22r/20r hybrid or efi swap

[4xChinook4]

I think so

Is this from experience? Have you built a hybrid before?

And I'm not totally putting off the idea of super charging. As long as I know of a way to keep it cool. And also won't  significantly shorten the life span of the hybrid due to the high compression.
Like I said before, simple, reliable, and easy to work on in the field.

[emsvitil]

No hybrid from me......


But if you're doing all this work, might as well hedge your bets........

[4xChinook4]

Very realistic reasoning. Well here's the reason. I strayed away from a bigger cam, and valves and a port and polish > they all require machining. And nothing against that. I just have a hard time trusting someone with my motor, to clearance pistons, open valve seats etc.  let alone even trying to find a reputable  shop to start with.

[4xChinook4]

So on no offense to emsvitil, but could anyone who has done this build answer.?

[helipilot77]

And No I didn't mention this build over there,. Why you ask? Should I ? 

I guess it was someone else that had made plans to build a 4wd chinook expo rig. Nice work! Can't wait to see more.

[emsvitil]

Just take the port and polish to the DIY level and don't worry about somebody else screwing it up.

At a minimum, just smooth things out,  remove casting flaws, and port match (not gasket match).

Bunch of stuff online for diy.

[79coyotefrg]

Just take the port and polish to the DIY level and don't worry about somebody else screwing it up.

At a minimum, just smooth things out,  remove casting flaws, and port match (not gasket match).

Bunch of stuff online for diy.

yes, get a dremel and safe yourself 100per hour just smooth out casting flaws and make the prts blend together smoothly.  but not too smooth.   and with the weber , cam and header and I hope 2 1/4 inch exhaust after the header. then you should be doing great
no need to get the bigger valves right away when you have a good running engine now

[4xChinook4]

Cool thanks guys. I'll  start to look this info up STAT. And yes 2 1/4" is my exhaust.

This playing it safe mentality is what you guys seem to be giving me. Would this level of experience (sounds close to none) be the amount needed to clearance  my pistons if I ever went up in cam size?

And is there a way I can bump this thread? To the right topic ?

[4xChinook4]

I guess it was someone else that had made plans to build a 4wd chinook expo rig. Nice work! Can't wait to see more.

Haha, no that was not me. But I know exactly who you are talking about. you are thinking about the white and blue striped Chinook in the pictures that won " sickest rig in the expo". Which I totally agree with haha.

By the way,  This 4x4 chinook ^ is/was my inspiration  for my build,  now. Just a little source material

Or the guy doing the T 100 swap. I'm talking to him aswell.

[4xChinook4]

So any other suggestions, as far as additions. And thinks I should consider changing in order to reach 150+ in hp?

[helipilot77]

My brother built a motor for his 82 long bed exactly like what you are talking about: hybrid, webber, header, exhaust. I drove it plenty of times. Although he didn't port it, it pulled very well. I once raced my buddy with a 77 bronco that had a moderately built 302 and I was able to pull away from him. Remember, tourque is what you should really be after.

[4xChinook4]

Haha I love these kind of stories man. And yes I agree with you idea of torque, mainly because of my camper wieght. Which as soon as I get back home I'm going  to find out just what that is. I'm really trying to get my high way driving speed and pep up.

[4xChinook4]

Never really plan on it ok exceeding 4000 rpms really striving for cruising and passing if ever needed
Hence the "daily driver" term thrown  in there. [emoji4]

[H8PVMNT]

It'll be fun to see how it comes out.  All I know is I have had a bunch of camed up, spruced up 22re trucks over the years and my bone stock 20r with just a header and open exhaust out pulls them all.  The 20r/22r setup with good deep gearing should do pretty well for you.  Plus you can fix it with a hammer, ball point pens and bailing wire in the bush. EFI is great but it will strand you for stupid reasons way before carb will based on my experiences.

[4xChinook4]

It'll be fun to see how it comes out.  All I know is I have had a bunch of camed up, spruced up 22re trucks over the years and my bone stock 20r with just a header and open exhaust out pulls them all.  The 20r/22r setup with good deep gearing should do pretty well for you.  Plus you can fix it with a hammer, ball point pens and bailing wire in the bush. EFI is great but it will strand you for stupid reasons way before carb will based on my experiences.

This reasoning right here holds the most weight on how and why I am doing what I do with this build. Simplicity &  reliability 

[helipilot77]

Plus you can fix it with a hammer, ball point pens and bailing wire in the bush. EFI is great but it will strand you for stupid reasons way before carb will based on my experiences.

For this reason I would like to find a mechanical injection pump for my deisel and ditch the ECU. It just makes trouble.

[twistedtoy92]

Also for twisted..., what was your mpg  on your original  build. Current set up with the side draft webers.

That is key in this build. Simplicity ; mileage, and power. I'll be off the beaten path quite often, looking for a build I can trust and run in roughest senarios, weather  ,  terrain, etc. mom the motor to the cabin. As soon as I figure out how to post pictures, I'll show my current layout, and maybe  a mock up of my revamped design.   . She gets me pump to think about.

Mileage was terrible, 5 speed was replaced with a 4 speed, has 4.11 gears with 24'' tires, and turned around 5200 rpm at 65-70... Averaged 10-12 with my foot in it all the time... Last pair of shoes I bought had lead in the souls... lol! Tires will be bumped up to 25/26'' if I put 3.58's in or I'll stick with 24's if I get the 3.07 v6 gears and the W50 5 speed will be swapped into place from the W40... So highway cruising will be A LOT better on MPG's!

[4xChinook4]

Mileage was terrible, 5 speed was replaced with a 4 speed, has 4.11 gears with 24'' tires, and turned around 5200 rpm at 65-70... Averaged 10-12 with my foot in it all the time... Last pair of shoes I bought had lead in the souls... lol! Tires will be bumped up to 25/26'' if I put 3.58's in or I'll stick with 24's if I get the 3.07 v6 gears and the W50 5 speed will be swapped into place from the W40... So highway cruising will be A LOT better on MPG's!

Ouch that sounds like a direction I would consider if I was in your shoes as well if that was my MPG. I think I should probably stick with my 32 / 36. And as far as I know, every mod in this build should either increase mpg or not effect it. Weber 32 /36, street performer cam, street header,  2 1/4" exhaust.  . The only thing I could think that would maybe discourage economy would be the larger bore of the 22r block,  which by the way, could I use my existing timing chain cover?

[twistedtoy92]

Thats why I'm opting for EFI over carb, I can detune it and lower the boost for daily driving mileage, then crank up the boost and up the timing if I'm feeling like terrorizing the street or the strip.
Yes timing cover should fit, you will have to measure it though to make sure it doesnt need to be milled or has been milled. Should be dead level with the top of the block.

[4xChinook4]

Ok perfect just making sure the bolt holes will line up correctly

[4xChinook4]

So if I could get ~150 hp with the motor stand alone, then if down the road I feel the need for a little bit more power,  then will come the valves port an polish  (as long as i can find  a machine shop to do it. ) and then  maybe a larger cam. And then a bore  to the block.  And then maybe a supercharger.  Would any  of this negativity effect fuel economy?

[79coyotefrg]

Ouch that sounds like a direction I would consider if I was in your shoes as well if that was my MPG. I think I should probably stick with my 32 / 36. And as far as I know, every mod in this build should either increase mpg or not effect it. Weber 32 /36, street performer cam, street header,  2 1/4" exhaust.  . The only thing I could think that would maybe discourage economy would be the larger bore of the 22r block,  which by the way, could I use my existing timing chain cover?

cover, chain and gears, oil pump, everything. the only difference is the bore

also, these engines need no help in torque. they DO need help in top end,. 

[4xChinook4]

Look out for the thread of me actually starting the build, and engine mods.

[79coyotefrg]

Never really plan on it ok exceeding 4000 rpms really striving for cruising and passing if ever needed
Hence the "daily driver" term thrown  in there. [emoji4]

I take mine to 5000plus going to the grocery store
http://www.youtube.com/watch?v=9VX1AFhpOck

[4xChinook4]

Haha I've seen this video plenty of times afore Glen . Privilege  to have it on my thread. [emoji106] and I will say I've done the same with my chinook. I just don't want to HAVE to do this. in order to keep up with the rest of the traffic coming off the stop light. lol


Mashing my foot onto that 36 barrel, or were I always have to feather the pedal around that area.

Haha I WANT TO KEEP MY 36 SECONDARY!  NOT MY PRIMARY! [emoji13]

[79coyotefrg]

I dont drive like that all the time but its nice to have.  I have passed people at times and wondered what a shot of no2 would do to my evil grin

[4xChinook4]

Do you think fabbing up efi to my hybrid would be worth the hassle, how far would it detract from my idea of a simple/reliable/easy to work on motor? Would the economy be all that worth it?

[79coyotefrg]

Do you think fabbing up efi to my hybrid would be worth the hassle, how far would it detract from my idea of a simple/reliable/easy to work on motor? Would the economy be all that worth it?

  no

[twistedtoy92]

For your wants, leave the weber on there.

[4xChinook4]

Right on guys thanks for keeping my confidence up, lol there's a lot of unknowns/ what if's ,with the motor side of this build, so just trying to get my mind well rounded about all my options.

which octane did you run  with your hybrid?