Where can I find this info??

Flow data for stock L98 heads???

And I did search the archives!

 

Here's the numbers I've been using in Dyno2000. I forgot where I got them:

Lift Intake Exhaust

.050 29 27
.100 56 52
.200 120 104
.300 160 133
.400 186 150
.500 196 170
.600 199 175

 

Hey. They're somewhere on the board, not sure where though. But I got these off when I saw it.

Lift Intake Exhaust
0.1 44 41
0.2 101 82
0.3 155 125
0.4 182 137
0.5 196 140

28" H20

David

 

hmmm conflicting #'s

thanx guys much appreciated. any idea which is more accurate? My guess would be on the conservative side

 

The numbers are pretty close, actually. I'd average them. I doubt every L98 head flowed the exact same numbers anyway since they're cast.

 

Thanx I didn't thinlk of that

 

Which L98 head would that data be for?

Iron?
Aluminum 1st Design?
Aluminum 2nd Design (D-Ports)?

 

Mine were for stock cast iron heads.

 

Ok now how about the flow rate of a stock TPI intake throttle boddy down to the base. also flow rates for individual parts would be nice. TIA

 

Yeah mine were for stock Iron ones too.


More info from the boards...


Part CFM
Stock base 222.5
Accel base 251.5
Extruded Accel base 275.8

Stock runner 203.2
Accel LTRunner 242
Super Ram runner 289.2
AS&M long tube runners 260


Stock base, stock runners 198.72
Stock base, Accel runners 213.5
Accel base, stock runners 215.8
Accel base, Accel runners 232.5
Accel base, Accel Super Ram 240.2
Accel base, extruded Accel runners 243.2
Extruded Accel base & runners 266.9
Stock base, Accel Super Ram 220.67
Stock base, Extrude Accel 217.11



Stock Throttle Body 48mm 670
Stock with Airfoil 709
AS&M 52mm 750

Sorry for the bad formating...
David

 

FYI you might want to skim through this post. It has some flow numbers of Iron and AL l98 heads. Also just all around good info.

https://www.thirdgen.org/techbb2/sho...t=iron+L98+cfm

 

I tried searchin bit came up with notta! must be doin something wrong. Thanx for the great info!

 

i just searched and it came up with quite a bit of info...

 

Glad my stuff is coming in handy You can check out part 3 of the l98 info at
https://www.thirdgen.org/techbb2/sho...+head+project.
The heads are done for part 4, got some pics, just too darn busy right now. Heck this is the first time i've even checked on the boards in a coupla weeks.

 

Good work. Makes for some good reading thanx.