SES 2007 sprinter dyno printout

 

Darrel Ward

 

 

Darrel Ward on his new sprinter for 2007. Frame modified and forks raked. Engine is 237cc with rapido 225cc barrel with jap piston and porting done by SES and himself.

 

Darrels's Best Times This Year

 

Avon Park End of Year 13.9 AT 95 MPH

14.2sec's at 95mph all year no fail.
28bhp at 116mph at Scorpion open day September 2007.
2nd dyno at Shires sat 29th 2007 at 26.8bhp at 121mph.

 

Darrel's Engine

 

Rapido 225cc barrel topped and tailed, boost port in piston, 60mm af crank webs milled and packed by Dave Betts to up primary comp, Jap piston kit, SES piston top hats, higher comp road going head,tmx 38mm carb, NK exhaust, cam lam 6 plate exhaust and viatronic ignition.

 

Darrel's Dyno Printout

 

 

Dave Betts

 

 

Dave Betts on SES new sprinter for the end of 2007 for development tuning on Lambretta's. Running on a 237cc TSL iron conversion testing several piston mods for our TSL road going kits. After several modifications to port design and piston ports the kit is sarting to perform well and will be adapted to all SES 250cc TSL kits.

 

15.3 sec AT 87mph with new piston mods, figues will be higher once Darrel as recovered from is fall at Woodbridge.

 

First dyno run was in September on stickys dyno with a result of 26.9 bhp before new piston mods

.

 

2nd dyno run at Shires sat 29th Sept 2007 pacemaker box fitted 17/46 chain set up at ratio 4.99. Speed 107mph at 29bhp.nk exhaust fitted. First run with sprint exhaust as per first dyno on stickys was at 26bhp.

 

Dave's Dyno Printout

 

 

SES Monster Vega

 

Built in winter 2006 for the 2007 sprint meetings this modified Vega fitted with a TSL 240cc engine kit proved to be a little to much to handle. After rebuild and painting it was damaged outside the shop while one rider was testing. After a quick repair it was takern to Elvington for its first sprint run.
While waiting in the line it was noticed the rake of the forks was reduced. I myself (Dave Betts) riding it was a little worried when I sat on the line waiting for the lights to change.
Lights changed and off I went having a quick look to my right to see were Darrel was. I was not giving the engine the full throttle when I felt the scooter starting to tank slap. Being a scooter rider I was not used to this and thus I throttled off resulting in even more tank slapping. Looked down at front wheel and it was wobbling like mad, next think I'm in back of ambulance waking up.

 

One brokern shoulder blade and several days of work I put the scooter on hold and returned the engine to an old cutdown frame. This scooter may be returning later this year with fork modifications and the rake altered for sprinting.

 

Sprinting

 

Scooter Engine Services and Fahron
200cc Lambretta Sprinter
60mm Crank
5 Port System
S.R Barrel with JAP Piston
17.40 sec at 78 mph.