fwd: Intakes,High R stroker,ETC, Etc, etc

["Jim Blair" <carnuck@xxxxxxxxxxx>]

Interesting stuff on strokers list recently!


    From: "johnbrown45005" johnbrown45005@xxxxxxxxx
Subject: Re: Intakes,High R stroker,ETC, Etc, etc


Let's see if I can condense this thread a bit!
    dragonland, I do not have any specific reading material for you. 
I did a bit of research on the net but relied mostly on a friend who 
worked at Mopar cylinder head developement. He was the guy 
responsible for developing the 4.0 head back in the begining.
    ihgeardog1, I run three non HO tb's on top of the plenum. The 
intake before this one used the same base intake but the second half 
had longer runners with much bigger dia. bores, much larger plenum, 
and two HO tb's. That intake was not best suited for the rpm range I 
was running. The intake made best power way after the cam gave up and 
the result was a loss in torque. Not to mention the head was not 
capable of flowing at high R's. You could even see in the data log of 
the engine computer where after 6100 or so the engine took much 
longer to accelerate. The latest intake with the three TB's have a 
bit shorter runners, much smaller volume, much smaller plenum volume 
and three smaller tb's which all help keep velocity up in the intake 
without resricting it. The head received a port job too but still has 
stock valves. There is no epoxy in the ports and I still run water. I 
run an Electomotive TEC unit  which enables me to tune all aspects of 
tuning and this way I can get past the problems of the stock ECM. All 
pedals were fabbed brake and throttle. I use a Comp Cams and yes it 
is a stroker. 
  canook2u, my unit was made WAY back in 1989, it is a TEC 1, they 
were custom made per application. I would love to have the new TEC 3d 
but it is a bit expensive at this time. I have seen the tmw set up 
but decided that a plenum set up would yield better power and be 
easier to tune. Not to say that I would love to try it, it would be 
interesting. I just don't know if having the injectors further away 
from the valves would really gain that much power or not. Some NHRA 
guys are finding benifits to this though. I do not have any Dyno 
numbers but years ago before the ported head and newest 3 tb intake 
it ran a 7.29 at 94 MPH in the 1/8th mile. 
    Rice EATR, did you see the first intake I made in the folder? I 
did just that. It did help but I think that the runners are a bit 
small to take the full benefit of the two TB's. Take a look at how 
much smaller the stock intake manifold runners are compared to the 
actual intake port in the head. I wonder if the new intakes with the 
equal length runners are the same way? I have never had one in my 
hands to look at it.