Head work?

Reply Subscribe

Thread Tools

Search this Thread

Oct 3, 2017 | 10:34 PM

REW13

Thread Starter

Seasoned HDF Member

Joined: Nov 2016

Posts: 5,801

Likes: 809

From: South Carolina

Head work?

On an 01 fxdl, would it benefit hp gain from a port and polish? Not really wanting to a full build or go big. Just want a little more from the motor.

Thanks

Oct 4, 2017 | 06:07 AM

Hillsidecycle.com

Sponsor

Joined: Dec 2007

Posts: 12,084

Likes: 829

I'll help nicely, and the install of a set of Andrews 21 cams will make a nice combo.
Scott

Oct 4, 2017 | 07:06 AM

prodrag1320

Banned

Joined: Sep 2009

Posts: 3,569

Likes: 624

From: deland,florida

air flow is the key to making any kind of power,just make sure the headwork compliments the rest of your build

Oct 5, 2017 | 04:59 PM

REW13

Thread Starter

Seasoned HDF Member

Joined: Nov 2016

Posts: 5,801

Likes: 809

From: South Carolina

Already have andrews 37 cams, gears and re worked carb, with v&h straight shot pipes, so a wee bit of work is what I'm looking at doing

Thanks

Oct 6, 2017 | 05:32 AM

Hillsidecycle.com

Sponsor

Joined: Dec 2007

Posts: 12,084

Likes: 829

Those Andrews 37's optimze at 9.8-10.0 compression.
That said, mighty tough to get there without a domed piston, in an 88", and i do not believe those are offered anymore.
Scott

Oct 6, 2017 | 08:27 AM

djl

HDF Community Team

Joined: Jun 2006

Posts: 12,763

Likes: 2,597

From: san antonio

CP/Carrillo offers several domed pistons for the 88" motor; 8.6cc, 9.3cc and 9.9cc. I would think the 9.9cc would be perfect with the 37 cams and a .030" head gasket. Static would be about 9.9 and CCP about 190; should be a runner for an 88" motor. You might find that you will need a programmable ignition to work the timing.

Oct 6, 2017 | 10:35 AM

Hillsidecycle.com

Sponsor

Joined: Dec 2007

Posts: 12,084

Likes: 829

And in the whole picture, if pistons are to be utilized, then may juat as well bore to say 98", for very short money.
Good info on the 88" pistons djl, thought that a 3.750" bore T/C piston was lost in the weeds.....guess not.
Scott

Last edited by Hillsidecycle.com; Oct 6, 2017 at 12:16 PM.

Trending Topics

Long term storage for my broke SGS.....

45

1.3k
Do you downshift gears to slow down or just brakes?

26

512
Anyone use Flip-over or Flip-back helmet?

24

612
Clutch cable dust cover options?

23

596
J & S Jack Problem

23

695

Oct 6, 2017 | 11:19 AM

djl

HDF Community Team

Joined: Jun 2006

Posts: 12,763

Likes: 2,597

From: san antonio

Quote:

Originally Posted by Hillsidecycle.com

And in the whole picture, if pistons are to be utilized, then may juat as well bore to say 98", for very short money. Good info on the 88" pistons djl, thought that a 3.750" bore T/C piston was lost in the weeds.....guess not.Scott

Only reason I know is that I recently bought a set of CPs for a 98" motor and saw the TC88 pistons in the catalog; otherwise I would not have known either. Having said that, I could have stuck my foot in mouth (not the first time) as I have not checked availability but it was their 2017 catalog.:icon_wink

Last edited by djl; Oct 6, 2017 at 11:21 AM.