Lost top end speed - Page 6 - JeepForum.com
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post #76 of 84 Old 04-27-2013, 11:22 AM Thread Starter
firemanjim7
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Ok guys I will keep working on it with y'all's recommendations. Probably wot be this weekend anymore. My daughter is getting confirmed tomorrow and next weekend is her party so I'll try and work on it during the week. Baseball is over now so I have more time. I'll keep y'all updated.

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post #77 of 84 Old 04-27-2013, 11:48 AM Thread Starter
firemanjim7
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Quote:
Originally Posted by swatson454
I'd install the heaviest springs, set the initial at 10 and try Vizard's procedure I posted earlier. I'll be shocked if you can start the curve at 14.

Good luck!

Shawn

Edit: I may know a guy who's got a D.U.I. curve sitting in a drawer that "he" will send you but I'd like to see you exhaust your tuning efforts on the CRT first. It's just good information for the whole JF crew
Hey Shawn you would start with the heaviest springs even if they were heavier than what came stock in the CRT? I also failed to mention that curve example poorly illustrated was with one stock spring and a lighter spring from the kit. I had no ping on any part of acceleration or even lug.

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post #78 of 84 Old 04-27-2013, 12:00 PM
swatson454
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I was under the impression you were pinging at the top end when you went up to 12*. Did you correct that already?


Shawn

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post #79 of 84 Old 04-27-2013, 12:12 PM Thread Starter
firemanjim7
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Quote:
Originally Posted by swatson454
I was under the impression you were pinging at the top end when you went up to 12*. Did you correct that already?

Shawn
Yeah I got that out of it with a minor adjustment to the vac advance and the ping was under mid range load not top end.

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post #80 of 84 Old 04-27-2013, 12:24 PM
swatson454
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Ahhh, that's right. My bad.

Well, it's up to you. That's a really good method if you just wanted to start from square one. I'm still with Matt in thinking that they threw you an empty bone. You never know...


Shawn

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post #81 of 84 Old 04-27-2013, 12:30 PM Thread Starter
firemanjim7
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Quote:
Originally Posted by swatson454
Ahhh, that's right. My bad.

Well, it's up to you. That's a really good method if you just wanted to start from square one. I'm still with Matt in thinking that they threw you an empty bone. You never know...

Shawn
Well now I don't really know what to do. My curve is up around 36* now. Yeah alittle early at 2700rpm but will that make a difference. One time i read it needs to be alittle quicker in and now alittle slower in. I'm about to say f it and hold it too the floor till it goes BOOM!

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post #82 of 84 Old 04-27-2013, 12:45 PM
swatson454
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I say, if you got your performance back and it's definitely not knocking, close the hood and enjoy a job well done.


Shawn

Live in a way that those who know you but don't know God will come to know God because they know you.
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post #83 of 84 Old 04-27-2013, 12:50 PM
Matt1981CJ7
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I'm with Shawn, only I'd back your initial down to 10-12, just to be on the safe side.

Matt
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post #84 of 84 Old 04-27-2013, 01:04 PM Thread Starter
firemanjim7
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Ok I'll try it for awhile guys. My to speed was only 75mph with these settings but maybe asking too much out of a 258. I could have sworn it had better top speed before the CRT though. I wish I could drop my Cummings in it. Boy wouldn't that be fun. Thanks for all your help Matt and Shawn y'all have talked me off the ledge yet another time.

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