« previous next »
Pages: 1 ... 10 11 [12] 13 14 ... 29   Go Down

Author Topic: rescuing an old friend  (Read 68876 times)

rejeep

  • M4wd Vendor
  • Hero Member
  • *****
  • Posts: 6188
  • Karma: +1/-0
Re: How to throw Money at a YJ...
« Reply #165 on: June 15, 2012, 09:10:58 AM »
I dont even mind buying a cable...
would be sweet to be able to tune this thing...

Report to moderator   Logged
I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

M4wdFab

  • Administrator
  • Hero Member
  • *****
  • Posts: 22531
  • Karma: +11/-22
Re: How to throw Money at a YJ...
« Reply #166 on: June 15, 2012, 10:29:50 AM »
do you have a knock sensor and where is it mounted?
Report to moderator   Logged

rejeep

  • M4wd Vendor
  • Hero Member
  • *****
  • Posts: 6188
  • Karma: +1/-0
Re: How to throw Money at a YJ...
« Reply #167 on: June 15, 2012, 11:14:31 AM »
I don’t think there is a knock sensor in the Howell system... I might be wrong

I just talked to them and they thing they can bump my air to fuel ratio and get some good response..
I talked to him for about 20 min with all my data from this morning’s drive..  just need to pull the PROM ID number for him so he has something as a baseline..
Report to moderator   Logged
I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

rejeep

  • M4wd Vendor
  • Hero Member
  • *****
  • Posts: 6188
  • Karma: +1/-0
Re: How to throw Money at a YJ...
« Reply #168 on: June 15, 2012, 01:26:09 PM »
well jeep guru told me 258 stock is 9.2 : 1 compression ration...
I am prob pushing 10 : 1 if not more...

so fuel delivery might not be a 100% fix...

thank god i know where a virgin head is...
Report to moderator   Logged
I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

M4wdFab

  • Administrator
  • Hero Member
  • *****
  • Posts: 22531
  • Karma: +11/-22
Re: How to throw Money at a YJ...
« Reply #169 on: June 15, 2012, 01:29:57 PM »
time for an LS motor yet?
Report to moderator   Logged

mr.mindless

  • Administrator
  • Hero Member
  • *****
  • Posts: 15406
  • Karma: +2/-16
Re: How to throw Money at a YJ...
« Reply #170 on: June 15, 2012, 01:34:23 PM »
That car's no virgin, she's been around the block!

Next week I hope. I should get a valve cover gasket for you too. Saint Michael has a nice smoky show of oil burning on the manifold when he idles.
Report to moderator   Logged
Quote from: etk300ex
oh lord!

rejeep

  • M4wd Vendor
  • Hero Member
  • *****
  • Posts: 6188
  • Karma: +1/-0
Re: How to throw Money at a YJ...
« Reply #171 on: June 19, 2012, 05:28:55 PM »
New chip being burned and mailed out this week...

Red anodized aluminum throttle body spacer installed.....
I didn't mount the supplied sticker so I guess that makes it a sleeper?
Report to moderator   Logged
I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

rejeep

  • M4wd Vendor
  • Hero Member
  • *****
  • Posts: 6188
  • Karma: +1/-0
Re: How to throw Money at a YJ...
« Reply #172 on: June 30, 2012, 05:17:47 PM »
new chip installed and running a bit better in all gears..
idle has seemed to smooth out at cold start and WAY WAY more power in 1-4th over 3K RPM..
just from that it seems that it WAS running lean... my temps are a little lower than they were previously..

almsot done with my tank of 100... will fill up with 93 and be able to test my detonation issue next week I hope..


Rear seat installed as well.. fits nicely in the stock mounting locations...
have to re check my storage boxes and possibly buy new ones if they dont fit...





Report to moderator   Logged
I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

rejeep

  • M4wd Vendor
  • Hero Member
  • *****
  • Posts: 6188
  • Karma: +1/-0
Re: How to throw Money at a YJ...
« Reply #173 on: July 13, 2012, 07:53:54 PM »
little update on the engine tuning...

Ran a tank of 93 octane (well 16 gallons of 93 and the remainder of the 100)
No ping
Today 50 miles into my full tank of 93 I had some ping issues once the temp got to ~205 deg.. It was also HOT as anything here today and I was purposly trying to lug the engine to see if it would ping..

I threw a bottle of octane boost in the tank and will see where that lands me..

I have two avenues to explore..

1. get it on a dyno and have a local shop sit with a laptop and really tune the engine.. the ping might be entirely related to a fuel delivery issue or lack there of..
2. with the EPROM I have in there now I can prob get away with swapping a virgin head on the motor and reduce the compression a bit.. (I would gain .015" back)

Knowing that I can run a normal day on pump gas (even with octane boost) is great.. I can always fuel up with 100 before a hot week or Aug wheeling trip (CoolRide) Its not my DD by any means and it really only sees local driving.

Funny thing is I have heard form several people locally that their normal DD cars are pinging when filled up with 87, but stopping with 89..
I think there might be a bad supply of fuel currently.....
Report to moderator   Logged
I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

Wingman

  • Free Loader
  • Hero Member
  • ***
  • Posts: 4598
  • Karma: +2/-1
Re: How to throw Money at a YJ...
« Reply #174 on: July 13, 2012, 08:03:09 PM »
maybe the 10-15% ethanol?
Report to moderator   Logged
Retired

mr.mindless

  • Administrator
  • Hero Member
  • *****
  • Posts: 15406
  • Karma: +2/-16
How to throw Money at a YJ...
« Reply #175 on: July 13, 2012, 08:07:37 PM »
Stock tune, Dakota would always ping on 87 except from Mobile. 89 needed from other vendors. Similar thing?

Could take a degree or two out of the distrib too?
Report to moderator   Logged
Quote from: etk300ex
oh lord!

rejeep

  • M4wd Vendor
  • Hero Member
  • *****
  • Posts: 6188
  • Karma: +1/-0
Re: How to throw Money at a YJ...
« Reply #176 on: July 13, 2012, 08:15:45 PM »
I want to get it on a tuner and see...
tired of trial and error.. if its tunable let somebody tell me..
if its not, off with its head this fall..
Report to moderator   Logged
I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

M4wdFab

  • Administrator
  • Hero Member
  • *****
  • Posts: 22531
  • Karma: +11/-22
Re: How to throw Money at a YJ...
« Reply #177 on: July 13, 2012, 09:24:34 PM »
can you list specs of the system again, with symptoms, complaints, and wishes, i will pass on and get a quote for some outsource work though M4  i have a guy that is the TBI man
Report to moderator   Logged

rejeep

  • M4wd Vendor
  • Hero Member
  • *****
  • Posts: 6188
  • Karma: +1/-0
Re: How to throw Money at a YJ...
« Reply #178 on: July 13, 2012, 11:30:23 PM »
Jeep 258
Isky 260 super cam
.015" taken off the block
.015" taken off the head

Howell TBI system (gm obd1)

Engine pings on anything less than 100 octane

New EPROM was burned increasing air fuel ratio, ping was reduced, but not eliminated.

I want to have the motor tuned and see if the fuel delivery system is causing the ping ( lean condition) or its too high a compression engine..
Either way the tuning will benefit the situation if I end up swapping heads.  Gaining the .015 back should drop the compression..
Report to moderator   Logged
I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o

rejeep

  • M4wd Vendor
  • Hero Member
  • *****
  • Posts: 6188
  • Karma: +1/-0
Re: How to throw Money at a YJ...
« Reply #179 on: August 13, 2012, 09:03:14 PM »
for the sake of argument...

what are the thoughts here on an Atlas Tcase?

looking into different creepy options...
Report to moderator   Logged
I never wanted a red car.. always thought they were tacky and common...
I now have 4 very not common cars and they are all red.. :o
Pages: 1 ... 10 11 [12] 13 14 ... 29   Go Up
« previous next »