84mm GE GSR block
B16A head with skunk valvetrain and mild port work
ITR IM
RLD mani
Hybridynamics IC piping
Precision 600hp IC
tuned on hondata

turbo is a T3/60-1 Ball bearing with S comp cover and .63 ar stage III exhuast side



thanks to all the guys at hybridynamics. denis for the tune, Jay for the motor assembly and eric for all the work to get it back in the car so I could race at a local event last friday.

 

wheel spin looks fun

nice times though

 

Lovin it Boost FTW I ask everyone but post an in car video of you driving it please!

 

vid!

 

Looks like you need to clean up the tune past 6200 rpms.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mtber &raquo;</TD></TR><TR><TD CLASS="quote">Looks like you need to clean up the tune past 6200 rpms.
</TD></TR></TABLE>

What PSI and octane was this made on?

 

What fuel pump?

 

whats with the huge drop off after vtec and full boost?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RTW DC2R &raquo;</TD></TR><TR><TD CLASS="quote">whats with the huge drop off after vtec and full boost?</TD></TR></TABLE>

we are thinking boost controller and too small of a turbine housing and wastegate. this was 25psi and 112 sunoco

 

Any fuel pressure issues?

 

.63 ar seems to be spoolling up late! any plans to change to a larger ar on the exhaust side and maybe and clean up the top end? what cams are you using?

 

Also wondering what cams are in there. Never really seen hp peak above 8500rpm. Looks like bc is causing the wavering on the top end.

 

nice numbers you put down

 

Looks scary Sam.

HybridDynamics

 

Pics or ban.

Vids too.

 

Turbo ITR dyno sheet. what do you guys think?

Get it retuned

 

damn. dangerously sick looking lol

yeah. after vtec the graph doesnt look smooth lol

 

they are the stock ITR cams. we are thinking the waviness above vtec is the boost controlle and small turbine housing.

it acutually has plenty of fuel. that is roughly a 12:1 af ratio on racegas up top and we pulled a lot of fuel the last few pulls

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18CXr &raquo;</TD></TR><TR><TD CLASS="quote">Turbo ITR dyno sheet. what do you guys think?

Get it retuned</TD></TR></TABLE>

why do you say that

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BoostR41 &raquo;</TD></TR><TR><TD CLASS="quote">

why do you say that</TD></TR></TABLE>

more than likely the big drop in power and the lumpiness at higher rpms

 

why do you say that


Insufficient turbine housing will not cause those ripples; either too rich, not enough timing, boost controller issues or all of the above...

I.E. "get it retuned"


I've made 515whp//378ft/lbs (Dynojet) [100 unleaded] on a stock bore/stroke/sleeves/head/cams B18C1 with 9:1 cr and a t3/60-1 .63ar @26psi.

See below plot (NOTE: was on a Mustang MD-500 which is 15ish% lower than a 248C)

15psi versus 24psi
Please review the smoothness of the plot(s)



Not trying to bench/internet race, just stating that a smoother curve is needed in your setup

 

^ Butter smooth...

 

B18CXr, details on your setup?

 

not my setup, a customers...

B18C1 top/bottom

Mahle 9:1 (81.5mm)
Eagle rods
Toda valve springs
Edelbrock intake mani
Full Race Stage 2 (non AC)
RC 750cc (maxed)
intank 255lph
AEM EMS
OEM dizzy/coil/wires/etc...

 

it's 12:1 from boost to rev limit, reading the plugs the timing is perfect and boost control is an issue. you can hear the compressor surge. it is the small housing.

mustang dyno sheets are always 100% smooth it is the way they work. also I dont see 515whp on that sheet all I see is 430whp