I'm already at about 31 on the boost gauge....the egt's will hit 1300 if I have the fifth wheel behind me.

Thanks, Tony

 

Thanks for the pic!!! That looks like almost the same width as the OEM unit. Are the inlet/outlet tubes the same size?

 

I can make 28psi manifold pressure, the only thing is I can't use it all and stay at 1200deg pulling a 6% grade for a couple miles. You won't either, sure you could use that much power to accelerate to speed and the exhaust temps will only get to 1300deg, but if you stay in it for any longer and they'll get a bunch hotter than that! Come on up here to elevation and pull your 5th wheel over a pass and try to use all of your fuel making 31psi. NOT going to happen.

PS IC has 3.25" OD inlet/outlet.

 

Thanks again!!!!

 

Yes you're right....I couldn't understand why everyone wanted a PS intercooler. I also think my egt's wouldn't be so high if I had a 16cm exhousing instead of the 12cm.

Thanks, Tony

 

What other ones are available ?? seems nobody makes parts for these trucks any more, other than stock.
And Dodge ICs were never very good. Just better than nothing.

 

Actually, the addition of the intercooler in 1991.5 had nothing to do with engine performance (HP/torque wise). The IC was added as an emissions control deal. I can't remember the exact thing but it seems the reduction in combustion temperatures lessens the production of oxides of nitrogen (don't quote me on the chemical/compound).

 

i'll quote you cuz you're right. higher combustion temperatures lead to higher nitrous oxide (NOx) and low combustion temperatures lead to higher hydrocarbons (HC's) aka unburnt fuel. you'll never be able to get rid of either one. you'll only have an equilibrium.

 

So thats why they used el cheepo, they never cared about power in the first place.

 

All the changes were due to emissions. VE to P7100 to VP to the Common Rail, to the 6.7 Cummins.

The stock 1st Gen Intercooler can support 500+rwhp, as Bill Gilbert has proved. That's more than enough for any daily driver. (VE)

 

if you think about it, it was a power upgrade. the only reason they made the same power as the non i/c motors was using smaller injectors. with the addition of the i/c, obviously the intake air temperature was reduced. and when you cool the intake air, it becomes more dense. the air then has more oxygen molecules for the fuel (when atomized) to bond to/mix with and ignite for a more efficient combustion process. more fuel burned the less unburnt fuel there was (no smoke in stock form). as was stated in my last post, low combustion temperatures or more unburnt fuel leads to higher hydrocarbons (HC's) and less unburnt fuel leads to higher combustion temperatures, thus leading to higher nitrous oxide (NOx). hence always having an equilibrium.

 

I believe it's 3" even.

 

On the inside yes, I had to use stepped silicone boots, as the aluminum is thick, which gives 3.25" OD. I'll double check, got another one for the new truck.

 

yes 500 is plenty problem i had is the zig zag stuff between the rows or colums started unraveling like a button thread.

 

here's BC847's intercooler if anyone is curious...



from cumminsforum.com he writes "Joe Hellman of Hellman Performance can make anything you want and guarantee it to 100psig."