May 09, 2024, 02:49:14 AM

News:


Which Cams

Started by To The Max, December 31, 2014, 04:24:58 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

To The Max

January 09, 2015, 11:37:12 PM #50 Last Edit: January 09, 2015, 11:46:30 PM by To The Max
Comps 10.2 tuner is Tmax  and are you saying the printout is showing rich? And I tuned it

05FLHTC

Quote from: To The Max on January 09, 2015, 11:37:12 PM
Comps 10.2 tuner is Tmax  and are you saying the printout is showing rich? And I tuned it

I'd think you need to get it into a tuner & get a real tune before ya make a final decision  :idea:
Illinois the Corruption Capitol of USA

To The Max

The dyno guy said he was very happy with the horse power and torque curves  and the air fuel ratio, told me not to touch it .

autoworker


[/quote]
Just a little jumpy till about 1700 rpm would like a little moor torque through to 2400 and really good through 6200 - 6300 good for overtaking and really good if knock it down a couple of cogs, returns about 400 miles from a tank without re filling at 65-75 mph cruise.
[/quote]

10.7-10.8 compression would bring your low rpm right on in. Granted this is coming from a 55 cam fan.
It must be true,I read it on the internet.

05FLHTC

Quote from: To The Max on January 09, 2015, 10:50:19 PM
Just a little jumpy till about 1700 rpm would like a little moor torque through to 2400 and really good through 6200 - 6300 good for overtaking and really good if knock it down a couple of cogs, returns about 400 miles from a tank without re filling at 65-75 mph cruise.

More indications that it needs tune 400 miles on a tank???  :scratch:

Quote from: To The Max on January 10, 2015, 05:37:52 AM
The dyno guy said he was very happy with the horse power and torque curves  and the air fuel ratio, told me not to touch it .

That answer is not something I would take for granted not that easily, if it don't run smooth and it's getting 400 miles from a tank of fuel it definitely needs to be tuned an experienced dyno guy would at a minimum be able to make it smoother.

Your bike do what ya want but based on the info you posted it needs to be tuned by a competent dyno operator.
Illinois the Corruption Capitol of USA

Hossamania

Another big fan of the 55's.
If the government gives you everything you want,
it can take everything you have.

Barrett

Y'all are talkin me into squeezing mine a little more.. I'll shoot for 10.76:1/9.82:1/207ccc

Sunny Jim

I have ridden 'to the Max,s' bike.
It all comes together above 2700 rpm approx. and pulls like a train. I think he wants that pulling power earlier . I know I would on that bike. He has it running well though. I would change the cams.
Max is an Ol' rev head. I think his quad cam Lexus V8 hilux with blower is testament to his need for speed. (600 hp).

Barrett

He should look into the 30T pulley.. I did it on my 08FXDF and it's hard to beat for the bang for the buck factor..

To The Max

Quote from: To The Max on January 09, 2015, 10:50:19 PM
Quote from: sfmichael on January 09, 2015, 09:48:22 PM
pretty respectable numbers  :up: - how's it ride?   :chop:
Just a little jumpy till about 1700 rpm would like a little moor torque through to 2400 and really good through 6200 - 6300 good for overtaking and really good if knock it down a couple of cogs, returns about 400 miles from a tank without re filling at 65-75 mph cruise.
Err just made a little mistake, should read 400 Kilometers  per full tank not miles I'm a dummy.

Sunny Jim

Compresion Max , Compression. 10.19:1 is not so  sweet for 55s. My tm577s , which are similar to 55s , like 10.5:1 +.
Maybe some 585s and a 030 HG.
You can't the music! Nobody can stop the music!

To The Max

Im ready for bed help me whats a 30hg

rigidthumper

.030" thick head gasket.
Ignorance is bliss, and accuracy expensive. How much of either can you afford?

speedzter

No magic fix by changing cams or a few points of compression.
All you will do is move things around a little, but won't be the change your looking for.
dsvracer and a few others gave you a good hint a few pages back , you are using basically stock heads.
Tuning also very important .
I don't get this comment:
"Just a little jumpy till about 1700 rpm would like a little moor torque through to 2400 "
How much time do you spend at those revs ?


Don D

Quote from: To The Max on December 31, 2014, 04:24:58 AM
I am thinking of changing the Andrews 55g cams I'm running, would like to get the torque happening
a little bit sooner. I have a 08 softail with  103 cylinders sc, compressor heads set at 10.2, sc 50mm throttle body and bassani 2-1 exhaust. and of course would like a bit more horsepower without getting bumped around on partial throttle opening. yes I want it all can any body help.

You have closer to 10.5:1 if the head gasket is stock. The heads are stock and just milled for added compression. Should be fine up to a peak power point of 5-5.5K. As far as low end goes, I think you are describing throttle sensitivity being jumpy and rough low speed operation. Well with the TB, compression, and Tmax I think that is understandable. The amount timing in the low speed cells would have influence as well. Add the cams overlap and there may be points of reversion at low speed. All add up to what you describe

Much smoother operation will come by changing cams to one that is a single pattern in the 245° area with wider LSA say 104-106°. Next step would be remove the Tmax and use the OEM Delphi ECU and a full featured tuner such as TTS or Power Vision, use the tuners choice.

To The Max

Quote from: speedzter on January 16, 2015, 06:36:49 AM
No magic fix by changing cams or a few points of compression.
All you will do is move things around a little, but won't be the change your looking for.
dsvracer and a few others gave you a good hint a few pages back , you are using basically stock heads.
Tuning also very important .
I don't get this comment:
"Just a little jumpy till about 1700 rpm would like a little moor torque through to 2400 "
How much time do you spend at those revs ?
Yes I think the heads need to come of and I'm looking at cams at this time. the information that has been so kindly given has been a lot of help. going on a one week ride soon so I wont touch it till I get back and I will let you know how it goes. By the way on light throttle low load it jerks a bit as soon as I apply slight load it smooths out . taking a little ignition timing out at those points has helped but its still there not bad though. also I would like the power to come on a little sooner.

dirtracin23

Quote from: To The Max on January 16, 2015, 02:53:28 AM
Quote from: To The Max on January 09, 2015, 10:50:19 PM
Quote from: sfmichael on January 09, 2015, 09:48:22 PM
pretty respectable numbers  :up: - how's it ride?   :chop:
Just a little jumpy till about 1700 rpm would like a little moor torque through to 2400 and really good through 6200 - 6300 good for overtaking and really good if knock it down a couple of cogs, returns about 400 miles from a tank without re filling at 65-75 mph cruise.
Err just made a little mistake, should read 400 Kilometers  per full tank not miles I'm a dummy.

:scratch:

I was wondering about that. 400 miles to a tank would lead me to think it was damn lean. I was like..... There's no way. It wouldn't hardly even run if it was starved that much.   :teeth:
A cold beer, a hot woman, and a fast Harley
What else could a man possibly need?

Rusty Steel

Quote from: dirtracin23 on January 21, 2015, 11:07:33 AM
Quote from: To The Max on January 16, 2015, 02:53:28 AM
Quote from: To The Max on January 09, 2015, 10:50:19 PM
Quote from: sfmichael on January 09, 2015, 09:48:22 PM
pretty respectable numbers  :up: - how's it ride?   :chop:
Just a little jumpy till about 1700 rpm would like a little moor torque through to 2400 and really good through 6200 - 6300 good for overtaking and really good if knock it down a couple of cogs, returns about 400 miles from a tank without re filling at 65-75 mph cruise.
Err just made a little mistake, should read 400 Kilometers  per full tank not miles I'm a dummy.

:scratch:

I was wondering about that. 400 miles to a tank would lead me to think it was damn lean. I was like..... There's no way. It wouldn't hardly even run if it was starved that much.   :teeth:
It's all good if he got 80+ per gallon, or is it Liters down under. :idunno:
If it ain't broke... Fix it until it is.

Arseclown

Hi all
I have a similar predicament.  I'm running s&s 585 cams in a 107ci motor with about 10.4 comp - no work to the stock 96ci heads. No tachometer or dyno sheet but she seems to come alive well above cruising revs. Would like her to come on earlier in the midrange or lower. I'd prefer not increasing comp as I can't always get good fuel where I am. What other cams could I consider? Would a wood tw5-6 do the trick? Most of the earlier intake closing cams don't like comp above 10:1.

joe_lyons

Powerhouse Cycle & Dyno - Performance is our passion 816-425-4901

Jaycee1964

If you have to stop and think about if it is right or wrong, Assume it is wrong.

Barrett

January 22, 2015, 06:35:50 PM #71 Last Edit: January 22, 2015, 06:51:04 PM by Barrett
Quote from: Arseclown on January 22, 2015, 05:13:43 PM
Hi all
I have a similar predicament.  I'm running s&s 585 cams in a 107ci motor with about 10.4 comp - no work to the stock 96ci heads. No tachometer or dyno sheet but she seems to come alive well above cruising revs. Would like her to come on earlier in the midrange or lower. I'd prefer not increasing comp as I can't always get good fuel where I am. What other cams could I consider? Would a wood tw5-6 do the trick? Most of the earlier intake closing cams don't like comp above 10:1.
Advancing them +4 is a cheap and easy way to move the R's 3-400 to the left.. 

Arseclown

Quote from: Jaycee1964 on January 22, 2015, 05:50:53 PM
Quote from: joe_lyons on January 22, 2015, 05:35:42 PM
Andrews 54

:agree:  You beat me to it.

I didn't think the 54 cams liked compression beyond 10:1?
My bike is currently set at 10.4.

Jaycee1964

Quote from: Arseclown on January 22, 2015, 09:58:50 PM
Quote from: Jaycee1964 on January 22, 2015, 05:50:53 PM
Quote from: joe_lyons on January 22, 2015, 05:35:42 PM
Andrews 54

:agree:  You beat me to it.

I didn't think the 54 cams liked compression beyond 10:1?
My bike is currently set at 10.4.

Nope,  The 57 is more sensitive in your range.  I have seen the 54 run well at 10.4-10.5 without issues and it'll be a strong one too
If you have to stop and think about if it is right or wrong, Assume it is wrong.

harpwrench


Quote from: Arseclown on January 22, 2015, 05:13:43 PM
Hi all
I have a similar predicament.  I'm running s&s 585 cams in a 107ci motor with about 10.4 comp - no work to the stock 96ci heads. No tachometer or dyno sheet but she seems to come alive well above cruising revs. Would like her to come on earlier in the midrange or lower. I'd prefer not increasing comp as I can't always get good fuel where I am. What other cams could I consider? Would a wood tw5-6 do the trick? Most of the earlier intake closing cams don't like comp above 10:1.

No dyno sheet, does that mean it hasn't been tuned? Carb or FI? Exhaust? What do you call cruise range?