2 pyros

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Re: 2 pyros

Postby spencerdiesel » Thu Dec 31, 2015 8:06 pm

Whats the longest it's seen 1600 + for Eric?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

H1C/18

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw bottomed @ 3 turns, timing to the head/ >1/4”
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Minimum 60% WMO full time since Sep. 2018
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Re: 2 pyros

Postby RCCUMMINS89 » Thu Dec 31, 2015 8:22 pm

The 06? I've never been in it for over 5-6 seconds.......... it's nasty fast.


Now my RC with the old engine has seen 1800++++ (I've wrapped it around, probably to 2000+) for 5-10 seconds easy.
89 RC on shortened 92 diesel frame - NV4500 w/dual disc/4.10s on 37s. - Self built pump, "hot screw", lots of timing, True high volume low pressure lift pump, 62fmw/68/.7gated, 77lpm SAC Inj., Studs/O-rings,- 423/1220 Mustang - 11/16/2013 http://www.TheHungryDiesel.com full line dealer, if you don't see it please ask.
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Re: 2 pyros

Postby spencerdiesel » Fri Jan 01, 2016 10:38 am

Was the 2000 deg. for 5-10 with the he351? Can you get those temps with the 62?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

H1C/18

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw bottomed @ 3 turns, timing to the head/ >1/4”
Muffler delete

Minimum 60% WMO full time since Sep. 2018
spencerdiesel
14mm rotor
 
Posts: 1067
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
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Re: 2 pyros

Postby spencerdiesel » Mon Jun 25, 2018 3:24 am

If I'm hitting a particular 8% grade hill and I take it at 38 in 5th, it will pull the hill without losing or gaining speed. There is almost zero boost and the smoke is rolling, yet the exhaust temps will not get above 1100 if there is no boost present.

Smoking heavy with no boost, how come egts don't get hot until a little boost is a factor?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

H1C/18

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw bottomed @ 3 turns, timing to the head/ >1/4”
Muffler delete

Minimum 60% WMO full time since Sep. 2018
spencerdiesel
14mm rotor
 
Posts: 1067
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
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Re: 2 pyros

Postby DMan1198 » Mon Jun 25, 2018 8:04 pm

If my logic is right you’re essentially putting out the fire with that kind of afr. When more air is introduced combustion temps jump as you get towards 18:1.

Much like when spraying nitrous. If you are nearly burning all the fuel currently nitrous will cool egts, but if you’re heavily overfuelled egts will skyrocket when the spray hits.
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Re: 2 pyros

Postby spencerdiesel » Tue Jun 26, 2018 3:27 am

Thank you for the response Dman. I can follow that, as more intake air is introduced while attaining the same afr, there is more potential for heat as is power?
1992 W250, 5 speed, 4.10, Ext. cab Ext. bed, 12.5k winch, 75 gal. fuel tank

H1C/18

Fuel: THD 12 psi piston pump, THD fuel pin, 366 spring, fuel screw bottomed @ 3 turns, timing to the head/ >1/4”
Muffler delete

Minimum 60% WMO full time since Sep. 2018
spencerdiesel
14mm rotor
 
Posts: 1067
Joined: Tue Oct 27, 2015 4:02 pm
Location: Brevard, NC
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