Topic: 22r/20r hybrid or efi swap

[kneedownnate]

There is no way anybody else would know what cam somebody could have put in there, but just because it was an rv doesn't mean it had an rv cam.  Just stick with the lce cam

[twistedtoy92]

x2^^^

[4xChinook4 [OP]]

Nice guys, that's what I was thinking, hence why I already bought the LC cam, I tend to get a lot of things into question, and start wondering about things.. but glad to hear I made a good call.

[4xChinook4 [OP]]

So what's this whole 5.29's talk? Won't that detract from highway use?

[kneedownnate]

Please don't take this the whole way, but from reading a lot of your posts, I think you need to take a week and go through a ton of threads and posts on here.  Your questions will pretty much all be answered that way, and you will likely retain the info better for having dug it up vs having people just tell you.  There's almost nothing you could ask that hasn't been covered on her in great detail in the many years this site has been up.

On top of that, you'll start to see lots of build ideas and details you probably would have never considered and may be able to put into use.

[4xChinook4 [OP]]

Ya I can't count how many days maybe weeks spent reading on forums, mostly marlin, doing research.

But your right a little more wouldn't hurt. It just through me off when Glen suggested going deeper into the gearing, I just figured 4.88s was already deep for 32's   (found from  other threads aswell) the only reason I ask these questions over is because of one major difference. I have a camper on back lol!! Most these question and answers all over marlin, pirate, etc. Are guys who still have there bed attached. Just trying to get some reliable answers from guys who I trust and view as "legends of the Marlin forum",(Glen knows all about what I'm say'n ) that's you included kneedownnate. But some answers  for more my vehicle specific . A 4x4  chinook 

[79coyotefrg]

i guess that will be okay for now but you want to keep your cruising rpm up about 2900-3300 with that .440 cam

[79coyotefrg]

heres the thing about deeper gears,  camper = heavy and a friggin sail can your rig right now hold 70 mph on the interstate??

[4xChinook4 [OP]]

In 5th and on flat. With the pedal between 1/2 &2/3 of movement . Sometimes  getting into the 36 carb.

[4xChinook4 [OP]]

This is with the 29's by the way . Yet to get the 32's   

[4xChinook4 [OP]]

heres the thing about deeper gears,  camper = heavy and a friggin sail can your rig right now hold 70 mph on the interstate??

Ya I get that, I just thought 4.88s  were deep enough  I guess.

[4xChinook4 [OP]]

i guess that will be okay for now but you want to keep your cruising rpm up about 2900-3300 with that .440 cam

And that's about my cruising  rpms now at about ~58mph.


On a flat that is,

[4xChinook4 [OP]]

OK Glen, knee down nate,  y you both right,  nate your right there is always more answers with more searching.  And Glen your right I don't need a SC. That's probably  the 19 year, one track mind in me coming out.    I appreciate  the patience, you guys have been doing this for years, and know what your talking bout 👍. So tell me, what's my next move, since with a SC I'll be in another $3000, and still have a camper powered under 200 hp lol. 

So what would be the wisest coarse? ☺

[H8PVMNT]

I ran 33s ad 32s on highway with 5.29s for a few years.  Really drivable and good mileage too. I usually broke 20 mpg after taking the speedo difference into consideration. You could load the thing up like crazy and it pulled passes in 4th gear no problem.  You could push headwinds in 5th most of the time.

I think your 4.88/32" combo should produce similar results.

[79coyotefrg]

In 5th and on flat. With the pedal between 1/2 &2/3 of movement . Sometimes  getting into the 36 carb.

with 4.88's??   dang  thats not good.  yep 5.29 time and sell the 4.88's

[4xChinook4 [OP]]

OK not sure if I just got to different answers lol, but maybe so, but keep in mind this was just with the weber and stock 20r , I never got a chance to highway it with the header, 22r bottom end and no cam. Soooo... maybe? The 4.88s will work after this all right? Plus wouldn't 5.29s send me downward in mpg numbers?

[4xChinook4 [OP]]

I ran 33s ad 32s on highway with 5.29s for a few years.  Really drivable and good mileage too. I usually broke 20 mpg after taking the speedo difference into consideration. You could load the thing up like crazy and it pulled passes in 4th gear no problem.  You could push headwinds in 5th most of the time.

I think your 4.88/32" combo should produce similar results.

By the way bro, what did your hybrid build consist of? I'm sure you've posted it somewhere on here but if you could please?   no major detail if you don't feel like it, though . Appreciated

[H8PVMNT]

I have never built  hybrid, 79coyotefrg is the hybrid master.  I have a stock 20r in my 80 right now.  It has stock 4.37s and I am pulling 35s right now that were intended for my 4runner. It is OK but I never ever use 5th. 

With 31s the speedo is dead on ad I can get 20+ mpg, still use 5th on flat highway.  It does well loaded down and towing with 31s as well.  I like to keep 31s on that truck otherwise I would re-gear it.

I really think with the 4.88s and 31-32" tires if you have your engine tuned up good it should do OK.  If you get that 150 horse hybrid going you should tear up the highway with 31s on...  I would really consider running 31s for your ride. The slight gearing advantage and the fact that they are more commonly stocked than 32s would be handy for a live in it type expedition truck.

My other rides over the years were mostly 22re with 5.29s and 33-35" tires.  With 5.29s and 33s pulling passes was no problem at all, probably better than stock with stock tires.  35s and 5.29s feel about like a bone stock truck.

Oh and adjustable cam gears are really neat.  That was the most noticeable mod I ever had on a 22re.  I used it with a DOA 270 cam and after tweaking with the cam gear the truck would lug down so far while crawling the tach was just bouncing of the bottom.

[4xChinook4 [OP]]

Nice bro thanks for the detail with story.  And ya Glen IS the hybrid master, glad he's involved in this thread. And honestly I'll have to check my tach and speedo again, I'm out of towm till the end of the week(maybe longer), but if and when I get home I'll give a true estimate. But what was your top speed.? Cruising speed.?

[4xChinook4 [OP]]

Hey I know this may throw you all off, but what about a motor swap? ......drum roll........  to a 2F!! I  mean they are stout motors, and put out great torque numbers. I haven't  put much research into this, Yet, but just thought about it. What do ya think?

[4xChinook4 [OP]]

Will it mate to the tranny? Exhaust on wrong side? Mpg? Fitment in compartment? Motor mounts? Repair costs? I know I could answers with some research, but I literary just thought now as was reading over my thread. And for what ever reason this "tapatalk" app doesn't come up with all the threads I KNOW exist  on Marlin.. so what do ya think.?

[helipilot77]

Heavy. Not fuel efficient. Not enough room.

[4xChinook4 [OP]]

Haha well I guess that's all I needed to hear. Lol thanks helipilot77 . So it's still better to build the hybrid

[4xChinook4 [OP]]

And I was doing to research on some of the threads, now I totally get the whole bumping up of compression and all, but I'm not entirely sure but isn't a high compression level motor not what I want to pull my truck/camper around. Or am i totally wrong on  this.?? And if I'm right should I seriously consider trimming down those donut lips on the piston heads. Is this necessary for my aplication.

[helipilot77]

Saw these twin beauties today and thought of your project.

[4xChinook4 [OP]]

Haha ya buddy!! That's what I'm talk'n about! Glad it made you think of my project. Were is this? I know of all the chinook's within  a 5 mi radius from my house, and have paid a visit to each owner, they all greet me with a smile and love to see a kid of my generation driving  one of these! They love it even more when they find out the reason I came was to hear their story. With their  Chinook of coarse

[toyodaaddict]

Nice find heliPilot! Someone needs to rescue those beauties

4xChinook, Thanks for sharing your project. These Chinooks are beyond cool . I've seen lots of toy motorhomes but these are a bit different and I dont think Ive ever seen one in person. I still think a 3.4 would be sweat under the hood. I just got to drive a 3.4 taco and they scoot. looking forward to seeing this progress.

[4xChinook4 [OP]]

Nice find heliPilot! Someone needs to rescue those beauties

4xChinook, Thanks for sharing your project. These Chinooks are beyond cool . I've seen lots of toy motorhomes but these are a bit different and I dont think Ive ever seen one in person. I still think a 3.4 would be sweat under the hood. I just got to drive a 3.4 taco and they scoot. looking forward to seeing this progress.

Thanks bro,  haha, :big thumbsup: . Look out for my actual build thread, when I go through with hybrid, and the revamped camper interior design.
Note: the interior revamping very likely  won't happen till closer  to spring.

[toyodaaddict]

For me, I think the interior will be the most exiting part to see. who needs a house when you got a Chinook The possibilities are endless

[4xChinook4 [OP]]

For me, I think the interior will be the most exiting part to see. who needs a house when you got a Chinook The possibilities are endless

Haha yaya! Hence my signature

However that portion of the build may not get started till around spring