Opinions wanted on 117CI cam choice...

[Mother]

might be a long post..sorry.

I am not afraid to rev my motors and usually like to 'think outside the box' or the norm when spec'ing a build. I am putting together a 4 3/8" stroke 117 with compression between 11 and 11.4 depending on the sticks I end up with. the build will consist of:
worked Delkron heads 2.02"int 1.615"exh
DTT ignition and a V&H stepped comp pipe...maybe
R&R 4 3/8 crank
Wiseco pistons (dome cc to be determined)
I was looking at S&S 640G's with a 4* advance, but unsure.
I hate to jump on a bandwagon but the TW-9f's look really good as do the TR650g's. The late intake closing of the 640's are what is worrying me. I would like to come in around 200ccp minimum. i ride about 15,000 miles a summer and pull a trailer twice a year with my current motor.

The Leineweber T7's might be an option, but I feel I am leaving too much on the table if i dont step up the camshaft's lift to take advantage of the heads( It's an addiction)
I would really like to hear any opinions and first hand experience with the above camshafts.

Once the camshaft is settled on the pipe debate will happen. Either my current V&H comp stepped pipe or a RB prostock spyder with 2" primaries....

Thank you in advance guys

[jam65]

With that comp. in mind,the 662-2 could be another option.

[xzo124]

With that comp. in mind,the 662-2 could be another option.

, But fuel selection is a must ...pulling a trailer may experience pinging....xzo

[7hogs]

662-2

[Mother]

Hey 7, what's your reason for the 662's? personal experience? any info you have I want

[xzo124]

Ive got 20,000 miles on the 662-2 on a 11.0 ,124 and they are great , only like I said good fuel is a must ,93 octane.....xzo

[Merc63]

Im running SS 640s with a 120. Mild compression, ccp 170. 126hp/137tq

Mid range pulls hard, lots of torque.  HP would come up more with better flowing heads in my case.

[aharp]

In my 124 I've run both the 662-2 and the 662-3. The -2 I ran at 218ccp and it was a bitch to tune but had so much torque it was barely controllable  and with a slipping clutch I saw around 145hp/152tq. To make it easier to tune I put in the -3, dropped the ccp to 203 and first run was 148hp/145tq. Trading tq for hp at this point. The -3 cam is like a high lift 640 on paper. Both are nice and quiet on the valve train and the -3 is easier to ride when letting the clutch out but not as much fun if that makes sense.

[HILLSIDECYCLE]

might be a long post..sorry.

I am not afraid to rev my motors and usually like to 'think outside the box' or the norm when spec'ing a build. I am putting together a 4 3/8" stroke 117 with compression between 11 and 11.4 depending on the sticks I end up with. the build will consist of:
worked Delkron heads 2.02"int 1.615"exh
DTT ignition and a V&H stepped comp pipe...maybe
R&R 4 3/8 crank
Wiseco pistons (dome cc to be determined)
I was looking at S&S 640G's with a 4* advance, but unsure.
I hate to jump on a bandwagon but the TW-9f's look really good as do the TR650g's. The late intake closing of the 640's are what is worrying me. I would like to come in around 200ccp minimum. i ride about 15,000 miles a summer and pull a trailer twice a year with my current motor.

The Leineweber T7's might be an option, but I feel I am leaving too much on the table if i dont step up the camshaft's lift to take advantage of the heads( It's an addiction)
I would really like to hear any opinions and first hand experience with the above camshafts.

Once the camshaft is settled on the pipe debate will happen. Either my current V&H comp stepped pipe or a RB prostock spyder with 2" primaries....

Thank you in advance guys

If you like to spool it off, then the .640 is your man.
Scott

[Mother]

Now I came across the Wood TW-9bg...hmmmmm.  I will be calling Bob and calling Tman.

[aceman2101]

just for giggles,might want to take a look at the Wild Things 546 cam. I had one in a 117. It was very quite for a .630 lift cam and made good power. 

[torqueinc]

  Forget the woods they are almost as rackety as a leinweber

Tman 660 sm @ 10.5:1  and put a bigger valve in those delkron heads...bout a 2.08 or so would help a ton

Do you already have the heads or is this something you are going to purchase ?

[7hogs]

Hey 7, what's your reason for the 662's? personal experience? any info you have I want

It was recommended to me the torque curve is great

117
MVA heads cut to fit 20* dome pistons
58mm
5.3 injectors
662-2 +4

no issues with pinging

[Mother]

I'm working with a guy at Delkron. We are working out custom pistons with Wiseco now and should have the heads in my hands any day now. 

[Showdog75]

just for giggles,might want to take a look at the Wild Things 546 cam. I had one in a 117. It was very quite for a .630 lift cam and made good power. 

I've got a set of these slated to go in my long term 120" project. Send your heads to Bob Wright and you'll be set.

[FXDRYDR]

Now I came across the Wood TW-9bg...hmmmmm.  I will be calling Bob and calling Tman.

Talk to Don too if he's doing your heads.  Baisley did my heads and strongly recommended the  9b for my riding style.  Also said he liked it's lower TDC lift amongother things.  Couple other knowledgeable folks mentioned the same thing re lower TDC lift and flow. 

IMO it's not noisy and mine is quieter than a 124 running a set of 662-2s I heard.  IMO it has the sound of a solid lifter Chevy.  A good sound. 

[Mother]

FXDRYDR, what's your riding style?   

[FXDRYDR]

Mostly around town, in-state and occasional medium trips.  One-up 99 percent of the time.  I like to twist it and go through the gears.  Tend to ride aggressively when safe.  Go to T&T when I can.

Interestingly, I rarely go through all the gears hard any more on the street.  Maybe 1 through 3 and shift up to 5th.  Usually just cruising along and shifting at 3K has me ahead of traffic and I do a lot of that.  Go through the gears hard less frequently than when it was 98" because there's so much power.  No complaint, just that even a couple gears and I'm well over the limit fast.  Need open road and no traffic to safely do that whereas I'd blast off from stop lights and hit the on-ramps pretty hard fairly regularly.  Now, get the same result with less throttle.     

Roll-on power is fantastic.  Never felt my 98 was a slouch, but there's no comparison between the two and hard roll-ons.  When on the freeway and I want to pass - or like over the weekend I rode about 1/2 way up the state along Michigan's east coast - when passing on the two-laners, it's nice to blow past several cars at once with just a roll on - and you don't need much space to blast by either.   

[FXDRYDR]

Mother, check your pm.  Let me know.

[Merc63]

I have a set of gear drive SnS625s if u want, cheap

[Mother]

I'm gonna try the S&S 640's. I got a gut feeling the mid range will pull hard and all the way through. If they end up being too soft down low I will pull them and run Tman 662-2's

[Merc63]

My compression is really mild, 170ccp... the 640 is a big sluggish down low, but mid range and top end pull hard!

[Max Headflow]

I'm gonna try the S&S 640's. I got a gut feeling the mid range will pull hard and all the way through. If they end up being too soft down low I will pull them and run Tman 662-2's

Right pipe and they'll pull from 2500..

Max

[Mother]

ccp will fall between 195 and 200.

Max, as for the pipe my currently pipe, the V&H comp pipe is soft down low. I am leaning towards a RB LSR prostock with 2" primaries....maybe a Wegner....

[Jaycee1964]

You have enough cubic inchs to pull down low respectably.  The 640 should work very well and is a proven cam.  If you want the power right off the line and thru 4500+ then go with the 662-2  The RB pipe is nice but for you thr 2" primaries may be too big and may cost your bottom end.  I have 2" primaries on my RB black hole spider and love it on a 124".  The LSR pro stock will attract the popo as they are pretty much a strait pipe and will break windshields.... The Black hole is a good compromise as you can tool by and not attract but twist the grip and let it rip.. 1 7/8 primaries should be perfect for you.