, the car will pull
smoothly from 40mph in top gear. If you want to stir the box the engine comes on cam at 9000rpm.
There's no great weight saving with a twin, and would agree with Hugh the TL1000 engine would be a good choice (used to have a TL) Be a long time
before the KTM's reach the breakers.
If it will fit it would be a great car, get your tape....
John