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Unread 12-17-2009, 05:09 PM   #1
swatson454
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Weber 38 Outlaw

Well I just stepped on Santas toes and ordered myself a Weber 38 Outlaw conversion kit. It's a little pricey for a carb but will hopefully let me finally lay my poor old BBD to rest.

I'll chime back in after the install and let you guys know how it performs. Any thoughts are always appreciated, of course.

Shawn

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Unread 12-17-2009, 06:01 PM   #2
ARJeepNerd
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Just be sure and be real meticulous about sealing up the adapter plates, they are bad vacuum leakers. And if it doesn't run right at first, don't freak out- jet changes aren't that hard. Get a Holley Fuel Pressure Regulator, and good luck!
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Unread 12-17-2009, 07:02 PM   #3
CJ Chet
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I have one and I love it! Make sure you get that Holley regulator, nothing else! Those adapter plates DO leak, they are lousy castings. When I installed my SECOND set, here's what I did. Ran them across my beltsander to smooth them out and make a nice flat surface, then put a bead of silicone (Permatex) between each one. Haven't had a leak since (3 years now).
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Unread 12-17-2009, 07:20 PM   #4
swatson454
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Thanks for the heads-up on the adapter plates guys. As for the regulator, I mentioned it when I placed my order and he said as long as my stock pump doesn't make more than 5 psi I'll be ok. I took his word for it as he could have easily sold me another $35 part and didn't. I'm aware of the issues though and will check the pressure before install. I should probably just buy a regulator huh...

Thanks
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Unread 12-17-2009, 07:41 PM   #5
CJ Chet
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Weber says more than 3.5 PSI can damage the carb! Get the reg!
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Beer is the answer - it doesn't matter what the question is!

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'04 AEV RUBICON.
'00 TJ Sahara.
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Unread 12-17-2009, 07:56 PM   #6
swatson454
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Probably a good idea. I'm on it
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Unread 12-17-2009, 07:58 PM   #7
green89yj
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Might as well just get the reg. What's 35 more now anyway? haha.
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Unread 12-17-2009, 08:28 PM   #8
swatson454
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Just ordered a regulator, gauge and fitting. What's another 55 bucks... Jesus
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Unread 12-17-2009, 08:38 PM   #9
CJ Chet
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It's only money. You'd probably spend it on something stupid anyway, like groceries or something!
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Beer is the answer - it doesn't matter what the question is!

'86 CJ7, 265 CI, DUI, TF999, Borla, Weber, 4" BDS Lift.
'04 AEV RUBICON.
'00 TJ Sahara.
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Unread 12-17-2009, 08:59 PM   #10
ARJeepNerd
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Every last mother******* pocket

Regulator is a necessity, my stock pump made around 5 psi but turns out the old mechanicals aren't too consistent. Caused all kinds of issues running rich, especially offroad. The Holley FPR is definitely worth it, will save you a world of headache.

Other suggestion: A Weber tuning manual if you want it to run perfect. It will probably run way better than the BBD with stock tuned settings, but if you spent some time tinkering you will be outright amazed.
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Unread 12-17-2009, 09:05 PM   #11
mcmud
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Congrats, I'm sure you will get it tuned to perfection.
I am just about convinced to do the same, buy a DGS 38 that is. In conversation with a bud at Redline World Pac yesterday I almost made the commitment. Just with several DGV 32/36's about I got a case of cold feet. Will be considering the carb only as I have all the other necessity's to mount it as a manual choke. No FPR though. I have never found a need since running Webers for over thirteen years on many applications. I do set the float though and use the fuel return line though.
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Unread 12-18-2009, 08:20 AM   #12
CJ Chet
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If that 38 is the same as the one I have then it has it's own integral return port. A very nice feature!

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'04 AEV RUBICON.
'00 TJ Sahara.
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Unread 12-18-2009, 09:22 AM   #13
swatson454
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Not sure. I haven't even seen a Weber since high school when I had a pair of 40 IDFs on my Volkswagen Baja lol.

Shawn
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Unread 12-18-2009, 12:09 PM   #14
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After a great heads-up from MCMUD, I called Tom at Weber and have some new info I should pass along. The needle/seat assembly shipped in the Weber carbs is not exactly a high quality unit and will fail when fed more than 3 psi.

The alternative is to purchase an upgraded needle/seat which was $14 bucks, which will handle anything the stock pump will deliver, spend $30 for a regulator or wait for the stock needle/seat to fail and use the better quality one found in the rebuild kit. If you're like me, it's $68 bucks for a regulator, gauge and fitting for gauge install and that's only because I'm too poor at the moment to buy another Barry Grant regulator.

Tom was very cool and said to call him when I get the new carb and he will help me adjust the float to the new needle/seat assembly. Good stuff.

Shawn
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Unread 12-24-2009, 09:12 AM   #15
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Just got the carb installed lastnight and my first impression was WOW! Throttle responce is great, smooth and powerful transition through the circuits and really strong top end. 3500 rpm came very easily and it continued to have strong power into third gear. I thought it was chugging a little just off idle at 600 rpm until I realized I was still in 2nd gear. That corner always required a downshift into 1st with the BBD so that's a good thing. Definitely not over-carburated.

I still have some adjusting to do, though. I thought I had the float adjustment procedure correct in my mind from a conversation with Redline but, after discussing this with MCMUD, (thanks again!) I realized that I didn't do it correctly. Not that Redline told me something different, I just didn't comprehend what he was telling me and I hadn't seen the float assembly yet so I didn't have a visual reference to add to the conversation. It's a touch lean on the top end which adds further evidence that I didn't do it right. Hoping to address that here shortly.

The engine was happiest at 2 turns out on the mixture screws and is pretty stinky. It's visually clean and crisp but burns your eyes. I know that's a bit too far out on the screws so I'm going to address that as well. Idle speed screw was just a smidge under 1/2 turn in from contact.

So other than some minor tuning, this carb seems to have great potential and is making me second guess the 350 swap I was gathering info about on another thread.

I'll pop back in soon with a progress report. As always, any comments or advise is always appreciated.

Shawn

Last edited by swatson454; 12-24-2009 at 09:50 AM..
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