Compared 1ufze-tt Too Rb26dett

[Stixbnr32]

Ran up my friends 1UZFE-TT on the same dyno as I did my forged RB26DETT.

He pulled an impressive 372KW ATW (I did 384kw) in his Toyota Hiace VAN with a stock bottom end (Has head work and turbo cams).

He had about an extra 100NM but only made 200kw 300RPM quicker than my car and I pull right up until 7800rpm his stops at 6500.

I thought comparing the two engines was going to be interesting and it was.

Impressive numbers from the stock bottom end....might be abit more in it with a new fuel pump.

Edited May 11, 2015 by Stixbnr32

[scotty nm35]

Must be an early model 1UZ, the later ones let go around 300kw as I found out the hard way.

[Stixbnr32]

Yeah early 1UZFE with the thicker rods. I am interested to see how long she holds together at this power.\

Just incase you want to see the run - https://youtu.be/gnEuvHUV54k

[GTSBoy]

There's a reason for the lack of early power that you'd expect from the extra litre. Have you seen the cam lobes on a 1UZ? Absolutely tiny.

Edited May 11, 2015 by GTSBoy

[Stixbnr32]

Really? I know he got a set of Kelford turbo cams for the setup so I am not sure what difference that would make.

I forget what the specifications were.

[GTSBoy]

Well, the stock ones have got about 3mm of lift and about 190 degrees of duration (jokes, but not far wrong!), so even an aftermarket cam is not likely to be too big. Basically, Toyota didn't need to put much cam in the engine at all to achieve the 206kW target, so they didn't.

[1kr33steven]

Not sure what you guys are doing wrong but the old 1UZ is one tough engine ive spoken to plenty of people who would even say pound for pound its one of the best engines round. when visiting my bro in Sydney last we went out to the drags and saw a street car (yea yea registered but not practical to drive) pull a low 8 with a stock bottom end 1UZ

Anyway interesting result and in a Hiace van im sure its a handful

Cheers,

[tridentt150v]

Basically, Toyota didn't need to put much cam in the engine at all to achieve the 206kW target, so they didn't.

Something to do with the intended use perhaps? You can do insane things and swim against the current but eventually the roots of a motor can't be ignored IMO.

[GTSBoy]

Yuh, big smooth motor for big smooth luxury cars. Not intended to do anything else. Fact that it's as tough as nails has nothing to do with its native breathing capacity.

[Leroy Peterson]

saw NZ plates and mention of Kelford cams and then eeeeverything started to fall into place...

[Stixbnr32]

9.6mm lift and 264 duration intake and exhaust are the specs of the turbo cams.