Blew my motor - sohc guys read this

[D-X-Factor]

Well after boosting my D16y7 non-vtec for 8 months at 14psi, the piston rings in the #4 cylinder gave up. For the SOHC guys here are a few notes and experiences that I observed:

- There is no substitue for a good tuner!!!!

- The Honda stock fuel injectors can hold up to 10psi at 90psi of fuel pressure

- The water injection system really works well in reducing intake temps and detonation especially when you are spraying a 50/50 mixture of methanol(not ethanol) and water.
- The stock ignition system is all you will need when running a JRSC.

- At 14psi I did not experience detonation until 6.2K - redline

- Dyno numbers indicated 172.6 HP and 137.2 lb/ft of torque at 14 psi and 150.1 HP and 127.2lb/ft @ 9psi

Other mods included:
4-1 Kamikazi header
Jackson Racing upgraded fuel pump
Jackson Racing water injection intercooler system with custom water reservoir
Custom exhaust
Magnacore ignition wires
MSD distributor cap
MSD external ignition coil
MSD 6BTM Boost Timing Retard Module
etc.


Conclusion: Stay at 10psi or lower....happy boosting guys.

Mario

[-TJ]

Sorry to hear that...makes me feel good about my SOHC though! Can I hammer you with a bunch of questions as they are pertinate to my setup?

What size exhaust where you running?
Was the head stock?
Was the bottom end stock?
What pulley ratio were you running to get 14psi? What elevation were you at?
No other fuel management other than what's mentioned - ouch.

-TJ

[D-X-Factor]

<BLOCKQUOTE><font size=2 face="Verdana, Helvetica, sans-serif">quote:</font><table border="0" width="90%" bgcolor="#333333" cellspacing="1" cellpadding="0"><tr><td width="100%"><table border="0" width="100%" cellspacing="0" cellpadding="2" bgcolor="#FF9900"><tr><td width="100%" bgcolor="#DDDDDD"><font size=2 face="Verdana, Helvetica, sans-serif"><font size=2 face="Verdana, Helvetica, sans-serif">Originally posted by -TJ:
Sorry to hear that...makes me feel good about my SOHC though! Can I hammer you with a bunch of questions as they are pertinate to my setup?

What size exhaust where you running?
Was the head stock?
Was the bottom end stock?
What pulley ratio were you running to get 14psi? What elevation were you at?
No other fuel management other than what's mentioned - ouch.

-TJ</font></font></td></tr></table></td></tr></table></BLOCKQUOTE>
What size exhaust where you running? 2 1/4 exhaust
Was the head stock? Stock
Was the bottom end stock? Stock
What pulley ratio were you running to get 14psi? JR crank pulley and a 3.2"(I think?) SC pulley
What elevation were you at? about 100ft. above sea level
No other fuel management other than what's mentioned? Field's AFC
ouch-is correct...but I am surprise the motor held up so long to all the abuse.

By the way TJ, what compression are you running and did you have endyn mod your SC and your motor or just the SC?
Nice numbers.

Mario

<font color="#a62a2a" size="1">[ June 05, 2002 05:41 PM: Message edited by: D-X-Factor ]</font>

[-TJ]

My CR is 9.61:1.
Endyn did the motor and the blower.

Thanks,
-TJ