stk 317, ported 317, stk l92

Pesce Nero · 11-13-2013, 08:10 PM

so I did some tests tonight with interesting results. not sure how these numbers compare to other benches but its what I got

stock 317 3.95 bore
1. 68, 2. 142 3. 196 4. 228 5. 236 6. 240

stock 317 4.20 bore
.1 79 2. 154 3. 209 4. 247 5. 257 6. 260

ported 317 for boost, swirl hump next to guide left in

on a 3.95 bore
1. 74 .2 153 3. 209 4. 249 5. 278 6. 295

on 4.20 bore
1. 74 2. 153 3. 210 4. 250 5. 278 6. 278

stock l92?(5364) on 3.95 bore
1. 75 2. 148 3. 204 4. 247 5. 274 6. 287

stock l92 on 4.20 bore

1. 83 2. 157 3. 221 4. 272 5. 311 6. 330

I have 2 sets of heads I just recently ported, 241s and 317s and noticed both sets didn't pick up flow over .500 and realized I had them on my 4.20 bore. I have read that a bore larger than the chamber can cause turbulence but never noticed it before till I made the mistake the other day

MonteC · 11-13-2013, 09:04 PM

What did the 241's flow?

Pesce Nero · 11-13-2013, 09:45 PM

Quote:

Originally Posted by MonteC

What did the 241's flow?

stock port from another 241 head on 3.95 bore

1. 69 2. 123 3. 179 4. 214 5. 223 6. 227

ported 241s in my shop now on 3.95 with swirl hump

1. 74 2. 147 3. 202 4. 240 5. 261 6. 275

on 4.20 bore

1. 74 2. 138 3. 196 4. 240 5. 265 6. 257

MonteC · 11-13-2013, 10:03 PM

Nice.

blkscls1z · 11-13-2013, 10:42 PM

Reps for some actual tech on here for once lol.

DIGGLER · 11-13-2013, 11:17 PM

wow that is a huge difference.... never would have thought it would be that drastic, and i will keep my eye on it in the future. thanks for posting!

Matts94Z28 · 11-13-2013, 11:20 PM

Not too bad for a monkey with a dremel.

11-13-2013, 08:10 PM	#1
Pesce Nero Senior Member Join Date: Jul 2008 Posts: 2,680	stk 317, ported 317, stk l92 so I did some tests tonight with interesting results. not sure how these numbers compare to other benches but its what I got stock 317 3.95 bore 1. 68, 2. 142 3. 196 4. 228 5. 236 6. 240 stock 317 4.20 bore .1 79 2. 154 3. 209 4. 247 5. 257 6. 260 ported 317 for boost, swirl hump next to guide left in on a 3.95 bore 1. 74 .2 153 3. 209 4. 249 5. 278 6. 295 on 4.20 bore 1. 74 2. 153 3. 210 4. 250 5. 278 6. 278 stock l92?(5364) on 3.95 bore 1. 75 2. 148 3. 204 4. 247 5. 274 6. 287 stock l92 on 4.20 bore 1. 83 2. 157 3. 221 4. 272 5. 311 6. 330 I have 2 sets of heads I just recently ported, 241s and 317s and noticed both sets didn't pick up flow over .500 and realized I had them on my 4.20 bore. I have read that a bore larger than the chamber can cause turbulence but never noticed it before till I made the mistake the other day __________________

11-13-2013, 09:04 PM	#2
MonteC Senior Member Join Date: Oct 2009 Location: Summerville Posts: 4,431	What did the 241's flow? __________________ Griffin Transmission -Home of the most badassest Monte Carlo- Cell: 843-276-0554 Shop: 843-793-4607 04 RSX 06 Ridgeline 86 Monte Carlo

11-13-2013, 10:03 PM	#4
MonteC Senior Member Join Date: Oct 2009 Location: Summerville Posts: 4,431	Nice. __________________ Griffin Transmission -Home of the most badassest Monte Carlo- Cell: 843-276-0554 Shop: 843-793-4607 04 RSX 06 Ridgeline 86 Monte Carlo

11-13-2013, 10:42 PM	#5
blkscls1z Senior Member Join Date: Jun 2008 Location: Between Goose Creek & Moncks Corner Posts: 2,310	Reps for some actual tech on here for once lol. __________________

11-13-2013, 11:20 PM	#7
Matts94Z28 Senior Member Join Date: Apr 2008 Location: Summerville Posts: 12,039	Not too bad for a monkey with a dremel. __________________ Charleston Performance Solutions 4560 Rivers Ave. N. Charleston SC 29405 843-225-1142 https://www.facebook.com/CharlestonPerformanceSolutions www.facebook.com/Selepack

11-13-2013, 11:17 PM	#6
DIGGLER Senior Member Join Date: Aug 2012 Posts: 1,458	wow that is a huge difference.... never would have thought it would be that drastic, and i will keep my eye on it in the future. thanks for posting!