Mike, Mike, Mike, When are you gonna get out the digi-cam and post us a copy of your dyno sheet/s?? Inquiring minds would like to see what you have. Come'on, share it with us.:bglasses:
http://mrbuick.com/535dynoday.htm I put some of this here I will have more to post later as far as the sheet I cant get it to photo its like lite printed what exactly are we looking for ??
Better spiff up the underside Mike. A few more people may be seeing it this year!:Brow: 10X26 fluffies and LADDER BARS!!!! :blast: NO MORE SKATIN'!!! :blast:
Mike....Congrats !!! those #'s are unbelievably AWSOME !!! I tried to watch the video from the dyno page link.....the link isn't active on the tach pictureo No: Refresh our memories.....what were the HP/TQ specks of the motor when it went 10.18 "Skatin" ??
I am almost sure that it was close to that the whole time!!!:eek2: I cant get the video from gsdave yet!!!???? So I havent had it to load on the site. I used his camera to film it !! So everyone email gsdave to tell him to hurry up!!!!! I want it too!!!:moonu:
Wow!! thats a monster! Who's crank are you running, (regrind/TA/billit, other) to get to 535? Just dreaming of a stroker....:laugh:
Mike, I would like to see that big fat torque curve a little better, because we all know thats where its at with our heavy Buicks. Also, why didnt they pull the engine down to around 3500 or so, or lower, for the pulls since thats what gets the car moving in the first place? Just thinking out loud.:gt:
Like I said in a previous post the torque on a chebby was in the 6000 rpm range so he couldnt get the dyno adjusted well enough to handle the torque of the BBB !!!:Brow: So all i could get was a 4600 rpm reading and we ran out of time (money) to keep going :ball: :ball: At $50 hour I was at the $350 I had in my pocket and that wass all I could afford. If work wass better I would have stayed a whole day. I am so tapped out making all my bills right now (since work is slow my check is 30% short each month) :eek2: As for buying a VAC set up it wont happen this year Im barely keeping away from the tax man as it is!! I have a ton of stuff to sell soon and at BG so hopefully I can get back on track. My goal this year is 9.80's I dont think im out of the possibility of doing it either. I have had a HUGE learning curve this last year. I think Im ready now....... PLUS Im not thrashing tio get ready to go to BG this year:beer
I heard from a little birdy today that JWs dyno results were exactly online of my motor this last week too!!!!!:beer If you take HP per CI they were a dam close runner of each other!!!! Nothing to be ashamed of there guys!!!!! Congrats to all new hot rod engine owners!!!! Mt Dews for everyone!!! :beer :beer :beer :beer
JW Well what were the numbers? I've been sitting on the edge of my seat wanting to know how it turned out. Don't keep us in suspense. I love dyno numbers like crazy. Mike are you going to show us the whole pull on the monster I think there are allot us that want to see that big flat torque curve. Come on guy's PLEASE
Bobb, George's made 745 HP, and 675 torque, with a 260/268 roller cam. Made 710/660 with a TA 308 solid. Direct power increase from the roller was exactly 20 ft/bs and 20 HP/ the rest to get to that 745 number was some tweaking... and the vacc pump would only pull 10 inches, due to the fact it kept sucking the fresh sealer off the back of the intake manifold.. it needed overnight to completely dry. When we got it to seal up a bit better and increased the crankcase vacuum to 9-10" from 6 during the pull, it immediatly picked up 15 HP, from 5800-6200. The motor wants more compression and more pump.. and it's gonna get it.. Compression is just barely 13-1 in that motor, as we were going to see if we could get away without o-ringing it, and just using the TA orange gasket. But we want more HP/Torque, and this thing has not reached it's full potential yet. And I love that pump... even with the motor getting ripped all apart on the dyno, and being in nowhere near the sealed up state they normally are, it did not leak a drop of oil.. We are going to an o-ring copper head gasket setup, and raising the compression to 14-1. A similar motor owned by Ken Seminole in town here, with this exact same cam, made 748 Hp, without the Vac pump, but at 14.5 compression. I think with the pump, and more compression, we can get this one to the 760 range. We just about equaled that one, without the compression, but with a pump. Also, I was very unhappy with the oil pressure, we were using a scavenger style oil system that a local Buick racer/ machinist had made, and he is quite sure that is the cause. Changing the compression is no big deal, since after pulling it repeatedly to 6400 with 40 some psi of oil pressure, it has to come apart anyway. Even though the oberg oil filter screen was perfectly clean. It ain't gonna live long at that oil pressure, and we need to determine if we have to go to the external single stage oil pump, or if some combination of the stock/HV pump and interal oil pickup will do the job. To make sure I maximize my power testing at the dyno shop, Mike and I are currently building a engine run stand in the shop here, so we can have everything ready to go by the time we strap it to the dyno next time, and for use with all the other engines and testing we will be doing this spring. I post some pics of it when we get it done, but it's shaping up nicely. Mike and I were up until 5am this morning, building it from scratch, and by the time we quit last night, that 494 was sitting on it. This is after I was up from 7am Sunday morning until Midnight Monday night, continuously, since there was an issue with a schduling conflict with the owner of that STG 1 alum motor we are going to test a ton of stuff on, and the time became available to do some cam testing with the 494.. but I had to rip that motor apart again, and degree all the cams in, check for valve clearance ect.. So now I am just getting back to my "normal" sleep-deprived state..
Jw I use the scavanger, now it is the one we make so i do not know if it is the same or not. The one we make and AMP sells is on sevral motors and none that i know of have low oil pressure I hit 70 lbs at around 4000 and it stays there. John Z ,Justin cox, Perry Carlini are some of the guy's running it and we have it on three cars. Amy has not been apart in three years. I would say it is in your plate. To bad it did not work for you might try an original. :TU:
We lost about 15-20 psi at 14in of vacum when we went to a vacum pump on Ricks motor. I talked to peterson fuild systems and they said that is just the nature of a vacum pump, vacum is fighting oil flow through the oiling system. The problem just gets worse with an poor natural oiling system as our buicks. It's not a problem on chevy, ford, mopar, but on a buick engine that needs lots of pressure it takes some work to get the balance between vacum and oil pressure. We made some oil pressure adjustments and backed down to 10in of vacum that left us with 65psi at 6800. As soon d/c the pump, pressure jumped to 75+psi I got my vac-u-pump in last month I need take some pics and post them.
Yes, we considered that, and disconnected the pump.. only a 3 pound difference. The thing that really got me, was that we went from 5-20w oil to straight 40.. No difference in oil pressure at all. So we knew it was not a hemorage of thin oil issue.. it's a suction/delivery/oil pressure regulator valve problem. JW
.....transfer to standard tape complete........LOVE the sound when the camera was in the engine room on one of the pulls!:Brow: .........swing by later today.......
Rodger that, just tossing out what we went through. One other issue we had was as you said, the vacum pump sucked RTV out of everywhere and clogged the oil pick up. Rick made a new pick up with no screen and switched to an inline oil filter to catch the big stuff before it got to the pump. Before we made that switch we could see a loss of pressure the more the engine was run. It would take a couple of pan removal/clean the pick before the vacum pump sucked all the lose RTV. This was only an issue after an engine tear down, but it was enough for Rick to find away around this issue. All the work we did on Rick's engine reference the oiling system, was the driving force behind me going to a single stage external pump, whick lead me to the dual system (single stage external pump and vacum pump all in one) vac-u-pump from peterson fuild systems. Only time will tell if I wasted a grand+ in my oiling system.
No, we are using an external -12 AN pickup, from the oil pan to the pump. It never sucked any of the sealer (NOT RTV) into the oiling system. Just wanted to clarify that. JW
