cylender Pressure Question

[TowPro]

We had a conversation going last night on the radio and the question came up "how much pressure is going on in the cylender on our Diesels while running 30 lbs boost?"

Anybody got an idea?

 

[timd]

On a diesel i can't tell you. I use to work at a shop that built Pro Mod motors. We had a special sparkplug that also read pressure.
On a 706 1800hp big block with 16:5 compression, pressure would hit 7000 psi

 

[illflem]

On a 12 valve the injector line pressure can reach 17,000 psi, that must mean the compression is getting close right?

 

[My 6 Eats V8's Old File]

Piers and I ran a commpression ratio for our trucks at 45 psi boost we are running @ 59:1
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96 4x4, 3. 54 posi, 6. 5"lift, 35" bfg m/t's and 35x14. 5x16. 5 boggers,dual stabalizers, aluminium wheels, sport headlights,billet grill, K/N 0880, NOS, Performance Diesel LPG, BD Pulling/Competition fuel injection pump,370hp marine injectors, ported head, Hx40 w/ 16cm2, 4" exhaust w/ 2 chamber Flomaster, BD copetition auto transmission and torque converter, Kenwood sterio System, Westach 60lb boost/ egt guage with warning light,aluminium bed rail covers,chrome diff covers, 5 foot traction bars,
475hp and 1050lb of torque on #2
530hp and 1140 with bullydog lpg maxed(only 55hp)
590hp and 1200 with lpg and nos
all done in 5th gear with 35's.
have a great day.
Adam