1FZ-FE Thoughts/Clarification

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@gonzopancho when you say bell housings sooner rather than later, are you talking weeks or months? I have not ordered the H151 bell housing yet, the engine goes to the machine shop next week and I'm hoping to get the swap officially started by the end of January.
 
My modern fe is here and i may start soon with h55. I'll keep you y'all updated once i have a thread

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Copy that. On a related subject to the swap, do y'all have recommendations on sound/thermal insulation I should put on the firewall and transmission hump while everything is out? Lizard Skin comes to mind, but I haven't worked with it, nor do I know anyone who has an opinion locally.
 
midknightc3 said:
Copy that. On a related subject to the swap, do y'all have recommendations on sound/thermal insulation I should put on the firewall and transmission hump while everything is out? Lizard Skin comes to mind, but I haven't worked with it, nor do I know anyone who has an opinion locally.
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Lizard Skin has to be sprayed.

I’ve done trucks with Lizard Skin, snd my opinion is it works pretty well, but if spraying isn’t an option, @Cruisers and Co can tell you what they used on the piggie

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gonzopancho said:
Lizard Skin has to be sprayed.

I’ve done trucks with Lizard Skin, snd my opinion is it works pretty well, but if spraying isn’t an option, @Cruisers and Co can tell you what they used on the piggie

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Aluminum face, fiber insulation with an adhesive layer. We use something extremely similar on our turbo downpipes and it is LEGIT for keeping heat at bay
www.designengineering.com

Black Floor & Tunnel Shield II™ (Adhesive) - 42" x 48"

Use as a barrier to reflect and insulate from any heat source. Designed to provide the best possible heat protection in areas where high temperatures are always present and problematic, Floor & Tunnel Shield II limits heat transfer on fire walls, transmission tunnels, floor boards, fuel cells...
www.designengineering.com www.designengineering.com

For those pursuing this 1FZ-FE swap stuff into older cruisers I can say hands down it is my favorite platform to date and will be putting one in my 40 at some point. This is coming from someone who has done LS3's, R2.8's, 1HZ, 1HDT's... Paired with an H55 it really is a great swap and if you add a turbo.... well damn hahaha It is smooth, powerful, and still very much Toyota which is why we are all here posting on this forum/driving these things

With our turbo kits we're pushing around 450HP/600Ftlbs at the crank on some of our 80 Series builds (dyno'd 364hp/481 ftlbs through a slushbox A343F). That 55 will make similar power (haven't dyno'd it yet) but it is disgustingly awesome how easily it pushes the 55 down the road right now on 37's and we aren't even done with tuning/methanol injection so we haven't unlocked it's full potential.

Also for those of you thinking about waiting for a bellhousing for a project like this one, wait for @gonzopancho to wrap up what he's working on. It will be polished and fit 100% correct. He scanned the FJ Co bellhousing here in my shop and there are some issues we discovered with it that are being fixed.
 
Cruisers and Co said:
For those pursuing this 1FZ-FE swap stuff into older cruisers I can say hands down it is my favorite platform to date and will be putting one in my 40 at some point.
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But unlikely before he helps me drop a stroker 1FZ-FE in one of my 40s.

The fj45lv already has a 1FZ-FTE/h55f.

Guess I need to buy a 60 soon.

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Cruisers and Co said:
Aluminum face, fiber insulation with an adhesive layer. We use something extremely similar on our turbo downpipes and it is LEGIT for keeping heat at bay
www.designengineering.com

Black Floor & Tunnel Shield II™ (Adhesive) - 42" x 48"

Use as a barrier to reflect and insulate from any heat source. Designed to provide the best possible heat protection in areas where high temperatures are always present and problematic, Floor & Tunnel Shield II limits heat transfer on fire walls, transmission tunnels, floor boards, fuel cells...
www.designengineering.com www.designengineering.com

For those pursuing this 1FZ-FE swap stuff into older cruisers I can say hands down it is my favorite platform to date and will be putting one in my 40 at some point. This is coming from someone who has done LS3's, R2.8's, 1HZ, 1HDT's... Paired with an H55 it really is a great swap and if you add a turbo.... well damn hahaha It is smooth, powerful, and still very much Toyota which is why we are all here posting on this forum/driving these things

With our turbo kits we're pushing around 450HP/600Ftlbs at the crank on some of our 80 Series builds (dyno'd 364hp/481 ftlbs through a slushbox A343F). That 55 will make similar power (haven't dyno'd it yet) but it is disgustingly awesome how easily it pushes the 55 down the road right now on 37's and we aren't even done with tuning/methanol injection so we haven't unlocked it's full potential.

Also for those of you thinking about waiting for a bellhousing for a project like this one, wait for @gonzopancho to wrap up what he's working on. It will be polished and fit 100% correct. He scanned the FJ Co bellhousing here in my shop and there are some issues we discovered with it that are being fixed.
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So the expectation is a perfect 1FZ bolted straight up to an H55F?

I though the 5speeds that come with the 1FZ overseas were better. (H151F?)
 
IronNam said:
So the expectation is a perfect 1FZ bolted straight up to an H55F?

I though the 5speeds that come with the 1FZ overseas were better. (H151F?)
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Better in a few ways, sure.

H55F is 1st gear (4.843:1), 2nd (2.619:1), 3rd (1.516:1), 4th (1.000:1), 5th gear (0.845:1)

H151F is 4.08:1, 2.294:1, 1.490:1, 1.000:1, 0.881:1

H152F is just like the H151F, except taller 2.175:1 2nd and 0.750:1 5th gears.

The H15x series is much larger, so more difficult for a correctly-placed swap into 40/50/60 series. You can “cheat” and mount the engine/transmission low, and then you end up with pan to axle housing interference, or you do a lot of sheet metal work to the firewall and transmission tunnel. In shorter vehicles like a 40 series, the h15xf is much longer, and this can be challenging (but not impossible) in a 40.

In a 55 or 60 series, your biggest issues will be locating the shifter and some relatively minor firewall / tunnel mods, though if you mount things *correctly* your largest hurdle will be the cover.

If memory serves, a h151f/h2fa combo has about the same rear driveshaft length as my vortec/4l60e/2-speed case did.

If it wasn’t for all that, I’d just take one of the several h151/152 new units I have new in crate to use in these projects.

I had a supercharged 1fz + h55 in a fj40. It was done wrong, so I pulled the drivetrain, rebuilt or replaced parts of it, added a black box doubler and stuffed it all in the 55 body on 80 frame project.

4.56:1 gears in the thirds, so first gear, lo-range and the doubler in is

4.843 x 3.1 x 2.72 x 4.56 =186.213:1 crawl ratio.

Which would be challenging to duplicate with a h151

Stock with 4.88 thirds: 4.08 x 2.488 x 4.88 = 49.537
3.3:1 lo range and 4.88:1 thirds: 4.08 x 3.3 x 4.88 = 65.704

If you use a LS engine and a NV4500 you could get a 6.34:1 first gear, and with an atlas 4-speed and the lowest available gear ratio (11.70:1) and 5.13s in the thirds:

6.34 x 11.70 x 5.13 = 380.533 but I bet you’re breaking parts with all that. 😀

Anyway, in addition to that, I have
  • an unfinished supercharged 2UZ + h151f in a 55 body/frame project
  • Another fj55 on 80 frame project. Drivetrain undecided.
  • A fJ55 with turbo 1fz-fe + 5-speed auto project that starts soon. This and the LV are the grocery getter/parts run trucks.
  • a 5.2L stroker 1fz + h55f fj40 project (starts soon, and if I hadn’t set the CR at 10:1, this would get a turbo)
  • A turbo 1fz + h55f in a 1966 fj45lv
  • A 1HD-FTE (plus mods) + H152F / H1FA case in an e-locked LX450
  • A new in crate 1FZ-FE + H151F to go in a stretched 1963 FJ40
So it’s not all purely theoretical to me.
 
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gonzopancho said:
Better in a few ways, sure.

H55F is 1st gear (4.843:1), 2nd (2.619:1), 3rd (1.516:1), 4th (1.000:1), 5th gear (0.845:1)

H151F is 4.08:1, 2.294:1, 1.490:1, 1.000:1, 0.881:1

H152F is just like the H151F, except taller 2.175:1 2nd and 0.750:1 5th gears.

The H15x series is much larger, so more difficult for a correctly-placed swap into 40/50/60 series. You can “cheat” and mount the engine/transmission low, and then you end up with pan to axle housing interference, or you do a lot of sheet metal work to the firewall and transmission tunnel. In shorter vehicles like a 40 series, the h15xf is much longer, and this can be challenging (but not impossible) in a 40.

In a 55 or 60 series, your biggest issues will be locating the shifter and some relatively minor firewall / tunnel mods, though if you mount things *correctly* your largest hurdle will be the cover.

If memory serves, a h151f/h2fa combo has about the same rear driveshaft length as my vortec/4l60e/2-speed case did.

If it wasn’t for all that, I’d just take one of the several h151/152 new units I have new in crate to use in these projects.

I had a supercharged 1fz + h55 in a fj40. It was done wrong, so I pulled the drivetrain, rebuilt or replaced parts of it, added a black box doubler and stuffed it all in the 55 body on 80 frame project.

In addition to that, I have
  • an unfinished 2UZ + h151f in a 55 body/frame project
  • Another fj55 on 80 frame project. Drivetrain undecided.
  • a 5.2L stroker 1fz + h55f fj40 project (starts soon, and if I hadn’t set the CR at 10:1, this would get a turbo)
  • A turbo 1fz + h55f in a 1966 fj45lv
  • A 1HD-FTE (plus mods) + H152F / H1FA case in an e-locked LX450
  • A new in crate 1FZ-FE + H151F to go in a stretched 1963 FJ40
So it’s not all purely theoretical to me.
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Perfect and detailed explanation, thank you.

Definitely a lot more physical "barriers" to consider for a proper H15xF conversion. H55F makes the most sense for majority of the J40/J55/J60 builds.
I'd love to see a 3UR in front of a 5MT/6MT in a 60 series, but we're just dreaming at that point.
 
Like that rear bumper!

Did the GCC models come with side steps, or are those aftermarket?
 
Okay, today is the first day of progress, and it's good progress.

We discussed many options, but I kept wanting a new bell house mold. We may see a sketchy mold soon, but a CNC cut is a possibility, too.

We have another option, but I'm not excited about it: making a plate between H55 and the 1fz bell house.

will see,
 
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