1FZ-FE Power Increase

[bjowett]

The 1FZ is far from a fork truck engine. We have an over square engine with a large bore, and 24 large valves. It is very under tuned.

As for overheating... A properly sized radiator will remedy that. Mine runs cool, but I have no AC to restrict the airflow. A nice Cometic head gasket and some ARP studs will eliminate any HG issue.... loosing the EGR through the back of the head couldn't hurt, either.

I wonder if the latest generation of Eaton Superchargers will work for the TRD SC kits? The TVS units are FAR more efficient than the 5th generation M series.

 

[LINUS]

Another variable is the expectation each of us have from our rigs - some guys tow stuff, some just crawl & run trails, the list could go on....I personally have a S/C waiting to go in my 1st one in sig once I sell the 2nd one in my sig (getting it ready now)...but my expectation is to only ever tow a light boat, and negotiate boat launches that are sand going into the rivers if not a real boat launch with the concrete traction strips.

IDK availability on the S/C's - I already have mine just waiting.

Also, theoretically I could take it to a Yota dealer if something was wrong & I was lazy & felt like cutting a check -- something motor swaps don't have the same theoretic ease of.

I decided I just needed one 80 though, I literally have 1500 miles on the LX450 since buying ~year ago. One with an S/C will have all the tq & hp I need & 4.88's are fine on sandy boat launches around here - I like the 5.29's but 2 whole rigs is more 80 than I need.

 

[Tenni126]

Unless you have the time, $$$, shop and fab skills the SC is hard to beat. It bolts on in a day, is $3200 and the 80 gets plenty of hp for normal driving.

This. I'm overall very happy with the TRD. Fit, finish and completeness of the kit is high, and it makes enough power to where i don't think about needing more power. Availability of rebuilding the actual blower is an issue, but like everything else one that I'm sure will get solved by the same smart folks that provide market solutions for everything else we need for these rigs.

 

[pkelly72]

Agreed. A bolt on intercooler solution would be nice too.

 

[1FZj80]

Never had issues passing anyone, accelerating to merge onto a highway, etc. I don't tow with it and will never tow with it.

Those who have installed a SC, turbo, engine swap or complain about the power of the 80 would disagree with you. The 80 is underpowered for the way we drive in the US.

 

[OGBeno]

Those who have installed a SC, turbo, engine swap or complain about the power of the 80 would disagree with you. The 80 is underpowered for the way we drive in the US.

I'm not saying its not underpowered ... It is...

But that's the whole point. The engine was designed to go almost 300,000kms before bottom end rebuild--designed ... That's insane. That to me tells me something about the integrity of the 1FZ. Integrity of heart is way more important to me than how fast I can go or what size boat I can tow.

You do realize that the 1FZ block can easily take 500-700hp easily with stock components, right?

There are iterations of the 1FZ pushing almost 1000hp in the Middle East and Australia.

This is not a derelict engine thrown together by Toyota engineers for naught.

Realize it was designed in the late 1980's for passenger vehicle use in the mid-1990's. Most speed limits were still 55mph in the US--and we are talking about a vehicle that is approaching 20+ yrs old this year. What does anyone really expect.

Like I said, use the engine as it was made to perform: I regularly drop it into 3rd or 2nd to utilize the engine HP and torque to get me going and I rarely have any issues cruising 80mph if I want.

That said, this is a bullet and a killing machine... I am not interested in a Land Speeder... I want a Land Cruiser.... There is a semantic difference.

And it makes all the difference in the world.


EDIT: Ironically enough, I just realized this was a poll. Interestingly enough, "just live with it" is the leading vote getter.

 

[scottryana]

Not arguing with that I know I certainly don't want a race truck. But I would like some more power. I haven't driven a truck with the TRD system but I am sure that level of power even though a fairly modest increase is nice. I do approve of the 1FZFE I just don't approve of the method of TRD supercharger lol

 

[murf]

Off point~ but for the money, the missing option could also be to sell the 80s and get a 100 series with the 4.7.

Yeah, I know - its not the 80. But, still a potential option. Ive seen some early 100 series selling for pretty reasonable prices.

 

[OGBeno]

Off point~ but for the money, the missing option could also be to sell the 80s and get a 100 series with the 4.7.

Yeah, I know - its not the 80. But, still a potential option. Ive seen some early 100 series selling for pretty reasonable prices.

Your amigo in Arizona, Phil-I-A also mentioned the same thing and I also think this is a very legitimate option for folks....

 

[Rookie2]

A little further off topic... how wrench-friendly are the 100's, relative to an 80?

 

[kirkm76]

Those who have installed a SC, turbo, engine swap or complain about the power of the 80 would disagree with you. The 80 is underpowered for the way we drive in the US.

Where are you driving that you find it underpowered? I have had no issue on the East Coast and before I deployed last time ran 90+ from Fort Lee, VA to Fort Knox, KY to come home for the weekends when the Army sent me to a last minute school before we went to the Stahn. The wind noise was pretty loud and the fuel economy was not so good but it was not uncomfortable. I wouldn't do it every day, but point being I don't know where else I'd need to go that fast. My offroad jaunts tend to be slower. I did have trouble maintaining 90 through West Virgina though not so much due to the hills but due to the curves. They are no Miata.

I had a 3500 pound pop up it towed without issue. I did go to a travel trailer of roughly the same weight I rented once and it was underpowered for that duty...severely. Like pulling a parachute.

If you want more power then go for it. I wonder though how close you'd be doing, say a solid axle swap on a 100 vs serious power mods/engine swaps on the 80 though. I will admit though, for what I spent when I did my rebuild of everything on my truck I was probably dangerously close to a LS swap money wise. I'd like to see a duramax/allison in one if I hit the lottery.

 

[alia176]

Where are you driving that you find it underpowered?

according to the dyno charts, our 80 produces about 100hp at 3000 rpm at the rear wheels. Yup, that's under powered for my 7000# rig at 7,000' elevation in my book.

 

[rockrod]

One drive in a v8 swapped 80 and i am willing to bet most of you would change your tune.

There is no comparison.

 

[murf]

One drive in a v8 swapped 80 and i am willing to bet most of you would change your tune.

There is no comparison.

"ignorance is bliss"...when I went from my 1992 3FE to my 1996 1ZFE, I thought I had gobs of power.

Then....I wanted more.

Does it really ever end?!

 

[coax]

Had I the money I'd take any of the options listed in the poll Especially since driving at 12k feet doing a 1st gear slog gets painful. But I get there and get back, which is what counts.

If anything I'll end up replacing the Cats and o2 sensors to try and improve things a bit. Pretty sure they are shot and end of useful life. I'd just have so hard of a time spending that many thousands of dollars on any sort of forced induction or engine swap that could be used for gas for adventure!

 

[1FZj80]

Where are you driving that you find it underpowered?

Well..., western US. I live in So. Cal, so I pound the pavement in CA, AZ, NV, UT, CO, etc. The worst is fully load at elevation.

I did a Death Valley trip this past winter with a group and I was the only one with the SC. Sure, you can get around fine, drop it to 2nd and scream the rpms or just drive slow. But, with the SC, it's a totally different driving style with just a few more hp.

Whatever twists your Twinkie. I think the SC (or other power option) is one of the best mods to the 80 and is really no different than tires, re-gearing, tc gears, exhaust, etc... Those who say you need to stay pure to the truck and dive it like it was designed somehow imply a little power up is different than all the other mods we do? I don't get it.

If you are happy with the power, great. If not, it is nice that we have a few options.

 

[beachcomberspi]

Have modded a Twin Turbo 97 Supra over the years I say no, it never ends. Always can go faster!!!

"ignorance is bliss"...when I went from my 1992 3FE to my 1996 1ZFE, I thought I had gobs of power.

Then....I wanted more.

Does it really ever end?!

 

[Gorilla]

Have modded a Twin Turbo 97 Supra over the years I say no, it never ends. Always can go faster!!!

Me too, but the Supra is for track duties now and now that my 80 is my daily, I could live with a Nice GT35R on the end of the 1FZ lol

 

[80Greg100]

to quote a famous football coach, "it is what it is...." IMHO, more power is secondary to longevity, reliability, and getting back home every time.

 

[86tuning]

I'd just have so hard of a time spending that many thousands of dollars on any sort of forced induction or engine swap that could be used for gas for adventure!

That's exactly why I haven't done anything to the power train on mine. Saving up for gas for an adventure

When I'm empty, there's enough jam eventhough I'm on 315s without regearing. Fully laden is another story, and even towing my tin boat I have to choose my routes carefully.