327 cam recommendations

rick he stated (post #7)that there are 2 450 cfm carbs that limits it to the tunnel ram in the first picture

btw Ive used that edelbrock street, tunnel ram with the crane 110921 flat tappet cam, and several different displacements on several SBC and with proper tuning its a very noticeable improvement over the tarantula intake
 
OK, so who makes a TM1 tunnel ram manifold?

Every search comes up with the Edelbrock Tarantula intake, so I wanted to clarify before posting a Sim.
 
shopping

I think he's referring to the STREET version edelbrock 7110 tunnel ram (not the tarantula) (no idea where the (TM) designations from)
 
Mitch said:
what do you guys think of the trick flow DHC 175 with 60cc chamber?
Click to expand...
The chamber size at 60cc is about perfect with the present cam.When the cam changes it can effect the DCR pretty significantly some times by changing the Intake Valve Closing IVC angle. Also installing the cam advanced or retarded can be used to adjust the DCR.

I changed the Gasket Thickness to .024 so that the quench distance would be .040". That's considered the minimum distance to be safe, you were at .036". With the DCR at 7.87, 91 octane should work.

What octane are you planning on running???

CompRatio_02.jpg

The flow numbers look surprisingly good for such a small intake port volume.

TrickFlow-DHC175.jpg
.
 
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I went ahead and assumed a tunnel ram like in Grumpy's pic above.

What would you like to try next, a different cam or different heads or ..... ???

Sim01_FuelieHeads_Crower00322.jpg
 
(https://www.summitracing.com/parts/pfh-176-21-04-93)

Id suggest you try the larger heads I suggested above,
boost the compression to 12.3:1 and run a solid roller cam with the larger port heads
and use 1.6:1 roller rockers and a rocker stud girdle
yes e85 ethanol fuel might be a good option at that point

the 175cc port heads are absurdly restrictive for a 331 RACE ENGINE
with a crower 00430 Chevrolet Mechanical Roller Camshaft if I seriously raced the car
if your serious about racing youll want to win a few just to keep in interesting while you piss money away

RICK? could you software dyno that combo
 
Hey Guys, this is the intake im going to run. I modified it by machining the interior and welding a plate that ressembles an edelbrock victor ram. like the gasser guys are doing so gas doesnt puddle in the bottom. this is not a "race" car. this is to run on the street. and yes we have a nearby track i would like to try it out at but mostly street. i dont care if its a bit radical or if i have to hot shoe it a bit. its all part of the fun. If it was only race i would of went with different heads from the start . and definately connecting rods and higher compression pistons.
 
Indycars we have 94 and at the very least 92 up north. What is appealing to me now with the info your giving me is the DHC 175 with my 0322 cam which is close to the 110921 cam but with 112 LSA. do you think you could run this combo on your software?
 
Hey Indy/Grumpy , ive been looking for a while and being new to this site and not too computer literate . i cant find where to make a donation.?
 
I changed the gasoline to a higher octane, so Sim01 will be a few HP higher now than the first time.

I wasn't sure which cam you wanted, Crower 00322 or the Crane 110921. Let me know if I got it wrong.

With the TF DHC175, the chamber size needs to be smaller. I used 57cc in the SCR/DCR calcs, so milling the heads would be needed. I'm still using a .024" thick head gasket to give you .040" quench distance. If you have Excel you can play with the calculator yourself, it's available on this website.


Sim01_vs_Sim03.jpg
CompRatio_03.jpg
.
 
thank you for posting the SUGGESTED COMBO/DYNO RICK!

index.php


could you over lay that CROWER 00430 cam ,gasoline dyno,
with an almost identical one, yet change it to use of E85 and open headers ?
Im sure the result will be even more impressive,
 
Indycars said:
I changed the gasoline to a higher octane, so Sim01 will be a few HP higher now than the first time.

I wasn't sure which cam you wanted, Crower 00322 or the Crane 110921. Let me know if I got it wrong.

With the TF DHC175, the chamber size needs to be smaller. I used 57cc in the SCR/DCR calcs, so milling the heads would be needed. I'm still using a .024" thick head gasket to give you .040" quench distance. If you have Excel you can play with the calculator yourself, it's available on this website.


View attachment 18533
View attachment 18534
.
Click to expand...
Yes the 00322 cam is what i wanted. the Sim1 is with ported fuelie heads right?
 
THANK YOU RICK!
Id have expected the dyno result with E85 to crack 600 hp/500 ft lbs as theres almost always a 10-12% power increase once correctly tuned
and the ignition curve matched, but its probably because E85 really needs to have about 14:1 compression to get the full benefits

www.enginelabs.com

The Big Fuel Test Part 5: E85 Versus All—The Winner is Crowned!

In the final installation of our Big Fuel Test series, a winner is chosen—and the results may surprise you! Bob Morreale runs down all of the specifics.
www.enginelabs.com www.enginelabs.com


 
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