Re: Polar Bear Suburban
One day soon planning an 8.1 I'm sure I'll ask for some guidance.
|
Re: Polar Bear Suburban
Glad to hear ya got her dialed in! That torque curve is a 'beaut.
|
Re: Polar Bear Suburban
Quote:
|
Re: Polar Bear Suburban
Quote:
|
Re: Polar Bear Suburban
Got a little annoyance thing address on the Burb last night. Since the NV4500 swap the clutch “feeling” has been a moving target. I find myself adjusting the clutch every few weeks and was getting pretty tired of it. Normally there aren’t any adjustments with a hydraulic clutch but with the Advance Adapters NV4500 bell/slave bracket there is. Anyway, I treated it to a new slave, M/C and hose as well has gone to much larger hydraulic reservoir. What a difference this all made! I’ll be able to put more miles on it later this week but it already feels 100% better. See if I can do some speed shifting now! :lol:
Tiny OEM reservoir. I just never felt these little reservoirs were up to the job https://c1.staticflickr.com/1/314/17...0c20d37b_c.jpg Tilton reservoir mounted to a bracket I made that bolts to the bracket master cylinder and hydroboost hose bracket. I actually used a TBI 7.4L MAP bracket for this. Hey, it fit almost perfect! Now I want to do the same to the K10. https://c1.staticflickr.com/9/8847/1...29670e7f_c.jpg https://c2.staticflickr.com/8/7766/1...8209fee1_c.jpg |
Re: Polar Bear Suburban
Larry I hate to bug you with too many questions, but youre the only guy I know that will probably have the answers. I have a 2002 8.1 that is going in my 88 R30. I do have to pass emission here in Boulder County. I talked to Air Care COlorado about the swap and all they could tell me is I have to have all the emissions equipment the vehicle came with for that year.The vehicle would get a waiver and have to pass for that years standards. Being that I am going to have a stock computer to do emissions with and another with the howell tune, it should pass with flying colors. This engine should have an EGR on it, but the block off plate on it sure looks like a factory unit to me. My question is, how would anyone tell if it was a 2006 or a 2002? I will install cats on it, but not sure if I should do EGR even though it has a factory looking block off plate.
|
Re: Polar Bear Suburban
Quote:
Here is an excerpt from the GM Powertrain 2004 Model Year L18 Summary regarding the removal of the EGR: EXHAUST GAS RECIRCULATION (EGR) ELIMINATED The EGR control valve and plumbing have been removed from all Vortec 8100s. The EGR system was used to recycle some exhaust gas back into the intake stream to cool combustion and reduce oxides of nitrogen (NOx) emissions. Data from development and durability test vehicles indicates that software refinements in the P59 PCM, and the engine’s overall efficiency, allow the Vortec 8100 to meet all 2004 North American exhaust emissions standards without EGR. Removing EGR reduces cost, complexity and potential warranty claims, improving both assembly efficiency and reliability. The EGR block off plate is GM part number 12559976 while the gasket is 12580673. Just remove the EGR and add the plate and gasket. The studs and nuts can be retained. Not sure if you ran across THIS thread but it is a great resource on all things 8.1L related. There is also a very good group on Facebook dedicated to 8.1L swappers. The page is called “8.1L Info Swap Classifieds”. Tell Ed, Larry sent you. Good luck with your project. |
Quote:
Posted via Mobile Device |
Re: Polar Bear Suburban
Quote:
I personally wouldn’t worry about it as you would need the EGR exhaust manifold which won’t fit your square body frame anyway. |
Re: Polar Bear Suburban
My valve covers are black. I am hoping the main air car facility employs people of the same mind set as the one here in longmont. They look for the basics and throw it on the dyno. Just finished up our 86 K10 after a fire rebuild and I just ran some vacuum lines around the intake and not one of them were connected to anything. Hoping thats the outcome when this truck is running. Thanks for the help Larry.
|
Re: Polar Bear Suburban
Larry do you have to run a spacer between the throttle body and manifold when you use the L29 throttle body?
|
Re: Polar Bear Suburban
Quote:
|
Quote:
Posted via Mobile Device |
Re: Polar Bear Suburban
Sounds good!
|
Re: Polar Bear Suburban
Larry can you tell me if these are the correct part numbers for mounting bolts for the G-van/workhorse brackets? I have searched and I can't seem to find the length of these part numbers. I am shocked at the difference in size compared to the truck brackets.
Here is what I came up with 5X 11516367 4X 11516360 2X 11517115 (bolts for alternator) Blake just sent me his parts list and he has the same numbers. Just double checking now. |
Re: Polar Bear Suburban
Quote:
|
Re: Polar Bear Suburban
Thanks Larry. I went ahead and ordered them today. Those part numbers also matched what Blake used so I figured they must be right.
|
Re: Polar Bear Suburban
Quote:
How is it that you were adjusting your hydraulic clutch? I've never known one to be adjustable. I'm curious as I'm not 100% happy with mine. |
Re: Polar Bear Suburban
Quote:
|
Re: Polar Bear Suburban
Finally got around to pumping up the A/C pumped this afternoon. She works great and that Delphi HT6 compressor is so quiet you don’t even hear it run. It’s in the upper 90’s here today and she was blowing 54 degrees out of the vents cruising down the highway. 54 really feels cold when it is almost a 100 ambient. It will freeze you out after a while. Next 2 projects is to get it back to the tuner so they can straighten up their tune to take out the parking lot idling hop and the piss poor cold start open loop operation. After that it goes back to the exhaust shop to have some rework done on the exhaust as I cannot stand the way it sounds. Going to have a dual inlet dual outlet Magnaflow x-muffler installed and move to true dual exhaust instead of the huge restriction it has now where it is squeezed down to a single pipe for 3 feet.
https://c1.staticflickr.com/1/449/18...bf808ec8_c.jpg https://c1.staticflickr.com/1/412/19...261bdcd1_c.jpg |
Re: Polar Bear Suburban
I'd love to see some pics of the exhaust before and after Larry. I'm going through major anxiety trying to figure out a routing since the spring swap and install of the Blazer tank in the back. Alot of guys around here are running turndowns. I can't bring myself to do it though. I liked them turned out under the rear of the rear fender. Can't wait to see what you do there.
|
Re: Polar Bear Suburban
Quote:
https://farm9.staticflickr.com/8702/...e0052399_c.jpg The tail pipes will remain in the same location. I like the stock behind the wheel exit look. This is about the best picture of the tailpipes. It is basically the same as my K10 as far as exhaust exit. Turn downs are cool on a street truck but not for a real world 4x4. https://c1.staticflickr.com/3/2831/1...095b5454_c.jpg |
Re: Polar Bear Suburban
Thats exactly how I'd like mine to exit. I just wonder about getting around the new springs now. The darn things take up nearly the whole length of the frame after the bed. I'm sure my exhaust guy will be able to figure something out. That truck of yours sure is clean though. Thanks for the exhaust pics!
|
Re: Polar Bear Suburban
Quote:
https://c1.staticflickr.com/9/8041/8...d1c96584_c.jpg The exhaust on the K10 is routed behind the shackles as well for flex clearance https://c2.staticflickr.com/4/3895/1...df74706f_c.jpg Oh, I forgot to post up the official decal to consummate the 8.1L install:lol: https://c1.staticflickr.com/1/559/18...7f39e341_c.jpg https://c1.staticflickr.com/1/523/19...c69615a4_c.jpg And a few shameless glamour shots https://c1.staticflickr.com/1/467/19...c9d1e319_c.jpg https://c1.staticflickr.com/1/432/19...38ca6f23_c.jpg |
Re: Polar Bear Suburban
Did you ever get the oily brakes ok K10 dilemma sorted out? If you did I missed it
Posted via Mobile Device |
All times are GMT -4. The time now is 12:59 AM. |
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com