just measured the car with following setup:

 

greddy td05-16g and external wastegates

pentroof manifolds

555cc inj.

lightened flywheel, stock crank pulley

maf removed, double free intake( = pressure-temp conversion)

haltech standalone

stock cams

stock heads

jun piston kit and conrods

hks evc boost controller

 

400 miles on engine.

pump gas.

 

 

at 1.5 bar ( 22 psi): 570 din-hp at crank and 67Nm torque= 49 pound-foot

engine temperatures and inlet charge temp perfectly stable at this boost.

(the engine will certainly accept additional small increases in boost)

 

had hoped on about 650 crank hp, so some deception...

after braking in, will probably up the boost some more to achieve 600+.

 

The questions:

 

-will breaking in of forged engine release some hp?

 

-will judicious choice of cams help me out on power output without to much loss in lower revs?

 

- a small puzzle also:

boost controller off: 28psi ( too much , charge heats to 60°C)

boost controller on only a max of 22psi is achieved.

how is this possible as hks claims up to 35psi boost level??

 

thank for the advice.

 

greetz

rik

belgium

i would say that is the maximum and maybe over of what you can get with 555cc injectors...

Do yu have stock fuel pressure?

Change the injectors - 555s are too small for your setup. At those power figures they must have been almost maxxing out.

 

What intercoolers do you have? You will release quite a bit of power with uprated cams yes - also consider porting the head, possibly also larger valves. Ferrea do a set for the Z32.

 

As far as the boost controller goes - are you sure you've plumbed it in correctly? Sounds like you may possibly have the vac lines the wrong way round on the actuators...

-will breaking in of forged engine release some hp?

 

 

 

Yes running in makes a big difference !! read this link

http://www.mototuneusa.com/break_in_secrets.htm

And it does work , even though it sounds scary !!

Yes running in makes a big difference !! read this link

http://www.mototuneusa.com/break_in_secrets.htm

And it does work , even though it sounds scary !!

 

Hi Karlosg,

 

How many people do you know that have run an engine in this way and with what results,i'm about to run an engine in myself and was sent that same link but am unsure of how it would work out and dont have the money to build another engine if it dies,lol

 

Thanks in advance

 

Paul.

Paul.

 

The logic is sound so I am told by some pretty good engineers, but talk is cheap mate.

After reading the link I have to agree to his break in method.

 

I myself have built and ran in or tested on a dyno hundreds of engines and right from when I was an apprentice I was told "load the ****er up"

 

Obviously you need to get to temp first, but the methods of loading have been very different from towing vans to loading up the dyno by turning up the water pressure.

 

You don't need to go over the top but if its going to go bang then it will go earlyer rather than later.