Jims 131 Cam Info

[Don D]

What cam is in this motor?  Bushing cam plate and hydra tensioners?

[mike jesse]

All I have ever seen is the cam lift. .658 in.

[Don D]

Hi Mike, must be SE266E

[rigidthumper]

I believe the original cam for the Jims engines was the SE264- 24/60 .635" lift, 60/22 .635"   .219"/.211" TDC lift. Underwhelming as received. Put one in an 08 CVO with stock TB and V&H duals with V&H slip-ons.

[Ohio HD]

They don't have enough compression to support that set of cams.     
Heads are probably mediocre I would guess as well.

[Don D]

The Jims 131 has the same ports, head casting, and valves as the HD Ported CNC MVA heads with a different bolt patters and different dowels to accommodate the 4.310 bore . Being as the lift is .658 that matches the 266E. I will have it down next week and see first hand.

[rigidthumper]

The 2008  SE catalog showed the following specs:
Peak Horsepower . . . . . . . . . . 130 @ 6200 RPM
Peak Torque . . . . . . . . . . . . . . 135 @ 3750 RPM
Displacement . . . . . . . . . . . . . . . . . . . . 131 C.I.
Bore x Stroke . . . . . . . . . . . . . . .4.312" x 4.500"
Compression Ratio . . . . . . . . . . . . . . . . . . . 10:1
Intake Valve Diameter . . . . . . . . . . . . . . . 2.080"
Exhaust Valve Diameter . . . . . . . . . . . . . . 1.625"
Cam Lift. . . . . . . . . . . . . . . . . . . . . . . . . . .635"

[Don D]

This is from Jims #25 catalog, I will have it down and get it figured out.  Must be early and later variants.

[RTMike]

Don there was a 6cc difference on the last set of 131 heads I did.

[Don D]

Holy cow. These came in right at 96.6 both. Valve lengths and seat to tip were close but the seat heights did vary (valve job), protrusion 2.002 to 2.015.

[838]

What are you gunna do to this one??

[Don D]

Just set the compression up a little and let the owner get the right peripherals. Last one of these I did we put bigger valves in, 12:1 and an S&S 675 cam and it made 175/165 B motor.

[kd]

Very nice performance bump. 

[Don D]

Has a SE264E, 

[rigidthumper]

  . What's the replacement going to be?

[Don D]

Customer choice, Tman 662-2

[ChromeWhore]

The crate JIMS 131 comes with a SE264 which is a .635 lift cam.

CW

[IronMike113]

Late to post, mine had 266's and Don you did the Heads through Razorback, it Ran Great, Sent it down the Road, Came in Around 160/160 on pump Gas

[itsafatboy]

id put a woods 9fg with a +4 key in,   then at about 11.1 or so it would be a beast

[ChromeWhore]

Late to post, mine had 266's and Don you did the Heads through Razorback, it Ran Great, Sent it down the Road, Came in Around 160/160 on pump Gas

What pipe and throttle body you're using to get these numbers?

CW

[Deye76]

SE264-.635" lift, Jims advertises .658" lift,
different rocker arm ratio?

[ChromeWhore]

SE264-.635" lift, Jims advertises .658" lift,
different rocker arm ratio?

I noticed that too. Appears the new crate has a bigger cam. The older crate does indeed SE264-.635.

CW

[IronMike113]

Late to post, mine had 266's and Don you did the Heads through Razorback, it Ran Great, Sent it down the Road, Came in Around 160/160 on pump Gas

What pipe and throttle body you're using to get these numbers?

CW

Custom Ground Cam From Bob, 628" lift Ho Pro Pipe,58/62 Hpi TB, Heads Done by Don