How does the 3.4L handle high revs?

904_runner · 07-21-2009, 01:20 AM

Figured id get the most looks here.

Just wondering how the 3.4L likes being rev'd up high. I hit rev limiter in it a bit, but im driving it hard, Ive hit it many times wheeling, but i don't let it just sit there and bounce off it for a long time. Is hitting the rev limiter and holding it there for a few moments okay or is that too hard for it?

I know a bunch of people who are under the impression that the 22res can bounce of their rev limiters all day and be fine as long as it doesn't overheat.

A few of us were just wondering the info about the 3.4Ls and how it tolerates such driving.

Discuss. Thanks.
-Mike

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904_runner · 07-21-2009, 01:21 AM

crap i know i spelt the title wrong but i can't sleep and im tired as hell.. lol

X-AWDriver · 07-21-2009, 07:07 AM

I wouldn't do it on a regular basis but with the 3.4 being a bit overbuilt form the factory you're probably ok.

Mud_Runner · 08-31-2009, 01:30 AM

i got a completely stock 3.4 its got 218,000 miles on it and ive never replaced the timin belt head gasket nothin the motor is completely stock excpet the alternator that is new ince i burned it up muddin. but i constaly rev mine up to 5.5 to 6,000 rpms and i have never had a problem wit my motor im the only guy in my area with a stock 4runner that will race ricers with turbos and beat the snot out of them all day long and i een have a fully cutom front bumper made out of 3/8 steel plate it weighs at least 150-200 lbs and im still beat the snot out of it without a problem.

Buhundred · 08-31-2009, 05:53 AM

Quote:

Originally Posted by Mud_Runner

i got a completely stock 3.4 its got 218,000 miles on it and ive never replaced the timin belt head gasket nothin the motor is completely stock excpet the alternator that is new ince i burned it up muddin. but i constaly rev mine up to 5.5 to 6,000 rpms and i have never had a problem wit my motor im the only guy in my area with a stock 4runner that will race ricers with turbos and beat the snot out of them all day long and i een have a fully cutom front bumper made out of 3/8 steel plate it weighs at least 150-200 lbs and im still beat the snot out of it without a problem.

I would replace that T-belt right NOW! Yeah, the 3.4 will beat ricers. My dads somehow outran a Nissan Armada.

I've heard that 3.4's don't really like to be revved. But yeah like someone else said they are overbuilt from the factory. I wouldn't let it bounce off the limiter for too long though.

904_runner · 09-04-2009, 09:50 AM

bouncing off the rev limiter is the best though.....

vital22re · 09-04-2009, 09:02 PM

does that thing have vtech?

904_runner · 09-04-2009, 09:06 PM

Heck yea man..

Along with my super light, titanium, ported and poslished, aeronautical, nasa approved, custom, hybrid, antimicrobial, anti bacterial, shiny, superchager!!!!!!

vital22re · 09-04-2009, 09:23 PM

but you dont have 3 angle valve grind like i do. Adds 20 hp. Also, are you running dyno hybrid full synthetic. If you are, you can run 8k rpm all day. Just so you know.

okay all kidding aside, as long as you're not reving to 5k in neutral should be okay and as long as you're not pinning the needle for more than you need to should be safe.

89934runr · 09-08-2009, 10:40 PM

Define 'revs'? I can put mine on the limiter all day, as the blower loves pushing it there & honestly, it just sounds great.

BUT- you're asking for trouble due to two main factors:

1. The factor rod hardware doesn't like revs, nor do the rods for that matter.
2. The valvesprings are pretty much done at 5500rpm anyway, and frequently hitting that # greatly shortens their life.

If you want to spin it a bunch, build some heads & get some good rods. Then never look back.

Jeff

07-21-2009, 01:21 AM	#2 (permalink)
904_runner Registered User Join Date: Mar 2008 Location: Chico, California Posts: 3,782	crap i know i spelt the title wrong but i can't sleep and im tired as hell.. lol __________________ Mike 1990 4runner: 3.4 swapped, 5-speed, sas'd, Rear leaf swap, Locked, 5.29's, 39.5" iroks on Beadlocks, Armor'd Longfields, Duals coming soon: My build thread http://www.yotatech.com/f152/904_run...thread-158746/ http://www.treadlightly.org/ http://www.pirate4x4.com/tech/billav...ery/index.html

07-21-2009, 07:07 AM	#3 (permalink)
X-AWDriver Contributing Member Join Date: Sep 2003 Location: Littleton,CO Posts: 10,174	I wouldn't do it on a regular basis but with the 3.4 being a bit overbuilt form the factory you're probably ok. __________________ '99 4Runner Highlander 4wd E-locker,rear diff and deckplate mod * 265/75/16 Nitto TerraGrapplers * Yakima Load Warrior rack * clear corners/signals * Tacoma skidplate * Silverstar lamps/fogs Alpine CDA-9831,Bazooka EL Series 250w amp,MTX 10" sub

08-31-2009, 01:30 AM	#4 (permalink)
Mud_Runner Registered User Join Date: Nov 2008 Location: Va Beach,VA Posts: 3	3.4 high rev i got a completely stock 3.4 its got 218,000 miles on it and ive never replaced the timin belt head gasket nothin the motor is completely stock excpet the alternator that is new ince i burned it up muddin. but i constaly rev mine up to 5.5 to 6,000 rpms and i have never had a problem wit my motor im the only guy in my area with a stock 4runner that will race ricers with turbos and beat the snot out of them all day long and i een have a fully cutom front bumper made out of 3/8 steel plate it weighs at least 150-200 lbs and im still beat the snot out of it without a problem.

09-04-2009, 09:50 AM	#6 (permalink)
904_runner Registered User Join Date: Mar 2008 Location: Chico, California Posts: 3,782	bouncing off the rev limiter is the best though..... __________________ Mike 1990 4runner: 3.4 swapped, 5-speed, sas'd, Rear leaf swap, Locked, 5.29's, 39.5" iroks on Beadlocks, Armor'd Longfields, Duals coming soon: My build thread http://www.yotatech.com/f152/904_run...thread-158746/ http://www.treadlightly.org/ http://www.pirate4x4.com/tech/billav...ery/index.html

09-04-2009, 09:02 PM	#7 (permalink)
vital22re Registered User Join Date: Feb 2006 Location: kirkland washington Posts: 679	does that thing have vtech? __________________ 92 toyota truck 3.4 5spd 4.56 gears magna flow cat and muffler2 1/4 piping isr mod to intake 1.5 bjsfront add a leafs and 2inch lift shackles rear rancho shocks all around sitting on 265/75/r16 nitto terra grapplers

09-04-2009, 09:06 PM	#8 (permalink)
904_runner Registered User Join Date: Mar 2008 Location: Chico, California Posts: 3,782	Heck yea man.. Along with my super light, titanium, ported and poslished, aeronautical, nasa approved, custom, hybrid, antimicrobial, anti bacterial, shiny, superchager!!!!!! __________________ Mike 1990 4runner: 3.4 swapped, 5-speed, sas'd, Rear leaf swap, Locked, 5.29's, 39.5" iroks on Beadlocks, Armor'd Longfields, Duals coming soon: My build thread http://www.yotatech.com/f152/904_run...thread-158746/ http://www.treadlightly.org/ http://www.pirate4x4.com/tech/billav...ery/index.html

09-04-2009, 09:23 PM	#9 (permalink)
vital22re Registered User Join Date: Feb 2006 Location: kirkland washington Posts: 679	but you dont have 3 angle valve grind like i do. Adds 20 hp. Also, are you running dyno hybrid full synthetic. If you are, you can run 8k rpm all day. Just so you know. okay all kidding aside, as long as you're not reving to 5k in neutral should be okay and as long as you're not pinning the needle for more than you need to should be safe. __________________ 92 toyota truck 3.4 5spd 4.56 gears magna flow cat and muffler2 1/4 piping isr mod to intake 1.5 bjsfront add a leafs and 2inch lift shackles rear rancho shocks all around sitting on 265/75/r16 nitto terra grapplers

09-08-2009, 10:40 PM	#10 (permalink)
89934runr Registered User Join Date: Apr 2006 Posts: 283	3.4 revs Define 'revs'? I can put mine on the limiter all day, as the blower loves pushing it there & honestly, it just sounds great. BUT- you're asking for trouble due to two main factors: 1. The factor rod hardware doesn't like revs, nor do the rods for that matter. 2. The valvesprings are pretty much done at 5500rpm anyway, and frequently hitting that # greatly shortens their life. If you want to spin it a bunch, build some heads & get some good rods. Then never look back. Jeff __________________ 93 4 Runner / 3.4 swap / R151F swap / cash swap / 33s/ SDORI 1.5 BJ spacers / OME 900s

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