[SupraTT10]

Hey guys just got a few questions

how much power can the stock 2rz/3rz-fe motors handle?

when building the short block for higher boost motors do they need to be sleeved?

When sleeved what size pistons are guys running?

 

[Greg_Canada]

They dont need to be sleeved, they are cast iron closed deck blocks.

Stock motor 6-8psi. 200-230rwhp

Stock with arp studs and MHG 18psi. 350-400rwhp

Rods, pistons, arp and mhg, jbwelding freeze plugs, +++ 25psi.sky is the limit.

 

[SupraTT10]

oh thanks man, just a few more questions.

Do the 2.4 and 2.7 share the same head?

is it worth swapping out the 2.4 for a 2.7 for quicker spooling and better power band?

 

[hamish_18]

Same head. Just different blocks. 3rz has a longer stroke to make up the difference. I am 18psi stock engine, putting down 300/332 currently. It's my DD too. Have about 15k with the current setup. No problems yet. *knocks on wood..

 

[Greg_Canada]

oh thanks man, just a few more questions.

Do the 2.4 and 2.7 share the same head?

is it worth swapping out the 2.4 for a 2.7 for quicker spooling and better power band?

The heads are usually the same, depending on year. Same "architecture"
There were 4 port and 8 port heads, the change happened around 99-00. 8 port heads are alittle better for boosting. Both will be good so having a 4 port is not a deal breaker. Some heads are set up for distributor, coil packs, etc.

The 2.7 is better if you plan on low boost. But the 2rz bottom end is good to 18psi safely stock, where a 3rz bottom end is only good to about 14-15psi safely. You will make more power, safer, on a 2rz. The 3rz is only better if you are upgraded to forged rods/pistons.

 

[flatboy]

My motor is stock but hg and studs. 15psi on meth all day long.

 

[SupraTT10]

The heads are usually the same, depending on year. Same "architecture"
There were 4 port and 8 port heads, the change happened around 99-00. 8 port heads are alittle better for boosting. Both will be good so having a 4 port is not a deal breaker. Some heads are set up for distributor, coil packs, etc.

The 2.7 is better if you plan on low boost. But the 2rz bottom end is good to 18psi safely stock, where a 3rz bottom end is only good to about 14-15psi safely. You will make more power, safer, on a 2rz. The 3rz is only better if you are upgraded to forged rods/pistons.

My motor is stock but hg and studs. 15psi on meth all day long.

What metal hg are you guys running?

 

[671taco]

Cometic...search for Luis corujo on Facebook or paradise racing. He's hardly ever on this forum anymore.

 

[toycoma98]

13 PSI stock engine. Turboed for 6 years now. Daily driven.

I see luis on facebook a lot, search for 2rz/3rz turbo community.

 

[MatosTaco]

Luis from Paradise Racing has made 1000+ hp on several 2/3RZ motors. I believe his personal drag Celica runs a 1200 hp 2RZ.

 

[tacomatic1]

I was pushing 21 psi with stock hg and studs.

Tune is very important.

 

[lastresort]

Wow. I thought i was pushing it at 15 psi.stock gasket and bolts. I have a metal gasket and studs just need to get a chain and stuff to do while I have it apart.

I was pushing 21 psi with stock hg and studs.

Tune is very important.

 

[Chris D.]

Same head. Just different blocks. 3rz has a longer stroke to make up the difference. I am 18psi stock engine, putting down 300/332 currently. It's my DD too. Have about 15k with the current setup. No problems yet. *knocks on wood..

How many miles are on your truck now C?

 

[hamish_18]

Around 148k I believe

 

[Jon671]

13 PSI stock engine. Turboed for 6 years now. Daily driven.

I see luis on facebook a lot, search for 2rz/3rz turbo community.

What fuel pump are you running while pushing 13psi? Fuel pressure regulator?

 

[toycoma98]

What fuel pump are you running while pushing 13psi? Fuel pressure regulator?

URD Walbro 190 lph fuel pump. Had stock regulator which worked good but changed it to Turbosmart FPR800 regulator with gauge. 440cc injectors. URD maf calibrator to control fuel.

 

[Jon671]

URD Walbro 190 lph fuel pump. Had stock regulator which worked good but changed it to Turbosmart FPR800 regulator with gauge. 440cc injectors. URD maf calibrator to control fuel.

Do you know if elevation would have any effects? Out here in colorado

 

[Flowstate]

13 PSI stock engine. Turboed for 6 years now. Daily driven. I see luis on facebook a lot, search for 2rz/3rz turbo community.

13 PSI stock engine. Turboed for 6 years now. Daily driven. I see luis on facebook a lot, search for 2rz/3rz turbo community.

Hey, are you running a stock 3rz-fe? I’m about to boost mine and I’m doin some research