dyno results! turbo wasser

marcotheturbosteamengine · Fri Sep 17, 2004 2:00 am

ive been making this turbo wasserboxer for 2 years and finaly got it dynoed, i found out on the dyno that my spring preasure on the seat of the valve is not enough, a can freely rev the motor to 8200 but with 15psi+ of boost the motor seems to valve flote but in a very strange way, as i increase boost the valve flote rpm becomes lower and lower respective of boost preasure, and a 26psi the motor hits a rev limit a 5900!!!!

so over the winter i will have to put bigger springs in so i can run 30psi@8200

the motor made 340bhp@5900 and 311ftLB@5250
the power starts at 4250 and hit the valve flote at 5900, but when i get it sorted it should go to 8000 as the power a 5900 was still going up!!

these are the specs of the motor

Displacement 2120cc Wasserboxer

Builder Max Morley

Crank 76.4mm Oettinger

Rods 5.4in Scat H-beams with oil hole caps.

Pistons 94mm RossRacing pistons(custom made 45cc dish!!).

Rings Total Seal

Cam/lifters WebCam 86b 114lc .474thou retarded 4deg lift with 39g 12mm stem lifters.

Heads/ valve train Stock reworked by Oliver konff single groove keepers, remmel HD outer with WBX inner, ally retainer, 911 swivel feet, 1.25 CB rockers, reworked, lightened, balanced, Berg Hd rocker shafts, Aircool.net Hd Ally pushrods.

Valves 45mm in, 40mm ex, Nimonic-90 valves 8mm stems.

Compression 7.5 to 1

Ignition MSD DIS-4, 4 MSD coil packs(coil-on-plug)Controlled by Wolf3D EMS every 125rpm.

Spark Plugs NGKs 8s.

Carburation 8 injectors Controlled by Wolf3D EMS every 125rpm.
Inlet Manifold/ turbo system 2in individle runners to a 2L plenum with a single 56mm Ford Cosworth throtalbody, 3in silicone hose to a chargecooler running to a Turbonectics T3/4 60-1 hybrid turbo .60in / .62ex 3in filter with a Mocal Oil scavenge pump

running 26psi of boost on regular pumpgas(no bull)

Exhaust 1.5/8 stainless turbo header(custom made) with a 3in exit

Flywheel Kep 200mm T4

Clutch Kep Stage2 with a Cb sprung 6 puck

Oil 76 orange stuff?

Oil Cooler Porsche 993 oil cooler

and quick thanks to everyone that helped me along the way.

Steve Arndt · Post by **Steve Arndt** » Fri Sep 17, 2004 7:03 am

Awesome man!! That is insane boost on pump gas.

Guest · Post by **Guest** » Tue Sep 21, 2004 12:33 am

Big congrats Marco, you must have been grinning like a cheshire cat!!! any piccies etc? Are you hitting the quarter next year?

TIMBERWOLF

Wally · Post by **Wally** » Tue Sep 21, 2004 11:06 pm

Amazing Marco; Saw a small pic of your car and engine in Volksworld. Nice to say the least!! Liked your wheels as well.

What size injectors are you running?
Do the second ones come in as extra or do they switch over to the bigger ones at a certain rev?

Thanks.

Regards,
Walter

vtec this · Post by **vtec this** » Sun Oct 24, 2004 11:13 am

WOW! that is awesome. I am interested in some more info on the WBX engine and the conversion to aircooled. I have posted on the forced induction forum, but was sent here to find out from marco...
any info would be great.
thanks

Post by **Piledriver** » Thu Oct 28, 2004 11:06 pm

Marcos beast is still water cooled... And awesome.

Being water cooled (and the nice squish area in his combustion chambers) likely has something to do with being able to push 26 PSI boost on regular...

Post by **Piledriver** » Tue Nov 30, 2004 4:55 pm

Marco... Quick back of the envelope CR calculation puts your CR at ~5.5:1... 45cc dish, 35cc chambers. ~5cc for deck (probably more like 2)
530cc/cyl...

(assuming you're still running those heads you posted the pics of...)

marcotheturbosteamengine · Wed Dec 01, 2004 12:54 am

45cc heads, 29cc in the heads, 0 deck, 40 thou gasket, 76 stroke, 94 piston, makes 7.5 to 1

Post by **Piledriver** » Wed Dec 01, 2004 2:18 am

Sorry Marco, I got the chamber volume wrong.

Thanks for the info!

DORIGTT · Post by **DORIGTT** » Sat Jan 29, 2005 2:00 pm

Hey marco,

What kind of recent developments have you made?

C'mon man we need updates!

Guest · Post by **Guest** » Sat Jan 29, 2005 5:07 pm

got evertything sorted now, so will be going together very soon and strait to the dyno, thing that have changed are
valve seat spring preassure is 170ftlb( before 90ftlb)
valve full lift spring preassure is 320ftbl( before 250ftlb)
the cam is now a web 86b/86c combo on 114lobes installed strait up.
and not running 1.4-1 scat lifters, i will proberbly gain .080-.100thou on valve lift ,
all these mods should take me to the 400-450bhp with 30psi of boost, but we will see!

marcotheturbosteamengine · Sat Jan 29, 2005 5:12 pm

sorry that was me, and i am using scat lifters
got evertything sorted now, so will be going together very soon and strait to the dyno, thing that have changed are
valve seat spring preassure is 170ftlb( before 90ftlb)
valve full lift spring preassure is 320ftbl( before 250ftlb)
the cam is now a web 86b/86c combo on 114lobes installed strait up.
and now running 1.4-1 scat lifters, i will proberbly gain .080-.100thou on valve lift ,
all these mods should take me to the 400-450bhp with 30psi of boost, but we will see!

coxy-ben · Post by **coxy-ben** » Thu Feb 17, 2005 9:20 pm

some pics ????