TNRabbit

Thanks, guys.

Don't count my chickens before they hatch! It's not a done deal yet, but looking good! Wish me luck...

bigtrucknwheels

I wish you luck!






Clint

Jay351

I saw on toyotanation that you were eyein the engine. Hopfally you get it and it works out!

ever figure out what happend on the last engine?

TNRabbit

Never did find out what it was; I never took the head off...it's still sitting in my driveway! Got pretty bummed about the whole deal...

Jay351

Oh, well thats understandable. You went through the entire process of one of the best engine builds I have seen, and it pops another hg.

I was hoping you would do the lexus 4L, I would love to do that down the road

Bumpin' Yota

Engines are air pumps. X amount of air is needed to attain Y amount of HP. The amount of air pumped is directly proprotional to the amount of power you can potentiall get out of the engine. That amount is dictated by redline and displacement ONLY.

NOTHING ELSE.

Which moves more air?

A. A 700 cubic inch v8 making 250 hp at 1,000 rpm
B. A 60 cubic inch I4 suzuki engine making 250 hp at 18,000 rpm?

Neither. They both flow the same amount of air. One makes up for its lack of displacement through RPM.

It's the amount of air that your engine can pump is what determines potential power. Thus when you are limited to 181 ci (3.0L) with a 5800rpm red line, even with an unrealistic VE of 100% the most you will get is about 240hp. Considering the 3vze will never even get close to 100% you should count on about 230hp at most - at the crank!

I hate to burst your bubble TN but unless that 3vze probuilder has can rev to 7000+ rpm and/or is bored and stroked to about 4+ litres or is running forced induction then it aint making anywhere close to 300hp or 250hp for that matter.

Have him get a race weight, then run it down the 1/4, that will tell you the story all too well.

Now I am damn sure his engine is much much better than most others, but 275+hp without FI, sorry but no.

TNRabbit

"...unless that 3vze probuilder has can rev to 7000+ rpm and/or is bored and stroked to about 4+ litres...?

I don't know that either or both of those are/aren't true. I'll let you know! I pulled the following quote off a post by PB last March: "I can easily get 300 horse out of a normally aspirated 3vze, real horse, not gear reduced measurements. Myself, I'm no butcher...the engine my truck came with is the engine in it, burns no oil, leaks nothing, and lights the tires all the way down the street till I let off."

Incidentally, the ECU/wiring harness/VAFM comes with the engine...AS WELL AS the TRANNY! WOO HOO!

Dude, I'm getting a STEAL on this thing.....

TNRabbit

Correction:

The engine is "in the 250-275 horse range and maybe 225-250 ft lbs torque"...

Bumpin' Yota

hmmm that is more believable. As far as the work he did going into the top end to help flow, that just makes the engine have a higher volumetric effeciency. The 240odd hp I calculated assumes 100% VE. Engines can go above 100% VE while NA over a very narrow RPM band. For instance most of your NASCAR Cup v8s will actually get to around 110% VE over a narrow bandwith of rpm. Keep in mind they spend millions of dollars for that RD on the exhaust side of things to get that ~10%.

I have no doubt that he can get 300++ hp out of the 3vze, but he'd have to do something to make it pump significantly more air. Punch and stroke it, rev it higer, etc. Reading the PMs it sounds like he did stroke it. I just wish I knew how much and if it were capable of being taken over 5800rpm under normal operating conditions.

ps - and did he do anything to correct the stock rods? I've heard from a pretty good source that they are quite suspect once over 200hp.

TNRabbit

I'll let you know when I find out for sure, Bump. The key was to make it a good towing vehicle with lots of torque through out the rpm range. I've actually read that the 3VZ-E has one of the most robust bottom ends, so I'm not sure what your source is...

Refresh my memory; VE is Volumetric Efficiency, yes?

Bumpin' Yota

Yes, VE = volumetric effeciency

And I just got done rereading my PMs and it wasnt the con rods themselves, but rather the rod bolts on those con rods are of the same design as the 5s-fe found in camrys. Those guys apparently had LOTS of issues with rod bolts stretching.

Find out if PB had arp make some hardward for the rod bolts.

(Im not sure if "rod bolt" is the corret terminology, it just doesnt sound correct. But these are the stud/nut combo that holds the rod cap against the rod and around the crank journal. They also stretch on LS1's when you get over 500crank hp.)

TNRabbit

OK, looks like I'll be selling my engine...anybody interested? Probably just needs a new head. But everything else is in fantastic shape. I'll be keeping the H/D alternator....

bigtrucknwheels

asking price?

wiring harness available? If I do a manual swap, I would want to rebuild my block, but yours is already built...

TNRabbit

I'm not positive what exactly I'll need from mine right now, probably only need the alternator & for sure the fan bracket/fan. Harness can probably go with it. We can work all that out. Just about everything else that is bolted to the engine will go with it.

How does $850.00 sound? PM me...

TNRabbit

Crap; the deal with the engine fell thru and he ended up scrapping the truck. I tried to contact the yard but they never returned my inquiries.....looks like I'll be replacing that HG after all....

infiltrator

Awww, we were all crossing our fingers for ya.

How have you gotten by without your truck so far?
Saving any money?

MonsterMaxx

I used enginbldr's and {knock on wood} they are holding up. But I consider this whole headgasket mess a failure waiting to happen.

I'm sorry to hear about the death of another 3VZE, but not surprised. If I were you, I'd cut my losses and do the 3.4 swap.

rdlsz24

Why would he scrap a souped up engine?

Rob

MonsterMaxx

same reason I would

bigtrucknwheels

and that would be?