Post
by Matt » Thu Mar 07, 2013 9:15 pm
The are way more fun to drive i have driven both back to back so to speak. It has to do with the flow. The intake and exhaust are about 25% bigger atleast. Roughly the standard EA81 is under 40mm where as a EA81S or dual port head is around 50mm. So therefore more air and fuel in and burnt stuff out quicker. Thus they rev quicker and harder. The same reason a ported and polished head will be more responsive, etc.
"Bianca"
'86 Brumby - Dual Port Heads, 5 Speed Dual Range, Custom Cam, Tuned Weber, Tuned Suspension, 2" Body Lift Kit, LSD, 14" rims, 2.25" Exhaust, Snorkel, Dual Batteries, DVD Player, UHF, VHF, etc.
Offically now part of the 350, 000 km Club!
And still pulling like a freight train.
"Claudia"
82 MY Wagon - EA81T, RS Liberty WIAC, 5 Speed Dual Range, Tuned Suspension, 14" Rims 27" Tyres, 2" Body Lift Kit, Apline Head unit, UHF, Roof Console, L Series seats, Soon to have New Paint, snorkel, Dual batteries, etc
![Image](http://img585.imageshack.us/img585/7661/dsc00101ym.th.jpg)