Author Topic: 3RZ Build 400whp minimum goal ;) (Read 16258 times)

Nation · « **on:** Apr 07, 2015, 02:55:40 PM »

Well, I have a 3RZ in the back of the runner right now. I'll be tearing it down I the next few days and sending it to the machine shop. I've NEVER BUILT A MOTOR Before... This Is Going To Be fun!

Nation · « **Reply #1 on:** Apr 07, 2015, 03:03:09 PM »

Still getting a parts list together.

H8PVMNT · « **Reply #2 on:** Apr 07, 2015, 03:05:28 PM »

What's this one going in?

Nation · « **Reply #3 on:** Apr 07, 2015, 03:12:21 PM »

98 tacoma. 4x4 33" tires, stock gearing

H8PVMNT · « **Reply #4 on:** Apr 07, 2015, 03:26:45 PM »

Sleeper then...

dcg9381 · « **Reply #5 on:** Apr 09, 2015, 06:02:56 PM »

You didn't smoke the other motor did you? What are the plans for this one?

Nation · « **Reply #6 on:** Apr 09, 2015, 07:57:27 PM »

My motor is still running strong!
This is going into a friend's 98 tacoma. I'll have some pictures up this weekend. As far as parts... still doing research. I'm open to opinions on parts. Particularly the connecting rods.. will be running up to 25 psi.

twistedtoy92 · « **Reply #7 on:** Apr 09, 2015, 08:04:29 PM »

Eagle Rods bud!

Nation · « **Reply #8 on:** Apr 09, 2015, 08:42:21 PM »

Quote from: twistedtoy92 on Apr 09, 2015, 08:04:29 PM

Eagle Rods bud!

That's what I said.. then I heard they were made in china

twistedtoy92 · « **Reply #9 on:** Apr 09, 2015, 08:59:41 PM »

My buddy runs them with Arias pistons in his 98 eclipse and its putting down 700 AWHP on a mustang dyno on pump gas and w/m on 43 psi... the rods have 30,000 miles on them with no issues.

OVRAROK · « **Reply #10 on:** Apr 09, 2015, 09:23:42 PM »

pauter, I think they make a set of rods for 3rz

dcg9381 · « **Reply #11 on:** Apr 10, 2015, 12:02:38 PM »

Might ask LCE about the rods. I think you're focusing on the right spot with the 3rz. Ask about removing the balance shafts too.
Have the thing decked with the front cover on it and make sure it's decked to the correct resolution for a metal head gasket. The step up from MLS is o-ringed, which requires that someone know what they're doing at the machine shop and probably that particular motor.

I don't think you'll need 25psi to get to 400hp.

What are you doing for EFI?

twistedtoy92 · « **Reply #12 on:** Apr 10, 2015, 03:46:12 PM »

It will need at least 20 psi with aggressive timing to achieve 400 WHEEL HP. You'll want H beam rods, forged 8.5:1/9:1 pistons, ARP everything, cometic HG, 1000cc injectors, adjustable timing gear, big cams, porting/gasket matching, and custom manifolds to get this done properly... Either URD piggyback or Megasquirt management...

MRHilux87 · « **Reply #13 on:** Apr 10, 2015, 10:01:54 PM »

Quote from: twistedtoy92 on Apr 10, 2015, 03:46:12 PM

It will need at least 20 psi with aggressive timing to achieve 400 WHEEL HP. You'll want H beam rods, forged 8.5:1/9:1 pistons, ARP everything, cometic HG, 1000cc injectors, adjustable timing gear, big cams, porting/gasket matching, and custom manifolds to get this done properly... Either URD piggyback or Megasquirt management...

All of this with a damn good tuner. You could have all the perfectly built engine for it but not make power or blow it up without it tuned right.

twistedtoy92 · « **Reply #14 on:** Apr 10, 2015, 10:11:39 PM »

Quote from: MRHilux87 on Apr 10, 2015, 10:01:54 PM

All of this with a damn good tuner. You could have all the perfectly built engine for it but not make power or blow it up without it tuned right.

Of course, its ALL in the tune. Having an over built engine just gives you that much more piece of mind.

Nation · « **Reply #15 on:** Apr 10, 2015, 11:17:08 PM »

Oh yeah . No risks taken on this one.. Im going to be installing the MS ecu soon for my 3rz so well get some good practice in. I have a friend who is a great tuner. Hes gonna help me out and try and teach me a few things.

dcg9381 · « **Reply #16 on:** Apr 13, 2015, 07:17:04 AM »

Quote from: twistedtoy92 on Apr 10, 2015, 03:46:12 PM

It will need at least 20 psi with aggressive timing to achieve 400 WHEEL HP. You'll want H beam rods, forged 8.5:1/9:1 pistons, ARP everything, cometic HG, 1000cc injectors, adjustable timing gear, big cams, porting/gasket matching, and custom manifolds to get this done properly... Either URD piggyback or Megasquirt management...

Have a look at how the dynos are working out over on customtacos. They're reaching 350 hp on "stock" motors (custom tuned) - 400 hp with simple intakes and other mods... Apparently the 2rz/3rz loves boost.

http://www.customtacos.com/forum/13-performance/141796-96-2rz-turbo-dynoed.html

If he's really after 400hp, you'll need a turbo that's efficient at that boost level and airflow (HP). If he doesn't need 400hp, no reason to get a turbo sized like that as it costs you HP on the back side of the curve...
One listing of 434hp 368tq @ 18PSI... I believe that's on minimal internal mods.

2 feathers · « **Reply #17 on:** Apr 22, 2015, 03:25:54 PM »

These little motors love boost trust me!

H8PVMNT · « **Reply #18 on:** Apr 22, 2015, 03:32:08 PM »

Look at the size of that vacuum cleaner!

Nation · « **Reply #19 on:** Apr 22, 2015, 03:40:01 PM »

What kind of boost numbers are safe for a Stock 3rz? Stock head studs as well

2 feathers · « **Reply #20 on:** Apr 22, 2015, 03:57:24 PM »

im running 10lbs of boost with a 58mm pulley. The supercharger boost is limited because of the chance of an over rev on the blower.

Nation · « **Reply #21 on:** Apr 22, 2015, 04:03:11 PM »

Is that on stock internals and with stock head studs?

2 feathers · « **Reply #22 on:** Apr 23, 2015, 06:42:59 AM »

Quote from: Nation on Apr 22, 2015, 04:03:11 PM

Is that on stock internals and with stock head studs?

All stock with no issues

Nation · « **Reply #23 on:** Apr 23, 2015, 11:15:16 AM »

Looks like I'll be cranking the boost up on my current set up to 10 psi

I'm @ 4.5psi now. Stock computer/tune and I'm putting down 165hp and 200lb ft tq to the floor. Not 5 op shabby for 4.5psi

Nation · « **Reply #24 on:** Apr 23, 2015, 12:01:31 PM »

Quote from: 2 feathers on Apr 23, 2015, 06:42:59 AM

All stock with no issues

How long have you been running it at 10psi?

2 feathers · « **Reply #25 on:** Apr 23, 2015, 01:56:38 PM »

Two hard years of rev limiting snow wheeling and a ton of crawling. Be sure you have a good wide band afr gauge so you dont lean it out. I have a piggy back computer that runs a 5th injector. They need more fuel than the stock system can provide.

Nation · « **Reply #26 on:** Apr 23, 2015, 02:02:05 PM »

I've got a megasquirt ecu to install here ND a wideband as well.

Nation · « **Reply #27 on:** Apr 23, 2015, 04:57:42 PM »

2 feathers, how many miles on the motor before you strapped that SC on it?

2 feathers · « **Reply #28 on:** Apr 30, 2015, 06:42:41 AM »

120k still runs like a champ.

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