Great video about ajrothm's (Alan's) new 496
12-11-2018, 03:10 PM
#21
Le Mans Master
Very nice. I am curious since the engine was still climbing at 6300 why you did not pull it higher, do you have a set rpm limit? It would be nice to see how far the power caries out to determine a shift point. Also the torque peak was the at the lowest recorded number, it would have been interesting to start the pull lower to see where the torque starts to build, does it match well with your torque convertor?
Spending the day on the dyno is an interesting experience, I’ve done it before, but not this extensively. It’s definitely not as easy to get the numbers as people think, lots of variables to deal with.
Last edited by ajrothm; 12-11-2018 at 03:17 PM.
12-11-2018, 03:16 PM
#22
Le Mans Master
If anything, throw it on the chassis dyno and do some ricer math and see what it calculates out to. At least with a stick car you can get decent rwhp numbers.
12-11-2018, 10:23 PM
#23
Melting Slicks
Member Since: May 2002
Location: Sulphur LA
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St. Jude Donor '05-'06,'11,'13-'14,'16,'18,'19
healthy combo, can't wait for the track runs and some video's
It's unbelievable what some with the knowledge on how to work the 049 heads to work with the selected engine parts can do, the flow numbers and actual HP produced leaves a good number of out the box heads lacking.
thanks for sharing,
Neal
It's unbelievable what some with the knowledge on how to work the 049 heads to work with the selected engine parts can do, the flow numbers and actual HP produced leaves a good number of out the box heads lacking.
thanks for sharing,
Neal
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ajrothm (12-12-2018)
12-12-2018, 07:42 AM
#24
Le Mans Master
healthy combo, can't wait for the track runs and some video's
It's unbelievable what some with the knowledge on how to work the 049 heads to work with the selected engine parts can do, the flow numbers and actual HP produced leaves a good number of out the box heads lacking.
thanks for sharing,
Neal
It's unbelievable what some with the knowledge on how to work the 049 heads to work with the selected engine parts can do, the flow numbers and actual HP produced leaves a good number of out the box heads lacking.
thanks for sharing,
Neal
Whats up Neal!
Go check out MJs YouTube channel, he has 22 vids posted of exactly how he builds these things and gets the power out of them. It’s a good binge watch on a rainy day.
https://m.youtube.com/channel/UC1W5b...HYwfa2w/videos
12-12-2018, 10:48 AM
#25
Advanced
I had Mark build my engine also. He does a great job of getting power out of them. When I dyno mine, I believe I was his first that wanted to test my FiTech EFI vs. his carburetor pulls on the dyno. After a few adjustments, we where able make just about the same power numbers on very little run time with the EFI.
You have a lot more HP and can't wait to see what a difference it make. Thanks for the video, it brings back good memories!
You have a lot more HP and can't wait to see what a difference it make. Thanks for the video, it brings back good memories!
12-12-2018, 03:58 PM
#26
Drifting
Wow, Alan!! That is quite an impressive 496! You are very fortunate to have hooked up with Mark - the guy is brilliant. I can't wait to hear what you car does at the track. I am also going to be interested to see what you are going to do about a torque converter. Do you plan on running the same one? Congrats!
12-12-2018, 04:28 PM
#27
Team Owner
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St. Jude Donor '05
THink its awesome you still have steel heads on it, no way to guess what its really making by looking at it.
Used to watch a lot of Joe Shermans discussions on how he would always sqeeze more than most from his motors, Mark sounds just as talented.
700 is a lot of power period and does not come easy. If I did a BB as much as I like to DIY Id be real tempted to hand it over to Mark. Hes not going to have you remortgaging your home either.
Used to watch a lot of Joe Shermans discussions on how he would always sqeeze more than most from his motors, Mark sounds just as talented.
700 is a lot of power period and does not come easy. If I did a BB as much as I like to DIY Id be real tempted to hand it over to Mark. Hes not going to have you remortgaging your home either.
12-12-2018, 06:44 PM
#28
Melting Slicks
Very nice Alan! That broad torque curve is spectacular!
12-12-2018, 09:03 PM
#29
Le Mans Master
Wow, Alan!! That is quite an impressive 496! You are very fortunate to have hooked up with Mark - the guy is brilliant. I can't wait to hear what you car does at the track. I am also going to be interested to see what you are going to do about a torque converter. Do you plan on running the same one? Congrats!
THink its awesome you still have steel heads on it, no way to guess what its really making by looking at it.
Used to watch a lot of Joe Shermans discussions on how he would always sqeeze more than most from his motors, Mark sounds just as talented.
700 is a lot of power period and does not come easy. If I did a BB as much as I like to DIY Id be real tempted to hand it over to Mark. Hes not going to have you remortgaging your home either.
Used to watch a lot of Joe Shermans discussions on how he would always sqeeze more than most from his motors, Mark sounds just as talented.
700 is a lot of power period and does not come easy. If I did a BB as much as I like to DIY Id be real tempted to hand it over to Mark. Hes not going to have you remortgaging your home either.
Everyone likes to bench race and use ricer math to compare parts/combos to gauge power, I often times just sit here and think to myself "Do your thing, I'll wait for it"...
For comparison purposes, my buddy built a 498", 10.5-1, Dart 270 ovals, fully ported by Slick Rick, big Straub HYD roller (like 258*), Victor Jr intake, Zepeda 1000 carb.... It made 706hp/656tq... SO he had more compression, more head, more cam, more intake, more carb.... and only made 8hp more? And it was professionally machined and built by Owens Racing engines who has been around since the 70's. On paper, you would think he would make 40-50hp more then my combo but...not the case. His car did run well though, 10.02@132 with a 1.37 60' at 3500lbs.. I hope mine traps close to that.
12-12-2018, 09:10 PM
#30
Le Mans Master
I had Mark build my engine also. He does a great job of getting power out of them. When I dyno mine, I believe I was his first that wanted to test my FiTech EFI vs. his carburetor pulls on the dyno. After a few adjustments, we where able make just about the same power numbers on very little run time with the EFI.
You have a lot more HP and can't wait to see what a difference it make. Thanks for the video, it brings back good memories!
You have a lot more HP and can't wait to see what a difference it make. Thanks for the video, it brings back good memories!
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suprspooky (12-14-2018)