ZUKIWORLD Online | Suzuki 4x4 Editorial and Forum

ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: JDMCRX on June 18, 2004, 04:01:07 AM

Title: Light Weight crank pulley Rocky-Road
Post by: JDMCRX on June 18, 2004, 04:01:07 AM
Im just wonderina if anyone has tried it and what they thought of it. (http://www.rocky-road.com/media/Sidekick_UnderDrive.jpg)
Title: Re: Light Weight crank pulley Rocky-Road
Post by: jookycola on June 18, 2004, 07:13:11 AM
looks purdy  ;D

but from my experience with Import Tuners those things can mostly do more bad than good.  the Altenators on these trucks are already seriously underpowered, i personally wouldn't aid in under powering the electrical system any more with an underdrive pulley.

Actually, if you can live without power steering and A/C i found when the belt to those snapped and were no longer dragging on the crank pulley it resulted in a noticeable addition of power...not Vin Diesel like power but i definitely felt a stronger spring in it's step.

I however can not live with out A/C, so i'm back to having my balls clipped (LOL)
Title: Re: Light Weight crank pulley Rocky-Road
Post by: JDMCRX on June 18, 2004, 07:41:14 AM
All i run is Alternator im looking for a bit more power this thing is a dog man
Title: Re: Light Weight crank pulley Rocky-Road
Post by: Mike71 on June 18, 2004, 08:59:15 AM
i wouldnt do that..the stock alt is realy really really low on the out put scale (it is a trooper however and will last what seems like forever)

i would do spark plugs/wires and an air filter...i did that and i can deff tell a difference in throttle response. i am also going to get a snorkle so that should help the stiffled air box out. also try a high flow cat and exh. that should help ALOT

u could always go the turbo route..thats what im doing  ;D :P
Title: Re: Light Weight crank pulley Rocky-Road
Post by: explosivo on June 18, 2004, 09:13:01 AM
Quote
dog man

Quick! Take some pics and send them to the tabloids ;D
Title: Re: Light Weight crank pulley Rocky-Road
Post by: TITAN on June 18, 2004, 09:27:58 AM
Quote

Quick! Take some pics and send them to the tabloids ;D



LOL!!
Title: Re: Light Weight crank pulley Rocky-Road
Post by: jerryp58 on June 18, 2004, 12:09:41 PM
In the scheme of things (without adding a turbo or supercharger) I don't think there's much you can do that will boost the power of these things too much, but I'm casting another vote for exhaust modifications (header, hi-flow cat, 2" cat back) if you haven't already done that.
Title: Re: Light Weight crank pulley Rocky-Road
Post by: JDMCRX on June 18, 2004, 01:25:31 PM
I have a intake and Header and Exhaust and a highflow cam. :(
Title: Re: Light Weight crank pulley Rocky-Road
Post by: Mac on June 18, 2004, 01:49:17 PM
Quote
In the scheme of things (without adding a turbo or supercharger) I don't think there's much you can do that will boost the power of these things too much, but I'm casting another vote for exhaust modifications (header, hi-flow cat, 2" cat back) if you haven't already done that.


I would disagree, I have found that a cam will really wake these little motors up, in particular, with intake, and exhaust improvments.

Mac
Title: Re: Light Weight crank pulley Rocky-Road
Post by: 1bigtracker on June 18, 2004, 01:51:26 PM
Quote
highflow cam. :(


like a calmini one?

stu
Title: Re: Light Weight crank pulley Rocky-Road
Post by: JDMCRX on June 18, 2004, 02:21:18 PM
yeah i was wondering how much difference there realy is? anyone?
Title: Re: Light Weight crank pulley Rocky-Road
Post by: jerryp58 on June 18, 2004, 02:32:09 PM
I haven't noticed much in the way of intake options (like Calmini's carburetor setup) for these things.  What do some of you have?

Also, what RPM range (low, mid, high) cams are you all choosing?

I guess what I'm thinking is that most upgrades get you low single digit % HP gains (if you're lucky).  Headers are often quoted around 10-15% increase.  With my 80+HP, that'd still leave me under well 100 HP.
Title: Re: Light Weight crank pulley Rocky-Road
Post by: biker on June 18, 2004, 04:19:44 PM
I agree with Mac. I put a high torque cam in mine with 2" exhaust(no cat) and put a K&N type cone filter on. I am pushing 32 x 11.5 tires on the highway up and down hills in 5th gear. It has been a huge gain and we are estimating HP at approx 120. My next step is to add a header when cash allows.
Title: Re: Light Weight crank pulley Rocky-Road
Post by: 1bigtracker on June 18, 2004, 04:23:10 PM
Quote

Also, what RPM range (low, mid, high) cams are you all choosing?

quote]
i have never seen a place that sells a high or low cam.  they all say "mid range". whats so mid range about 5500RPM???

stu
Title: Re: Light Weight crank pulley Rocky-Road
Post by: biker on June 18, 2004, 04:30:39 PM
I had mine ground to provide maximum torque at low rpm, I don't need a 5000 rpm screamer
Title: Re: Light Weight crank pulley Rocky-Road
Post by: 1bigtracker on June 18, 2004, 04:35:16 PM
what is getting a cam ground? do they just take a little off the lobes.  
could you get a cam ground for more torque and HP?  could you get a cam ground for more power in the whole RPM range?

stu
Title: Re: Light Weight crank pulley Rocky-Road
Post by: biker on June 18, 2004, 04:47:59 PM
Shoot an email off to Geoff at Colt cams. He will be able to answer your questions better than me. This is the guy that did my cam and I'm very happy about the results. They simply grind off material in a certain way to change the power that a motor can deliver. His site is www.coltcams.com
Title: Re: Light Weight crank pulley Rocky-Road
Post by: cj on June 18, 2004, 04:57:31 PM
Grinding the cam alters valve lift and duration, as well you may also weld a little extra material and then grind to get the characteristics you are looking for. It can alter where the torque/hp is developed in the rev range and how broad or narrow that power band is. You may also need to alter the valve springs. Cam timing can also shift the power band. You will also need to look at your ignition timing after making changes.
Title: Re: Light Weight crank pulley Rocky-Road
Post by: jerryp58 on June 19, 2004, 04:28:58 AM
Quote
I agree with Mac. I put a high torque cam in mine with 2" exhaust(no cat) and put a K&N type cone filter on. I am pushing 32 x 11.5 tires on the highway up and down hills in 5th gear. It has been a huge gain and we are estimating HP at approx 120. My next step is to add a header when cash allows.


120 HP would be impressive.  Have you ever put it on a dyno?

I guess I've read these things start at 80 hp |removethispart|@ 5400 rpm and 94 lb.-ft. |removethispart|@ 3300 rpm.

If it got a 20% increase in HP from a cam, that'd be 96 HP.

If it got another 20% increase from headers and a free flowing exhaust it'd go to 115 HP.

If it added another 5% from an freer flowing open air intake element it'd go to 120 HP.

Hmmmm... those gains are probably on the high side and may not actually be cumulative but that IS impressive sounding.  On the lower end using 10%, 10% and 2%, it'd be 99 HP.  Not as impressive, but not bad.  There's still ignition upgrades too.

I guess I watch some of these TV Auto shows and they add free flowing exhaust, new intake, hi-power ignition, and cams and don't quite make a 20% gain in total HP for a lot of $$$.

It'd sure be nice to see one of the off road magazines or e-zines do some dyno testing of the 1.3L & 1.6L engines and then some road/off-road testing after some of these mods.
Title: Re: Light Weight crank pulley Rocky-Road
Post by: 1bigtracker on June 19, 2004, 01:38:34 PM
Quote


It'd sure be nice to see one of the off road magazines or e-zines do some dyno testing of the 1.3L & 1.6L engines and then some road/off-road testing after some of these mods.

well you know, Fred W. of Petersons in on this site once and a while.  dose some one wana shoot him a PM about dynoing a 1.6 then putting a cam, intake, header, exhaust, and bigger coil on it?

stu
Title: Re: Light Weight crank pulley Rocky-Road
Post by: jerryp58 on June 19, 2004, 02:06:30 PM
Quote

well you know, Fred W. of Petersons in on this site once and a while.  dose some one wana shoot him a PM about dynoing a 1.6 then putting a cam, intake, header, exhaust, and bigger coil on it?

stu


Yea, I know he's doing a piece on a Suzuki right now; that's why I kind of dangled the idea out there ;)  Like you suggested, maybe someone here who knows him can ask the question or at least point him to this thread ;D
Title: Re: Light Weight crank pulley Rocky-Road
Post by: 90Stomper on June 20, 2004, 03:35:56 PM
ok, i bought one of these from RR.  it DID help the power a little bit, but in the winter with the lights on the the heater at full blast (i have no a/c) if the idle got real low from kicking it out of gear coming to a stop the belts would squeel and the lights would dim.  also it turns the water pump a lil slower so it ran a tad hotter.  if you really want one mine is only 4 months old and has a lil of the blue worn off, its yours for $20.  email me.

got bad news for ya.  i have a cali cam, header, hiflow exhaust, no cat, flowmaster muffler, k&n, ngk sparks, new wires, blaster coil, carb riser, el. fan and no ac and mine is pretty doggy on the hyway with 11.5 x 30s.  can only go 70mph with no wind on a flat in 5th gear.  i pretty much only use 5th like overdrive on the road.  o and mine is a lil heavy (tin top, bumpers & winch, tires)  and mine is an 8v.  just live with it or get gears, which is what im ganna do.... good luck. :-/
Title: Re: Light Weight crank pulley Rocky-Road
Post by: JDMCRX on June 28, 2004, 04:02:34 AM
So what are u saying the cam is not impresive ??

Ill take the crank pulley Pmed u