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Unread 02-15-2006, 05:03 PM   #91
rjcj-8
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I have not seen this mentioned
At what temp does the TBI prefer to run at?
Stock for the 258 is 195*, I'm replacing my t stat with a high flow one and was wondering if i should go down to a 180/185?

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Unread 02-15-2006, 05:54 PM   #92
Tshark299
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I've been following this thread from the beginning... I used to think life didn't get any better than the Weber carb without spending alot of money but now I'm really looking foward to trying this in the spring or summer!

I feel like this has been answered at least once already but just to clarify... Right now I'm running TFI with a 4-pin HEI module on my 258. I defintely want computer controlled ignition when I do the TBI (benefits seem to outweigh the extra work involved). Up until a few posts ago I figured I'd have to go full-blown HEI for that... but now it sounds like the only major modification I'd have to do is replace the 4-pin module with an 8-pin and disable the distributer's mechanical advances. Is this correct?
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Unread 02-15-2006, 08:22 PM   #93
jlynch
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That's kinda what I gathered from whats been said but I've never done it. I am working on this project now but I haven't got to the dist. part yet. I have a 304 and was going to convert to HEI but now I'm not sure which route to take an HEI conversion is much easier with the 6 cyl. motors than the v8.
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Unread 02-15-2006, 09:08 PM   #94
rjcj-8
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Had the weber prior going tbi, this beats it hands down.

Tshark299 you are correct. I'm running the tfi setup with a locked down dizzy.
The mod to lock down the advance only takes about 30 min to do. The computer timing is worth it i think.
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Unread 02-16-2006, 12:01 AM   #95
Bill USN-1
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I know some guys are writing up the conversion for you but in the mean time you really need to check out the info I have already posted in the FI forum at the binder bulletin site to do the TBI conversion.
There is no difference in the basic requirements no matter what motor it goes on.
Just go to the FAQ's and start from the top.
99% of what you need is there.

Also keep in mind that there are lots of options.
No one way is the right way to do it.

No one distr or ECM is the right one to use.
They are all personal preference and what's avail!!!

Would it help you to believe what I say if I changed my signature to a JEEP?

Maybe I should re-login as "rockcrusherCJ", ok maybe I shouldn't, that one may be used already!!
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Bill USN-1
[B]75 scout XLC 345/727/JPD300/3.73's/33's/4wdisc/hydroboost/EFI[/B] ><>< 76 scout 345/727/D300/354's/37's/EFI/SOA
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Unread 02-16-2006, 12:02 AM   #96
Bill USN-1
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Quote:
Originally Posted by rjcj-8
I have not seen this mentioned
At what temp does the TBI prefer to run at?
Stock for the 258 is 195*, I'm replacing my t stat with a high flow one and was wondering if i should go down to a 180/185?

You need min 180* You can go lower but the ECM will think your motor is cold and will add more fuel.(simplified)
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Bill USN-1
[B]75 scout XLC 345/727/JPD300/3.73's/33's/4wdisc/hydroboost/EFI[/B] ><>< 76 scout 345/727/D300/354's/37's/EFI/SOA
FI Moderator at [URL="http://www.binderplanet.com"]Binder Planet[/URL]
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Unread 02-16-2006, 12:38 AM   #97
Bill USN-1
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Quote:
Originally Posted by Tshark299
I've been following this thread from the beginning... I used to think life didn't get any better than the Weber carb without spending alot of money but now I'm really looking foward to trying this in the spring or summer!

I feel like this has been answered at least once already but just to clarify... Right now I'm running TFI with a 4-pin HEI module on my 258. I defintely want computer controlled ignition when I do the TBI (benefits seem to outweigh the extra work involved). Up until a few posts ago I figured I'd have to go full-blown HEI for that... but now it sounds like the only major modification I'd have to do is replace the 4-pin module with an 8-pin and disable the distributer's mechanical advances. Is this correct?

Quote:
Your doing fine, just keep in mind that it's not "electronic" distr, it's a distr with a magnetic pick up. That's why the HEI, large or small cap distr will work or the Ford DS distr.

The unilites, if they have the light...won't work even tho they are electronic.
Also there is a points replacement module made by Pertronix. It will not work either. Hall effect pick ups are not the same as magnetic pick ups and will not work.

The MSD Pro billets do use the same pick up as the DS distr so they will work.

Keep in mind that the mech advance must be locked out and you do not hook up a vacuum hose!!!


For another viable option you should really take a look at this thread!!!
Jamar performs the conversions for us and could probably do the same for you guys!!

May be worth looking into!!!

GM/IH distr merger!!!
So the short answer is yes if your current distr was a DS then it will work fine!
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Bill USN-1
[B]75 scout XLC 345/727/JPD300/3.73's/33's/4wdisc/hydroboost/EFI[/B] ><>< 76 scout 345/727/D300/354's/37's/EFI/SOA
FI Moderator at [URL="http://www.binderplanet.com"]Binder Planet[/URL]
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Unread 02-16-2006, 05:20 AM   #98
CJ51973
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Don't change your forum name Bill. I keeps you clear of all us "Heep" owners. You're a rose among thorns.

Bill is correct about his information on the Binder Board. That is how I got mine to work. A lot of this same information in some variation is what the "write up" is based on.
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Unread 02-16-2006, 05:59 PM   #99
jlynch
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Hey Bill,
Do you have Jamar's phone number? I'd like to see if he can do the hei dist conversion for a jeep v8.
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Unread 02-17-2006, 12:11 AM   #100
Bill USN-1
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Quote:
Originally Posted by jlynch
Hey Bill,
Do you have Jamar's phone number? I'd like to see if he can do the hei dist conversion for a jeep v8.
Don't have a phone but i will send you a PM.

EDIT:

Jamar Machine
7087 N. 4th Street
Dalton Gardens Idaho 83815
208 772-1516
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Bill USN-1
[B]75 scout XLC 345/727/JPD300/3.73's/33's/4wdisc/hydroboost/EFI[/B] ><>< 76 scout 345/727/D300/354's/37's/EFI/SOA
FI Moderator at [URL="http://www.binderplanet.com"]Binder Planet[/URL]

Last edited by Bill USN-1; 02-18-2006 at 01:08 AM..
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Unread 02-19-2006, 10:22 AM   #101
jlynch
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Thanks for the info Bill. Will this setup work ok if you don't use the knock and vss sensors or do you suggest that they be used?
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Unread 02-19-2006, 10:51 AM   #102
CJ51973
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Mine work well without these. If I check my ECU for codes the VSS always comes up. It doesn't seem to be affecting it otherwise.
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Unread 02-19-2006, 11:34 AM   #103
Bill USN-1
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Quote:
Originally Posted by jlynch
Thanks for the info Bill. Will this setup work ok if you don't use the knock and vss sensors or do you suggest that they be used?

If you use the bypass I list in my wiring, you can do without the Knock and ESC.
If your motor pings just retard the timing the same as you do now!

For the VSS...it's 50/50. I have ran them both ways. For my DD scout that I offroad on the weekends, I use the VSS. It will help a little with mileage and for those with an open exhaust it keeps it from popping on decel.
It is also good for the input to the cruise control!

For my old trail scout...don't use it. Don't need it.
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FI Moderator at [URL="http://www.binderplanet.com"]Binder Planet[/URL]
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Unread 02-19-2006, 01:44 PM   #104
jlynch
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Cool!! I think I won't use them this is a trail jeep only.
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Unread 02-19-2006, 10:04 PM   #105
Blthomas
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How's the writeup progressing on the Busted site?

I'm one of the guys who will more than likely need the Barnied version you guys had talked about.

I been reading Bill's site, lots of info there, almost overwhelming to be honest.

Hoping to get to the yard tomorrow, if they're open for Prez. Day.

Thanks,
Blair
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