Chevy Small Block Part 22 - Comp Cams

While some racers would jump for joy at such an increase, and we're certainly not putting it down, for the time, effort, and expense of the swap the results were not worth it in our minds. All that means is that we've pretty much hit the wall with the current parts combination we have and just like on the street, throwing bigger parts at it won't make it go any faster. So we're rethinking our strategy and planning some cool stuff in the near future. We're confident we'll see close to 600 hp by the end of this year, still on pump gas, too. But while we're not totally sure we can get there from here, one thing we are sure of is it won't be easy, but it'll sure be fun!

DM Part 21-Test 36:
Same as T35 except swapped Edelbrock Super Victor manifold and COMP Cams XR286R solid roller camshaft (248/254 @ .050, 286/292 adv, .606/.612 lift w/ COMP 1.6:1 rockers, 110 LS), Holley HP1000 carb, 38 degrees total ignition advance.

COMP Cams has been making "street" roller cams for several years, but we hadn't tried one in a small-block until we slipped this XR280R stick into DM.
COMP Cams has been making "street" roller cams for several years, but we hadn't tried one
Edelbrock's Victor Jr. cylinder head package flows some serous numbers and we were a little concerned that they might be too big for DM to handle. But we proved ourselves wrong.
Edelbrock's Victor Jr. cylinder head package flows some serous numbers and we were a littl
Next in went Total Seal's ultra-trick gapless top ring set, (not shown on a DM piston) which gave us 13 more peak hp and 15 lb-ft more torque. Considering this is not really a "swap" and it's something you could do when building the engine, we think gapless rings are a great investment.
Next in went Total Seal's ultra-trick gapless top ring set, (not shown on a DM piston) whi

We really wanted to make another 50 hp with a cam, manifold, and carb swap. We begged Edelbrock to let us run their big Super Victor manifold (left, next to the Victor Jr.) and COMP Cams gave us their next size larger Extreme Energy roller cam. All of it made us more power, but not quite enough to justify the effort.
We really wanted to make another 50 hp with a cam, manifold, and carb swap. We begged Edel
Even though the Mighty Demon carb had been working well beyond our wildest expectations, we wanted to see if a bigger carb would work better, (we just couldn't get the bigger is better mentality out). The HolleyHP1000 carb didn't hurt.
Even though the Mighty Demon carb had been working well beyond our wildest expectations, w

DM Part 20-Test 35:
Same as T34, but with Total Seal ductile iron Gapless top rings (PN M3690 35)
	Test 34		Test 35		Difference
	Standard		Gapless
RPM	TQ	HP	TQ	HP	TQ	HP
2600	345	171	352	175	+8	+4
2800	362	193	373	199	+11	+6
3000	371	212	384	220	+13	+8
3200	374	228	387	236	+13	+8
3400	374	242	381	247	+7	+5
3600	387	265	389	266	+2	+1
3800	398	288	403	291	+5	+3
4000	396	302	405	309	+9	+7
4200	393	314	407	326	+14	+12
4400	402	337	416	349	+14	+12
4600	415	364	430	376	+15	+12
4800	428	391	440	402	+12	+11
5000	435	414	448	427	+13	+12
5200	440	436	452	448	+12	+12
5400	441	453	453	466	+12	+13
5600	439	468	450	479	+11	+11
5800	433	478	444	490	+11	+12
6000	428	489	435	496	+7	+7
6200	420	496	420	495	0	-1
6400	412	502	407	496	-5	-6
6600	401	504	398	494	-1	-10

Max	441	504	453	497	+15/-5	+13/-10
Avg	404	359	413	366	+9	+7

	Test 35		Test 36		Difference
RPM	TQ	HP	TQ	HP	TQ	HP
2600	352	175	353	175	+1	0
2800	373	199	375	200	+2	+1
3000	384	220	390	223	+6	+3
3200	387	236	393	239	+6	+3
3400	381	247	388	251	+7	+4
3600	389	266	395	271	+6	+5
3800	403	291	407	294	+4	+3
4000	405	309	416	316	+11	+7
4200	407	326	421	336	+14	+10
4400	416	349	428	359	+12	+10
4600	430	376	437	383	+7	+7
4800	440	402	448	409	+8	+7
5000	448	427	454	432	+6	+5
5200	452	448	455	451	+3	+3
5400	453	466	453	466	0	0
5600	450	479	452	482	+2	+3
5800	444	490	450	497	+6	+7
6000	435	496	443	506	+8	+10
6200	420	495	430	508	+10	+13
6400	407	496	416	507	+9	+11

Max	453	497	455	508	+2	+9
Avg	414	360	420	365	+6	+5

SOURCES
ACCEL Performance Products 10601 Memphis Ave. #12 Cleveland OH 44144	Holley Performance Products 1801 Russellville Rd. Bowling Green, KY 42101 KY 42101 270-782-2900 www.holley.com
Accessible Technologies, Inc 14801 W. 114th Terr Lenexa KS 66215	Summit Racing Equipment P.O. Box 909 Akron OH 44309
COMP Cams	Speed-O-Motive 131 W. Lang Ave. West Covina CA 91790 6-26/-869-0270 speedomotive.com
Demon Carburetion Dahlonega Ge 7-06/-864-8544 barrygrant.com	Vrbancic Brothers Racing 1463 E. Philadelphia Ontario CA 91761 909-930-9980
Edelbrock Dept. 5.0 2700 California St. Torrance CA 90503 310-781-2222 www.edelbrock.com	Bill Mitchell Hardcore Racing Products 51 Trade Zone Ct Source for World Products Ronkonkoma NY 11779
FUEL, AIR, SPARK, TECHNOLOGY (F.A.S.T.) 151 Industrial Dr., Dept. SC Ashland, MS 38603