1FZ-FE Thoughts/Clarification

[wngrog]

On the way

 

[OGBeno]

That’s the move.

 

[midknightc3]

@Cruisers and Co pardon my layman's lack of knowledge, but what the hell am I looking at here? That's an H55 bolted to a 1FZ bell housing? Did you cut off the transmission side and weld on a new plate machined for the H55? Definitely sexy, obviously being built for someone who wants to tangle with some boulders!

I'm now committed to @wngrog H150 and HF1A, but how does this change the math on parts I'm already tripping over? I have the 275mm fly wheel, but there is a 300mm option available, is that a meaningful difference for this sort of project? What about the clutch itself, it's not listed for the 1FZ but it is the same 275mm? For easy reference, here are the parts I have already.

Flywheel (FZJ70) : 13405-66020 275mm
Clutch Disc : 31250-36343
Clutch Cover (PP) : 31210-36330
Slave Cylinder : 31470-60171
Pilot bearing : 90363-15017
Release Fork : 31204-36110 (this is for a 1PZ, but is what FJ Co. used???)
T/O Bearing : 31230-60130
Flywheel Bolt: 90913-01021
Bell Housing: 31111-60302

Thanks!
Clark

 

[Cruisers and Co]

@Cruisers and Co pardon my layman's lack of knowledge, but what the hell am I looking at here? That's an H55 bolted to a 1FZ bell housing? Did you cut off the transmission side and weld on a new plate machined for the H55? Definitely sexy, obviously being built for someone who wants to tangle with some boulders!

I'm now committed to @wngrog H150 and HF1A, but how does this change the math on parts I'm already tripping over? I have the 275mm fly wheel, but there is a 300mm option available, is that a meaningful difference for this sort of project? What about the clutch itself, it's not listed for the 1FZ but it is the same 275mm? For easy reference, here are the parts I have already.

Flywheel (FZJ70) : 13405-66020 275mm
Clutch Disc : 31250-36343
Clutch Cover (PP) : 31210-36330
Slave Cylinder : 31470-60171
Pilot bearing : 90363-15017
Release Fork : 31204-36110 (this is for a 1PZ, but is what FJ Co. used???)
T/O Bearing : 31230-60130
Flywheel Bolt: 90913-01021
Bell Housing: 31111-60302

Thanks!
Clark

1st photo on the cart: 1FZ - Toyota Bellhousing - H15X - NWF black box - hf1a that we swapped to a an HF2A so we could put 3:1's in. Can't do that on a HF1A

2nd Photo: 1FZ - FJco - Bellhousing - H55F - NWF Black Box - Splitcase with 3:1's and yeah @gonzopancho likes to party

 

[gonzopancho]

2nd Photo: 1FZ - FJco - Bellhousing - H55F - NWF Black Box - Splitcase with 3:1's and yeah @gonzopancho likes to party

I mean, … “bump it” is the universal off-road term for “let’s see if horsepower will solve it.”

 

[midknightc3]

So I understand I need a new clutch kit to go with the H150, but can I retain the 275mm flywheel rather than having to buy a 300mm? Or would I potentially regret that smaller size of I were to add a mild turbo someday? Are the 300mm clutch kits more readily available than the 275mm?

Thanks!

 

[Cruisers and Co]

So I understand I need a new clutch kit to go with the H150, but can I retain the 275mm flywheel rather than having to buy a 300mm? Or would I potentially regret that smaller size of I were to add a mild turbo someday? Are the 300mm clutch kits more readily available than the 275mm?

Thanks!

We’ve used uniclutch’s in our setups with great success. The 1FZ-h55 is running a 275mm flywheel with a uniclutch 4terrain unit. We’ve done another 275 mm flywheel h150 unit with the Uniclutch sport and that was great, liked that unit a lot. Forget the numbers from that truck but it was up there in power, +400whp and over 500 ftlbs. The other h152 black box combo I posted above is running a uniclutch sport also on the 275. It’s on the road as of this week and while not boosting to the moon yet… it’s doing great.

I think choosing the right clutch matters more than the diameter. The uniclutches are only actually 240 mm but can hold ~800-1400ftlbs. The sport is compliant and the 4terrain is grabby.

 

[midknightc3]

Makes perfect sense to me. And even if I turbo this engine in the future, I don't have much intention of putting a whole lot of boost behind it. Certainly you are talking significantly higher output than I am envisioning! Had not encountered Uniclutch before, seems like a good concept so I'll definitely be keeping them in mind. Waiting on word from Cruiser Outfitters tomorrow as to which OEM clutch kit they stock. They sell the 300mm flywheel but the clutch kit doesn't specify.

 

[midknightc3]

I'll post a WTB as well, but I need the shifter for the H150 as well as the HF1A. Looks like the H150 is fairly available, but I'm having trouble finding the whole assembly for the transfer case. @OGBeno @Cruisers and Co @gonzopancho @dogfishlake anyone have a source?

 

[midknightc3]

Small progress this weekend, getting some heat shielding installed. Thinking when the transmission/transfer case come out I will apply some to the transmission hump as well.

Now I just need to light a damn fire under my mechanic to get going on the actual install!