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  #25  
Old 05-08-2012, 07:03 PM
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Re: Mods for the Adventurous Experimenters

I got mine from www.speedlogixstore.com, but you can find it here on Crower's web site: http://www.crower.com/adjustable-tim...tensioner.html If you want you can order the 6.1 tensioner. I got mine from the dealer with a discount.....about $23 each, as I remember.
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  #26  
Old 05-08-2012, 07:38 PM
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Re: Mods for the Adventurous Experimenters

LOL, 4.whoa, you sound like me. I don't blame you, I was tentative at first when I did the WK, not being sure how far to go, if it would work, or if I'd have problems, etc. Best thing to do, is like you're doing, lots of research, until you're "kind of comfortable"!

I think, on my Jeep, the power band is not low enough yet. I feel like it's just at the bottom of the torque range at ~2000 RPM. I took the Maggie for a ~125 mile run today and did what you are doing.....checking torque/power ranges. With the true autostick in it, I can lock in any gear so it won't upshift or downshift until I move the lever. I drove it about 90 miles in 4th gear, at speeds from ~60-75 mph. It pulls good from ~60/1800 RPM, but it's a whole bunch stronger from ~70/2400 RPM on up. It's also a lot quicker from a start than it used to be. I'd be real interested to see how and where the stock cam comes on, as I never did that kind of testing. I'll also try to do similar testing with the Jeep, but I don't think I can keep it from downshifting.
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  #27  
Old 05-08-2012, 07:45 PM
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Re: Mods for the Adventurous Experimenters

Quote:
Originally Posted by 4.whoa View Post
what is the main difference in a 6.1 springs ? just the spring pressure ?
while $1k is not a huge amount , I have it earmarked for rims( 1st things 1st)
maybe I'll just advanced it 2* ,that shouldn't kill top end too much, right ?

I ran across something while searching that said a 6.1 damper on a 5.7 ,is 5% under driven however elsewhere I saw a damper listed for both the 5.7 and the 6.1 anyone know for sure ? I would imagine an underdrive pulley would help a little in the mileage department as well .
I had the SLP underdrive pulley and it definately made a difference...don't waste your time messing with the stock cam. As Ryan stated previously, going with the 6.1 cam and advancing it a bit would produce the results you're looking for. I almost went with the KRC 210x cam, but went with a Super Spartan custom grind from Stu at Inertia...advanced a bit, that cam would have been great down low...slight lope to it and great street manners.
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  #28  
Old 05-08-2012, 08:55 PM
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Re: Mods for the Adventurous Experimenters

OK,well i took her out a bit today on the bypass and it really seems to start pulling about 3200 rpms & didnt seem to drop off much up top *disclaimer: I dont have a true autostick, or any hills around to help load 'er up so this an approximate butt dynoing *

I have one of Ryans trans tunes and it pulls solidly to 6k and while it MAY be tapering off it shifts to hard (in a GOOD way ) to notice it.

I am going to advance the stocker for now and see what happens, and i'm going to do some looking around @ dampers. i think, for now, thats it.

Well I do REALLY need a custom tune too..... Ryan, are you going to be getting back into the DS stuff ? I really want one! I wanna see how quick the stock hemi can run
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  #29  
Old 05-08-2012, 10:11 PM
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Re: Mods for the Adventurous Experimenters

Russ, I emailed you recently.

You are wasting your time advancing the stock cam when .Trust me.....
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  #30  
Old 05-10-2012, 04:14 PM
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Re: Mods for the Adventurous Experimenters

^ got your message,sent one back.

while I think some more about cam stuff, i was searching dampers. the slp looks good, then a ran across this:
http://www.buyracingparts.com/57-61l-hemi-25-ud.html
Is this the same tci that makes trannys? , if so thats a great deal! Oh, does antone know if there are any differences in the hemi dampers as in belts -ribbs,depth from block,......?
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  #31  
Old 05-12-2012, 09:39 AM
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Re: Mods for the Adventurous Experimenters

OK, someone please check my math-

The stock cam has a LSA of 113*, if it had a installed int centerline of 113* it would be straight up.
since its installed @124* is it advanced ,or retarded? I've been reading lots of different stuff, I thought it was advanced already, but now I'm not so sure.
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  #32  
Old 05-12-2012, 10:04 AM
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Re: Mods for the Adventurous Experimenters

Quote:
Originally Posted by 4.whoa View Post
^ got your message,sent one back.

while I think some more about cam stuff, i was searching dampers. the slp looks good, then a ran across this:
http://www.buyracingparts.com/57-61l-hemi-25-ud.html
Is this the same tci that makes trannys? , if so thats a great deal! Oh, does antone know if there are any differences in the hemi dampers as in belts -ribbs,depth from block,......?
Never heard of the TCI unit on a 5.7L...doesn't mean it isn't good, just don't know anyone running one. The chevy guys like to run them, so they're probably well made. The SLP/Powerbond pulley is a proven performer on the hemis. However, you should give the TCI a try and let us know how you like it, IMO. As long as it has the lip on the back to keep the belt from slipping off, you're good to go.

Regarding the cam...save yourself the trouble of advancing the stocker, only to find that the gain is minimal, get yourself a Sidewinder, advance it a couple degrees, and be happy. You'll be able to chirp the tires with that cam and some advancement. Disable ESP and you may even get some fishtail action for a couple of seconds.
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Old 05-12-2012, 10:20 AM
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Re: Mods for the Adventurous Experimenters

By the way, the other night a couple of ricers were dualing it out from stop sign to stop sign here on Connecticut avenue in DC and I pulled up to the outside lane with my girlfriend in the Jeep. I wasn't going to race 'em, but the guy next to me had his windows down and could hear the Hemi loping away and shook his head as if it wasn't worthy of being in the same company as them (from what I could tell they had some engine work done and the typical coffee can exhaust). At that point, I told my girlfriend to hold on and when the light turned green, I punched it...she burned some rubber and I was instantly a length and a half from the guy next to me, who clearly had a faster car than the guy he had been challenging. It's been a while since I have done that (punched it from a dead stop) and have never burned rubber like that either...I must give kudos to Ryan and David, for I believe the trans tune they provided me with is responsible for getting the extra power to the wheels. I haven't gotten to the track yet and am looking forward to it now. Needless to say, those guys tried thier hardest to catch me (picture the sound of super high reving engines, one of which was hitting it's limiter...not sure which one) and were not able to. When we got to the stop light, the guy rolled up his window, ha ha!

Just thought I'd share...if you go with the SW cam, no one will know your Jeep's cammed and you'll totally surprise them.
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  #34  
Old 05-12-2012, 10:50 AM
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Re: Mods for the Adventurous Experimenters

^ sweet! I've only "played" on the highway so far -some knucklehead ran up on my rear in a const. zone in the middle of the nite-1 lane and was riding about 3' off my bumper....... in a challenger no less! i was already goin 5 over when he caught me,and he started doin the side to side crap.... I gave him about 2 seconds to move next to me when we got out of the const, then stomped on it... i hope it was a 6 cuz i smoked that fool,I looked down n i was almost double the speed limit with only real itty bitty lights in my mirror ah i do love this truck! I also have one of Ryans trans tunes but the most ive gotten (with dry tires) was a chirp But leaving the car wash....


i dont think i'm gonna change the cam for now, i'd like to do more at the same time, and cant do all that right now. from what i read ,I thought the stock cam was advanced,but now i think i read it too fast and its retarded, IDK
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  #35  
Old 05-12-2012, 11:34 AM
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Re: Mods for the Adventurous Experimenters

jeepgcoman, how much did you end up spending on your custom headers? Also, now that you've probably learned a lot about what's available in the header/exhaust realm, do you have recommendations for us who are trying to get some more open headers?
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  #36  
Old 05-13-2012, 09:41 PM
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Re: Mods for the Adventurous Experimenters

Verminator, I ended up spending $1500 for ceramic coated headers and modifying my existing 3 in. cat. back a couple times so the MDS drone was "wife" friendly. IMO, it's perfect now. As far as headers go, I think the best game in town, for the least $$$, is probably the SRT's. Problem is, if you can't find used, new ones run ~$1200 or so, and then you'd have to mate to the "Y" pipe, and cut a little off the trans. case for clearance. You'd also have to modify the passenger side one for the EGR to operate, or spend more $$$ and get it shut off through a custom tune by the DS folks. That means you'd need to have a DS tuner too.

When I started this thread, in addition to wanting to be adventurous and experiment, I probably should have added that this mod. (advancing the stock cam) is generally for the folks that don't want to, or can't currently afford to install an aftermarket cam. Although I haven't tried advancing the stock Hemi cam, I still maintain it would make a fair amount of favorable difference in lowering the torque/power curve to an RPM range that the vehicle is most driven in. Had I not done the aftermarket cams, I would be on here telling how advancing worked on the stock cam. I have, in the past, advanced a stock cam, and it did make a considerable difference too. Before doing it, I did check the specs, and determined one tooth would be fine.....and it was. That vehicle was a '74 Chevy Nova, 250 C.I. six (cam advanced one tooth), close ratio 4-speed, headers and a 500 CFM Holley 4 bbl. carb. It had no problem beating most relatively stock small block V-8 Chevy's.

As far as one other option for the exhaust, again for those who don't want to, or can't currently afford to, I recommend trying to fit the stock LX exhaust manifolds in place of the stock WK logs. I did a thread on it, and there is a considerable difference in the two, and I, personally, think some gains can be made with this mod. Again, it is for the person who wants to do a little experimenting. Here's the thread:

A better exhaust system for the 5.7 WK??
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