Sun Nov 20, 2022 4:31 pm

Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
 
Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
Sun Nov 20, 2022 4:31 pm linkquote
So close. Thanks for all the help here over the rebuilding of this box of parts.





Sun Nov 20, 2022 4:35 pm

Addicted
1968 VBB150
Joined: 04 Nov 2015
Posts: 641
Location: OC
 
Addicted
1968 VBB150
Joined: 04 Nov 2015
Posts: 641
Location: OC
Sun Nov 20, 2022 4:35 pm linkquote
TUCK.

Also, longer runway, easy 2.5mph.
Sun Nov 20, 2022 4:50 pm

Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
 
Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
Sun Nov 20, 2022 4:50 pm linkquote
That's not the top speed attempt, just after. I've got miles of flat straight lightly used roads at my disposal.
Sun Nov 20, 2022 4:57 pm

Hooked
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 227
Location: Cambria, CA
 
Hooked
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 227
Location: Cambria, CA
Sun Nov 20, 2022 4:57 pm linkquote
Awesome. You'll get there.

Nice looking scoot. 👍
Sun Nov 20, 2022 5:26 pm

Molto Verboso
Joined: 14 Oct 2016
Posts: 1308
Location: northern New York
 
Molto Verboso
Joined: 14 Oct 2016
Posts: 1308
Location: northern New York
Sun Nov 20, 2022 5:26 pm linkquote
It looked impressive though.
Sun Nov 20, 2022 5:45 pm

Addicted
1968 VBB150
Joined: 04 Nov 2015
Posts: 641
Location: OC
 
Addicted
1968 VBB150
Joined: 04 Nov 2015
Posts: 641
Location: OC
Sun Nov 20, 2022 5:45 pm linkquote
little more air pressure for less rolling resistance? Warmer day, colder day? Plug gap change?

You are soooooooo close.
Sun Nov 20, 2022 6:27 pm

Not So Moderator
VNB VSC o9c VMA vbc VSX
Joined: 28 May 2008
Posts: 6562
Location: Hustletown, TX
 
Not So Moderator
VNB VSC o9c VMA vbc VSX
Joined: 28 May 2008
Posts: 6562
Location: Hustletown, TX
Sun Nov 20, 2022 6:27 pm linkquote
Tuck.
Lean out the main 2 points for one ping (one run). *Sean Connery Voice* "One ping only".
Tail Wind.

Bobs your uncle.
Sun Nov 20, 2022 7:17 pm

Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
 
Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
Sun Nov 20, 2022 7:17 pm linkquote
60 degrees
Wind less than 3 mph
197' elevation

Pinasco 177 iron
Vape static a/c
18 degrees
Mazz cut crank
Fast flow tap
Road v1 exhaust
Case matched to modified 24/24 carb
AC 160
BE3
116 main
55-160 idle

25psi front
32psi rear
Sun Nov 20, 2022 7:44 pm

Ossessionato
79 P200E (Ruby), 62 Allstate (B-62), 2008 Stella (Olive)
Joined: 11 Jan 2006
Posts: 3284
Location: Florence, OR
 
Ossessionato
79 P200E (Ruby), 62 Allstate (B-62), 2008 Stella (Olive)
Joined: 11 Jan 2006
Posts: 3284
Location: Florence, OR
Sun Nov 20, 2022 7:44 pm linkquote
Grumpnut wrote:
60 degrees
Wind less than 3 mph
197' elevation

Pinasco 177 iron
Vape static a/c
18 degrees
Mazz cut crank
Fast flow tap
Road v1 exhaust
Case matched to modified 24/24 carb
AC 160
BE3
116 main
55-160 idle

25psi front
32psi rear
Are you running a CHT gauge? Reason I ask is I couldn't keep the temp below 300f at WOT with that setup. And I'm running the Pinasco 2-port 177 and vape AC, at 20 degrees, 57mm Mazz crank and Ffftap, road 1 also!

I ended up with 120AC/BE4/128 and 55/160. Flat carb slide. Temps stay under 300f at WOT, and 65 mph tucked on flat road, downhill a little faster.

60/8s is close for you. Just don't seize like I did because I wasn't running a temp gauge...
Sun Nov 20, 2022 8:09 pm

Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
 
Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
Sun Nov 20, 2022 8:09 pm linkquote
No temp gauge. Really don't want one. Have more brass coming this week to get it dialed in.
Mon Nov 21, 2022 6:33 pm

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 6790
Location: Nashville
 
Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 6790
Location: Nashville
Mon Nov 21, 2022 6:33 pm linkquote
You could bump the clutch from 21 to 22 teeth. That'd give you the extra 2 1/2 mph with no other tuning changes.

Otherwise, you're going to need to eke more to end RPM's out of your motor, which may require more changes than just jetting. Probably intake and port timing changes.

Or you could wait for a good tail wind for your next attempt.
Mon Nov 21, 2022 7:07 pm

parallelogramerist
Joined: 26 Oct 2015
Posts: 3953

 
parallelogramerist
Joined: 26 Oct 2015
Posts: 3953

Mon Nov 21, 2022 7:07 pm linkquote
Possibly wait for a cold morning where it's closer to the mid-30 degrees outside? It might give you 1 extra mph. Wearing a spandex body suit could give you another 1mph. Now we just need to figure out where to get that last .5mph! Perhaps skip Thanksgiving dinner this week?...no, that's not realistic. We gotta think of a different plan.
Tue Nov 22, 2022 2:53 am

Ossessionato
2007 Stella 225
Joined: 02 Nov 2019
Posts: 3119
Location: Rochester, Minnesota
 
Ossessionato
2007 Stella 225
Joined: 02 Nov 2019
Posts: 3119
Location: Rochester, Minnesota
Tue Nov 22, 2022 2:53 am linkquote
whodatschrome wrote:
Possibly wait for a cold morning where it's closer to the mid-30 degrees outside? It might give you 1 extra mph. Wearing a spandex body suit could give you another 1mph. Now we just need to figure out where to get that last .5mph! Perhaps skip Thanksgiving dinner this week?...no, that's not realistic. We gotta think of a different plan.
Draft behind someone in a van?
Tue Nov 22, 2022 3:52 am

Ossessionato
2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
Joined: 26 May 2013
Posts: 4420
Location: That bushfire place
 
Ossessionato
2 matching N.Z. '69 VBC Super, 177cc Racer, VespaCross Bodge, Puch SRA150, Piaggio Zip 100! & others
Joined: 26 May 2013
Posts: 4420
Location: That bushfire place
Tue Nov 22, 2022 3:52 am linkquote
Christopher_55934 wrote:
Draft behind someone in a van?
I once (ONCE that is) drafted a B-Double Truck down the highway for many many kms, on a PX200, it was going 110km/h+ (70mph)... found that you need to keep within about 5m of it, else you get buffeted and near-on blown off scooter... it sure was fuel economical, & I would pop out every now & then, so driver could see me in his mirrors.
Just hoped he didn't drive over a Roadkill Kangaroo! Scary as all whqt not! Would NEVER recommend it, nor do it EVER again!

Ohh, amd I had the keys for the backup van in my pocket!, so they were all stuck waiting for me to somehow get back to them, oops.
Tue Nov 22, 2022 8:54 am

Hooked
various, but less than I used to have
Joined: 20 Aug 2012
Posts: 148
Location: San Anselmo
 
Hooked
various, but less than I used to have
Joined: 20 Aug 2012
Posts: 148
Location: San Anselmo
Tue Nov 22, 2022 8:54 am linkquote
Doesn't look half bad at speed. Nice job!
Wed Nov 23, 2022 8:58 am

Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
 
Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
Wed Nov 23, 2022 8:58 am linkquote
Thanks all.
Qascooter I'll replicate your jet stack and give it a go.
Stay tuned
Wed Nov 23, 2022 1:53 pm

Addicted
1964 Allstate Cruisaire, 1966 Allstate Blue Badge Small Frame, 2022 Husqvarna Vitpilen 401
Joined: 15 Aug 2021
Posts: 670
Location: York, PA (the intellectual center of the universe)
 
Addicted
1964 Allstate Cruisaire, 1966 Allstate Blue Badge Small Frame, 2022 Husqvarna Vitpilen 401
Joined: 15 Aug 2021
Posts: 670
Location: York, PA (the intellectual center of the universe)
Wed Nov 23, 2022 1:53 pm linkquote
Which tracking app are you using?
Wed Nov 23, 2022 1:58 pm

Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
 
Hooked
'58 VBA '79CT90
Joined: 25 Dec 2019
Posts: 173
Location: Chico CA
Wed Nov 23, 2022 2:08 pm

parallelogramerist
Joined: 26 Oct 2015
Posts: 3953

 
parallelogramerist
Joined: 26 Oct 2015
Posts: 3953

Wed Nov 23, 2022 2:08 pm linkquote
SubEtherBASS wrote:
I once (ONCE that is) drafted a B-Double Truck down the highway for many many kms, on a PX200, it was going 110km/h+ (70mph)... found that you need to keep within about 5m of it, else you get buffeted and near-on blown off scooter... it sure was fuel economical, & I would pop out every now & then, so driver could see me in his mirrors.
Just hoped he didn't drive over a Roadkill Kangaroo! Scary as all whqt not! Would NEVER recommend it, nor do it EVER again!

Ohh, amd I had the keys for the backup van in my pocket!, so they were all stuck waiting for me to somehow get back to them, oops.
I did that once many years ago. Yes, it was scary! I was riding back home on Sunday after dark from a rally in Seattle, back home to Oregon. I tucked in right behind a semi hauling liquid nitrogen. Cruising Southbound on i-5 I stayed about 10' off his tail...keeping it at about 62mph for the next 90+ miles. I was sitting bolt upright with a vacuum draft that was sucking me closer. I also got 90 mpg the whole time! My guardian angel must have been working overtime to keep me alive that night. I'd prefer not to attempt that stunt again.
Wed Nov 23, 2022 2:44 pm

Addicted
2012 Genuine Stella 150 4T "Penultimate"
Joined: 15 Jan 2019
Posts: 932
Location: Texas
 
Addicted
2012 Genuine Stella 150 4T "Penultimate"
Joined: 15 Jan 2019
Posts: 932
Location: Texas
Wed Nov 23, 2022 2:44 pm linkquote
You could always Rollie Free it...



Fri Nov 25, 2022 3:02 pm

Molto Verboso
LXS 150
Joined: 13 Aug 2009
Posts: 1158
Location: The OTHER South Bay, CA
 
Molto Verboso
LXS 150
Joined: 13 Aug 2009
Posts: 1158
Location: The OTHER South Bay, CA
Fri Nov 25, 2022 3:02 pm linkquote
Or Craig Vetter it by adding a tail cone of sorts to the seat behind the rider.

My 150S ('09, LXS) gains 3-5MPH (60MPH -> 65MPH) out of having a flyscreen, tailbag, and a bag on the seat behind the rider to close up the gap between my backside and the tailbag. The idea is to divert airflow around the rider's arms (flyscreen) and extend/disperse the pocket of low-pressure air behind the rider, to reduce drag.

My earlier version had the tailbag on the seat (on a small wedge-shaped platform, since the S seat slopes aft behind the rider's position), and was similarly effective.
Fri Nov 25, 2022 4:51 pm

Banned
2:6
Joined: 11 Jan 2007
Posts: 8347
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 8347
Location: San Francisco
Fri Nov 25, 2022 4:51 pm linkquote
Honestly that run was so close with zero tuck that just tucking in would likely get you there.

Full tuck is my nitrous.
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