Day/Night Temp Fluctuation: Tuner Trivia

Does your Spree/Elite already run great, and you're trying to make it quicker/faster? Need a monster motor swap? Discuss your ideas here.

Moderator: Moderator

maddog
CB900F
CB900F
Posts: 2228
Joined: Mon Jul 23, 1973 10:24 am

Re: Day/Night Temp Fluctuation: Tuner Trivia

Post by maddog »

12mm x 78cc = mega heat, you have several 2 jet carb options but its to late to talk about it now=3am my time.
some people dream of speed, i own your dreams!
User avatar
Wheelman-111
Moderator
Moderator
Posts: 11319
Joined: Wed Oct 22, 2008 5:09 pm
Location: Deepinnaharta, Texas

Re: Day/Night Temp Fluctuation: Tuner Trivia

Post by Wheelman-111 »

Greetings:

An elegantly concise formula. By your 12mm, do you mean the carb venturi diameter is too small? If so it's a 14. We've covered that old saw in another Perf. Tech. thread. Folklore and mysticism, sez I.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
mousewheels
Veteran OG
Veteran OG
Posts: 3639
Joined: Tue May 22, 2007 8:10 pm
Location: North of Seattle, WA

Re: Day/Night Temp Fluctuation: Tuner Trivia

Post by mousewheels »

peak temps of 450 would be on a J probe if in fact I've got a Type E? Gauge scale is 0 at 100F.
Around 370. I'd guess VDO has the 0 pt at 100F calibrated into the meter.
User avatar
Wheelman-111
Moderator
Moderator
Posts: 11319
Joined: Wed Oct 22, 2008 5:09 pm
Location: Deepinnaharta, Texas

Type E Type J Thermocouple Theory

Post by Wheelman-111 »

Greetings:

I will test Mr. Mouse's learned theories tomorrow night.

370 seemed to be the static temp with 30 seconds' WOT this night. Unknown type thermocouple will be swapped for the TRW type J which tested the same as the original VDO probe last week. I'll tuck it under a head bolt.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Post Reply