CIMRI

Hi,

I look at the engine and saw On the combasion camber (underhead) is a notch/scoop . But I am not sure that is in right way installed. Should the notch look to the exhaust port or to the near the carbroteur. I can not remember how was it??

thnx

handpiece

It is direction carburetor.

Thanks.

handpiece

Technical Data

Displacement : 2.09㎤

Maximum Power : More Than 1.67hp

Bore : 16.26mm

Stroke : 16.80mm

Ports Nr : 5

Piston Type : CNC

Crankshaft : 11mm

Crankshaft Type : Turbo SG

Glow Plug Type : Turbo

*Crankshaft Hard Coated + Full Ceramic Bearing(GS5 Class)

EdwardN

iTrader: (1)

Hey handpiece. I read you post and it is ammesing number you pull out from engine-1.75 ps (I guess ps is stand for HP) . The only thing is bothering me how did you determinate there was over 1.75 ps if you don't run on Dyno? What was createria to get that number? Lap time? Sound level? ... Marketing?
Are you fooling people around?

Edward

SalvadoriRacing

I 2nd that......

CIMRI

Hi Edward,

I thing, I can agree handpiece spec's. I have the Gr racing OZ TZ team version . And I have a OZ speed spec II. too. The Gr racing Oz Tz is a litte bit faster than the spec II. I tested both engine with %16 fuel and ospeed 1040 pipe. Same car gearing etc...
If the ozspeed engine specs on the website is right( 1.7 hp) I can say that the Gr racing engine is about 1,75 hp. I have with the Gr racing engine about 0,1-0,2 better lap times . Our local track is large european style track!
But this not a dyno test. But for me is the best test on the track.

EdwardN

iTrader: (1)

Hi CIMRI.

If I got your idea right that 0.1-0.2 secomd on laptime is equal 0.5 HP? Is that right?

CIMRI

of course not! I can only say (this is only my experience) it is faster than spec II . The specs from osspeed is for me only a start point for a comparison. maybe ,the gr engine is 1.80 hp or 1.71 hp???

gansei

yes! you are right!!!

maybe it's power will be 1.8~1.9...

CIMRI

Hi Handpiece

How often did you guys change the conroad? The conroad is a little thin than the original because of the modification. thatswhy I am worry about my conroad life. Pls let me now

ps. You have a pm

thnx

gansei

os conrod is rather more weak than novarossi

so i changed OS conrod Per 1 gallon(4 liters)

CIMRI

Did you guys changed right after break-in ?

gansei

no!!! only per 1 gallon

CIMRI

thnx for promt answer.

kewdawg

iTrader: (3)

Hey, guys. I have the 3 port. It holds it's tune, makes a lot of power and runs through it's powerband smoothly! I'm very pleased with it's performance! I'd like to get a another engine as a back up.