| Author |
Message |
txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
|
 Posted: Fri Mar 12, 2021 4:49 am Post subject: Re: ACN super squishies |
 |
|
| What heads, Chamber size, and deck height? |
|
| Back to top |
|
 |
jason
Samba Member
Joined: August 07, 2002
Posts: 3444
Location: Garage
|
| Posted: Fri Mar 12, 2021 8:29 pm Post subject: Re: ACN super squishies |
|
|
| L7’s, deck is .055, 56-57cc off the top of my head. I bought the heads when I bought the pistons. Figured the heads were a bit different for the pistons. Wish I would have gone with some tims heads instead. I have a set of stage 2’s in my bus, they scream. |
|
| Back to top |
|
|
Chip 
Samba Member
Joined: July 19, 2008
Posts: 969
Location: Utah
|
| Posted: Fri Mar 12, 2021 8:51 pm Post subject: Re: ACN super squishies |
|
|
| jason wrote: |
| L7’s, deck is .055, 56-57cc off the top of my head. I bought the heads when I bought the pistons. Figured the heads were a bit different for the pistons. Wish I would have gone with some tims heads instead. I have a set of stage 2’s in my bus, they scream. |
I ran L7s with mine for a few years. No complaints. Had to open the chambers just a hair to clear the domes. Mine had 65cc chambers if I remember right. My deck was .04, but only 9.4:1. |
|
| Back to top |
|
|
txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
|
| Posted: Tue Jun 08, 2021 10:50 am Post subject: Re: ACN super squishies |
|
|
Nothing crazy for my SS engine. Granted I wasn't looking for 12+ CR either. I settled for right at 10:1
Cam is ground on a 108 degree lobe center, ran straight up, .394" at cam and .510" at valves.
Tightest intake valve to piston clearance was 10 degrees ATDC on the intake stroke, and I still had over .090" clearance.
Exhaust valve had so much clearance I stopped measuring at .200"
Cam Card
|
|
| Back to top |
|
|
maui
Samba Member
Joined: May 16, 2004
Posts: 438
|
| Posted: Sun Jun 13, 2021 9:48 pm Post subject: Re: ACN super squishies |
|
|
| I neva see this subject for long time but I have a 90x94 with cb super pro and open chambers with fk10 straight up and 10t1 Comp 48ida 35 deg and 87 octane and 1.56/1.09 and can only get 13.0 quarter no burnout street. When I look at the piston it tells me it’s not about compression but how much exhaust can be removed from chamber to make it efficient and run cool. |
|
| Back to top |
|
|
txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
|
| Posted: Mon Jun 14, 2021 5:09 am Post subject: Re: ACN super squishies |
|
|
| I built mine primarily for the cooling. Soon I’ll post back how it runs |
|
| Back to top |
|
|
Dauz
Samba Member
Joined: January 05, 2010
Posts: 1790
|
| Posted: Mon Jun 14, 2021 10:28 am Post subject: Re: ACN super squishies |
|
|
| maui wrote: |
| I neva see this subject for long time but I have a 90x94 with cb super pro and open chambers with fk10 straight up and 10t1 Comp 48ida 35 deg and 87 octane and 1.56/1.09 and can only get 13.0 quarter no burnout street. When I look at the piston it tells me it’s not about compression but how much exhaust can be removed from chamber to make it efficient and run cool. |
I forget, are you running SS? Sounds like you could take advantage of a dyno session. Advance that cam 2 degrees (assuming valve clearance) and adjust jetting. I'm positive you can break into the 12s with that combo in street trim and adequate traction. |
|
| Back to top |
|
|
74 Thing
Samba Member
Joined: September 02, 2004
Posts: 7390
|
| Posted: Mon Jun 14, 2021 10:33 am Post subject: Re: ACN super squishies |
|
|
| maui wrote: |
| I neva see this subject for long time but I have a 90x94 with cb super pro and open chambers with fk10 straight up and 10t1 Comp 48ida 35 deg and 87 octane and 1.56/1.09 and can only get 13.0 quarter no burnout street. When I look at the piston it tells me it’s not about compression but how much exhaust can be removed from chamber to make it efficient and run cool. |
What is 1.56/1.09, what size venturis, and what size exhaust? |
|
| Back to top |
|
|
Ian Godfrey
Samba Member
Joined: September 25, 2006
Posts: 1137
Location: Melbourne Australia
|
| Posted: Mon Jun 14, 2021 5:20 pm Post subject: Re: ACN super squishies |
|
|
1.56/1.09 are the 3/4 gears
Good to hear from you Maui |
|
| Back to top |
|
|
74 Thing
Samba Member
Joined: September 02, 2004
Posts: 7390
|
| Posted: Tue Jun 15, 2021 11:25 am Post subject: Re: ACN super squishies |
|
|
| Ian Godfrey wrote: |
1.56/1.09 are the 3/4 gears
Good to hear from you Maui |
Yeah, my mistake, I figured that out after I already posted. Thanks |
|
| Back to top |
|
|
maui
Samba Member
Joined: May 16, 2004
Posts: 438
|
| Posted: Wed Jun 16, 2021 10:30 am Post subject: Re: ACN super squishies |
|
|
| 42 vents 175xf7x200 and 1.75 headers and 3in. Flowmaster It did a 11.99 with race gas and 32 degs 215/65/15 dots and with a burnout and 17 lbs air but broke R/P so I keep it like I have it. Aloha |
|
| Back to top |
|
|
maui
Samba Member
Joined: May 16, 2004
Posts: 438
|
| Posted: Thu Jun 24, 2021 2:05 pm Post subject: Re: ACN super squishies |
|
|
| maui wrote: |
| I neva see this subject for long time but I have a 90x94 with cb super pro and open chambers with fk10 straight up and 10t1 Comp 48ida 35 deg and 87 octane and 1.56/1.09 and can only get 13.0 quarter no burnout street. When I look at the piston it tells me it’s not about compression but how much exhaust can be removed from chamber to make it efficient and run cool. |
155xf2x190/42vents |
|
| Back to top |
|
|
txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
|
| Posted: Sat Jul 03, 2021 7:52 pm Post subject: Re: ACN super squishies |
|
|
SS engine cam break in done. No issues, just that my straight cut gears are loud as hell
|
|
| Back to top |
|
|
Dauz
Samba Member
Joined: January 05, 2010
Posts: 1790
|
| Posted: Sun Jul 04, 2021 7:16 am Post subject: Re: ACN super squishies |
|
|
| txoval wrote: |
| just that my straight cut gears are loud as hell |
You seem surprised.
Nice ride! |
|
| Back to top |
|
|
txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
|
| Posted: Sun Jul 04, 2021 8:48 am Post subject: Re: ACN super squishies |
|
|
First set I have ever had that were loud...
Loud as the SloVal car
Here’s a good comparison to gear noise
https://m.youtube.com/watch?v=DUDm2DVMiGk
Last edited by txoval on Sun Jul 04, 2021 4:52 pm; edited 1 time in total |
|
| Back to top |
|
|
mark tucker
Samba Member
Joined: April 08, 2009
Posts: 23937
Location: SHALIMAR ,FLORIDA
|
| Posted: Sun Jul 04, 2021 9:27 am Post subject: Re: ACN super squishies |
|
|
| dam thats a lot of gear noise....I would do some work to them to quiet them down a bit... |
|
| Back to top |
|
|
txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
|
| Posted: Sun Jul 04, 2021 11:27 am Post subject: Re: ACN super squishies |
|
|
Yeah Mark, I wish I would have. I’ve never had straight cuts this loud.
This is second time I’ve used this case/crank and the last set of gears weren’t loud at all. (Standard CB gears).
These Pro Series gears have less lash and the teeth were sharp (if that makes sense) I did a little hand work to them, but obviously not enough.
I’ll be living with them now...not taking it apart |
|
| Back to top |
|
|
txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
|
|
| Back to top |
|
|
sled
Samba Member
Joined: February 16, 2005
Posts: 6179
|
| Posted: Sun Jul 04, 2021 1:52 pm Post subject: Re: ACN super squishies |
|
|
wow, that sounds terrible. Good news the engine is in and broken in though!! hopefully you can live with the noise.
_________________
drive your split. |
|
| Back to top |
|
|
txoval
Samba Member
Joined: January 23, 2004
Posts: 3552
Location: The Woodlands, TX
|
| Posted: Sun Jul 04, 2021 4:48 pm Post subject: Re: ACN super squishies |
|
|
Best picture I have of the gears
|
|
| Back to top |
|
|
|
