/6 Power Improvements

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Jim Kueneman

Jim Kueneman

FABO Gold Member
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If you want real data in choosing your /6 upgrades I plotted the data from this article:

Slant Sickness! How To Add 77 HP To Your Mopar Slant Six! - Hot Rod Network

It seems to me the Dutra Duals are cools looking but for the bang for the $600 buck is not there for me in the typical cruising RPM but letting it breath has a HUGE benefit.

Dyno Run Comparison with Various Add-ons.jpg
 
Jim Kueneman said:
If you want real data in choosing your /6 upgrades I plotted the data from this article:

Slant Sickness! How To Add 77 HP To Your Mopar Slant Six! - Hot Rod Network

It seems to me the Dutra Duals are cools looking but for the bang for the $600 buck is not there for me in the typical cruising RPM but letting it breath has a HUGE benefit.

View attachment 1715427958
Click to expand...
nice article!! i got some manifolds half the cost same performance if your interested. Going dual was a great choice for my slant
 
Split the factory intake front of stove aka "Dutra econo rear". Weld the front 3 closed and add a flange at #2, use the welded closed rear flange as is.
 
I take that the Stock Torque & HP numbers is with a 1BBL?
 
moparblood said:
Pista, can you post a pic of the intake?
thanks
Click to expand...
This was Doug Dutras concept before he cast his own. Worked pretty good but shorty hyperpak header deaign would work better if your not interested in carb heating.
welded-duals.jpg
 
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