Los Gatos?

Some say no more than 6200, even with valvetrain work, some say 7500 with correct rockers, valve springs, and seats. What is the highest a street/moderately prepared 22R can redline at?

Plays_with_Toys

22R or 22RE?? .....Does it make a difference?

Curious why you'd need to know this.... although I have accidentally dropped it from 5th to 2nd gear, and the engine was screaming.

Los Gatos?

Because I want to build up a crazy 22RE for street/strip racing and I really want it to pull to around 7000-7500 RPM.

Chuki

It really depends on your camshaft and induction.

I have a nice lil 20R/22R hybie in my 82'

82' 22R block
.040" over forged pistons
balanced crank
80' 20R block (headwork done by DOA)
Stainless steel swirl polished valves
multiangle valve job
High rev valve springs
titanium retainers
Polished combustion chamber
ported intake
ported and polished intake
DOA C270 cam
20R intake ported (kahler modded to accepter weber 32/36 without adapter)
Doug Thorley header
2.25" all the way out
Flowmaster delta 40
14* Advance timing
Autolite AP65s .045" gap

Dyno'd in with stock ignition, and air box at 149HP and 185 ft-lbs. I have since properly tuned my carb, and improved air intake. No dyno results though. I have also degreed my cam, and if I let it'll rev 7500+ in neutral. If I retard my cam 2* it really brings the power band higher in the RPM range, and I can bang 7500 in gear, but doesn't start producing anything till about 2800 rpms. I like to run my cam about 2.5* advanced, It'll free rev to about 6500, and in gear will pull to about 6200 in 1st, 2nd, about 5800 in 3rd, and 5500 in 4th with alot road in front of me (no 5th gear) but power and torque comes on strong at about 1200 Rpms. ANd pulls hard even from an idle. With the cam zerod in it'll free rev about 7000, still tops out about the same in all gears, but the range in which it pulls is from about 1600 to 5800. I have it right now so its real good from about 1200-5000 which is where I like it.

Now I just need to get my timing curve just right. I also got a fuel injection kit ready to put onto my lil hybie. Future may call for an LCE charger but price is a little rich for my poor blood.

Most cams are rated in RPM in which they perform there best, not what they will flat out rev. Stock cam in most 22RE's is rated from idle to 4800. Everyone knows the stock 22RE will rev higher then that, but after that point power is fairly flat...

If you really want a flat out race rocket of a 22R, I'd go with a short throw crank from LCE, a light flywheel and clutch. And a good cam rated from about 2000-6500 or so. That setup would probably rev to 8000-9000 RPMs. Granted your induction, and exhaust system, and mechanics of the engine would allow it, and hold up to it.

Duffdog

you might want to consider a 3rz-- the dohc version... stock is better than what almost any 22re could do when modded all to hell. first off, they have an inherent problem with roll and swirl on high rpms because of the rod/crank ratio. it is a short rod engine...meaning it breathes better at low rpms because the max acceleration of the piston occurs before tdc and not after. if it occured after--(honda engine b18c for instance, the engine would have less torque and more high end)

i had a crazy modded 22re in my 90 yota
it had

titanium valve springs
bored .30 over
titanium con-rods
forged pistons
knife edged crank
big-ass valves
trd stage 1 cam(--ask if you want to)
headers
intake type thingy with stupid factory maf still attached
i revved it to 5500 and even then it was funky at that rpm.


and it had posi and racing tires and gears and re-indexed torsion bars and the stupid truck still couldnt get into the 13's-- i then got wasted by a basically stock 2rz tacoma with a turbo at 6psi and stock internals.

T

Los Gatos?

Well I am headed for:

'85 block
machined '80 head, ported, 3 angle valve job, oversized 22R SS valves, dual valve springs
.020" pistons
custom intake manifold for independent throttle bodies (48mm each)
custom EFI using megasquirt & megavolt
depending on how the head flows, somewhere around an LC stage 4
doug thorley header
2.5" exhaust


That, or a 3RZ, except that a 3RZ is $$$$$$$$$$ to modify, and also really difficult to put in the mid 80s pickups due to exhaust and fuel coming in on reversed sides, mounts being different, transmission being different, etc...

Chuki

Your talking a turbo against a normally aspirated engine. And with the setup you listed there sounds like your fuel delivery system wasn't up to snuff. When you start modding your engine for horsepower, you gotta have an intake system to deliver it. The stock intake system isn't that capable of it. You should have gone bigger injectors, throttle body, maybe even a diffrent a computer (megasquirt) that way you can program your fuel curve.

My engine is generating 150Hp if not more since I've tweaked it alittle bit, and I'm not really that radical on anything, stock crank, rods, nothing to fancy, just balanced, headwork, freshrebuild and a cam.

The 22R is capable of monster power if you know how to get it out.

Gotta be reason its LCE and DOAs main pride and joy to work on. (LCE didn't do the supercharger for the 22R for nothing)

Los Gatos?

Completely agreed, Chuki!

200hp Stage 5 LC engines might not be that streetable, but they make 200hp, and guess what, they are CARBURETED! That's *WHY* they aren't streetable. It should be possible to have a relatively well mannered street 22RE with around 200hp/240tq, based on displacement and rev capability, assuming the head flows well enough (it's a hemi ) and has large enough valves to move the air through.

Chuki

Go to the front page of DOA check out Jeffs 100% streetable Turbo'd out 22RE-T. DOA has exclaimed to me on more then one occasion that he's gotten 300+ HP out of a 22R using pump gas!!!