BRian Crower 264 camshaft results 1JZGTE.

[BlakeNZ]

The car is a jzz30 soarer with stock turbos,3" exhaust, twin dump pipes, aftermarket intake pipes, auto trans, supra 430cc injectors. Motor is relatively low km, and in very good condition.
The car made 257 hub kW DIN(18psi) on the speed tech dyno in April. Recently it had BC 264 degree camshafts installed. The inlet side was fine, but the exhaust side shim clearances were out of spec, so needed new(thicker) shims. We bought cam gears for it too.
Anyway, it made 283kW today, at 18psi, and then adjusting the cam gears ( 2 degrees advanced on the intake, 2 degrees retarded on the exhaust side) yielded another 4.6kw, so a total gain of over 30kW at 18 psi.
This was more than we expected.

[Dell'Orto]

Awesome stuff - got any dyno plots?

[BlakeNZ]

I'll ask the owner(Evan) if he can post them up. Though dyno plots with an auto trans and unlocked convertor can sometimes be a little hit and miss in the lower rev range..

[the fallen303]

holy crap blake that is awesome! can you send me some finer details? might be something to look into for my setup at some point. was it mainly a gain in high end power, or did it gain quite a bit in the mid end too? some dyno plots would be great mobile numbers still the same

[Mr Ree]

Great results Blake, Im sure Evan is stoked.

Cams are something I really want to help my engine breathe better, but with the dissy gear on the ext cam, its a nightmare to fine many options.

[strx7]

Regrinds are the go Reith, Do you want a camshaft to send away and get reground and then send me your existing camshaft when its out of the motor (in however many months/years that maybe)?

[Mr Ree]

I was actually thinking about a regrind, given the dissy gear etc.

Thanks alot for the offer Shane, I will most lkely hit you up once I finish allmy current projects, and have some spare funds to throw at the top of the motor

[BlakeNZ]

ok- today we dyno tested the 2nd set of brian crower camshafts, once again 264 degree cams. The car was a soarer 1jzgte manual with a T60 masterpower turbo with a .68 rear housing i believe. The "tuning"(and i use that word lightly) was done with a SAFC 2.
The "before cams" dyno yielded 228hub kW at 12psi, and 265 hub kW at 16psi. The "after" dyno saw 242kW at 12psi and 280kW at 16 psi. Boost was wound to 18psi, but only gained another 5kW, which seemed strange. the owner thought that the smaller exhaust housing and down pipe may have been strangling it.
The boost starts exactly the same as with factory cams, but the owner describes it as " comes in harder" .

[Rookie]

Is it just me or do these seem pretty poor numbers for the amount of work that has been done to these motors?

[strx7]

they have no headwork done, and the 2nd one sounds basically standard apart from the factory twins being swapped out for a smallish single

[Lith]

Is it just me or do these seem pretty poor numbers for the amount of work that has been done to these motors?

1JZGTEs have never blown me away in terms of making power vs mods vs boost level, though what they seem to give away in terms of efficiency they seem to make up for in strength (wind up the boost until you make the power/torque you want). I think the S-AFC is probably giving away a lot in terms of tuning, a proper ECU should make quite a bit of difference - either that, or I will be shocked... I made more power with less boost on a smaller turbo on an unopened RB25 with the shit stock cast manifold.

In regards to the stock turbo/Auto setup - that is VERY impressive imho. You lose a reasonable amount of power through the trans, and again... stock turbos!

[Dell'Orto]

S2 RB25 though, which seem to make a mockery of the early ones

[BlakeNZ]

rookie dude, have you seen the size of the compressor wheels on a stock turbo 1jz? tiny, mate.
Anyway, i'm not here to fudge numbers to impress people- i'm just trying to give clear results of our research,so that we can all learn,or make our own judgements on modifications.

[BlakeNZ]

so how can i post a picture on this forum if there is no "paperclip" or "attachment" icon to click on?

[Dell'Orto]

Host the picture somewhere like Photobucket, and use the tags to post it

[BlakeNZ]

i don't know how to do that sorry. so i've emailed the dyno graph to you! you can look at them all you like, and keep them to yourself. Or you can share them with the world if you feel generous

[Dell'Orto]

Interesting result! Surprising how its basically lineball with the stock curve until 4ish, would have thought it might have dropped a touch. Though I see the torque did drop a bit down low.

[Dell'Orto]

[e30-323ti]

What are we looking at here....

That can't be before / after cams....

Just looking at my old dyno plot, stock 1JZ 12psi + FMIC + 3" zorst.

12psi boost was by 3000rpm.
3000rpm = 160hp / 280lbft
4000rpm = 230hp / 290lbft
5700rpm = 292hp / 270lbft (peak hp)

Not comparing numbers (as all dyno are different blah blah blah), but more the shape of the curves (power, torque & boost) are drastically different to those above.

Will scan mine in (again) and post if you're interested.

[Lith]

I suspect from the massive amount of lag there that Blake has shared the dyno plot from the car running the Masterpower turbo. Either that or the stock twins have been met Frankenstein.