Keep track of your shift points and RPM at the track if possible... Also get some video of your launch as it may help you tune things. Are you running headers? If so this thing should haul!
Sean, I'll be video with my I-phone, the motor should be shifting at 5700 rpm, my son will be manually shifting when he sees the shift light at 5500 rpm... Chip is set at 6000.. The car has Hooker headers,.. We're hoping for some good ET's.. Thanks,,
Some great numbers from tonight,I don't want to steel Chandler's(or Jerrold,Chandlers' dad) thunder so I'll let them,let everyone know!:Brow: :3gears:
OK, people, no earth shattering times but remember what we started with,...were very happy... 1st pass was very promising.. at a 13:28 at 101.60 ,... leaving at 2000 rpm and almost all 60 foot's were in the 1.90's We put in 9 runs tonight.. with some spinning problems when we started leaving at 2500 rpm, tires air at 15 lbs with the worst et at 13:62 at 101.16, and the car seem to like lower water temps at 160* to 170*,.. The 2 worst runs at -100 mph runs were at 180*+ with one fuel issue falling off in 3rd gear, and the other shifted to early... so I will give you the better last 3 runs,..spinning , but better times.. 13:24 at 101.63,.. 13:41 at 101.80,..and 13:40 at 102.04,..2.07- 60 ft. spinning,..going thru the finish line at 5200-5300 rpm..a little room for improvement.. --all stock suspension with rear upper adj... and gas charged shocks all around.. So my son drove the whole night and had a blast... thanks for listening,..jerrold
I see that car in the 12's very soon. My low 14 second car 60fts in the 1.90s so that tells a tale right there. Slicks or drag radials? I personally am quite impressed. I mean we all know these times are possible but to see a "budget" 350 in the low 13's is pretty sweet. I for one would be thrilled to get my car in the 12's and if just sending the heads out and throwing a cam in is what it takes (I know I am over simplifying) then I am even more excited. Goes to show that while roller cams and aluminum heads would be nice, we don't need it to be making respectable power out of our SBB mills.
Nothing wrong with low 13s for a 350! Keep up the great work... Sounds like it is making close to 300 HP at the wheels based on the ET and MPH. Any interest in running a 100 shot of nitrous? Should put the car into the 11s easy. Any interest in loosing any weight off the car? Which tires and what size? If you ever have the heads off the car then might as well mill the heads a bit as you might be a little low on compression for that cam... Have you read the chassis info here: http://www.v8buick.com/showthread.php?212126-TRACTION-score-card-and-tips&highlight=
I would like to see some flow numbers on those heads. Might as well if they are getting milled. Who knows, there could be a lot left on the table. Interesting stuff, I can't remember seeing any track times with the t/a 310 before this
I am at work or I would post the details of the below combos but they both had 310 cams and ran 11s in the quarter: Mike Williamson ran a 350 with no power adders. with Poston intake, ported iron heads with oversized valves, flat tops with valve reliefs, TA 310 cam, ported manifolds and full 2.5” duals NO X over: THis one was a mild build, with mostly stock parts. It is featured in my upcoming book. basic build with a 310 cam and a small nitrous shot:
Very nice! I read somewhere that the Buick 350 prefers temperatures between 160*-185*, and the closer to 160* the better. Would be nice to see those head flow numbers. You could see where your ideal I/E ratio would be. Your car is very impressive, but I feel confident that there's still plenty on the table with that straight pattern cam you're using. You could just leave it as is and just tweak it here and there and have fun, but if you ever want to do some calculations for your combination, I'm sure we could come up with an optimal match. :TU: ---------- Post added at 01:33 AM ---------- Previous post was at 01:28 AM ---------- Nitrous would be very beneficial to an engine running a 310 cam.
*--Dauntless,..my budget minded idea was not to build a short block but to put a bunch of good parts around it to see what we could accomplish.. Go back to my first post and look at the few good parts that were listed...a old poston deep oil pan and ported & shaved big valve heads,. some people may not spend money on, but we all know ported heads make a engine combo work better... -All the engine components were new but bought at a very cheap bundled price at less than $900 including the heads...and headers, already had the 850 holley.. my adj. push rods still cost me $180,.. Im trying not to steer anybody wrong here, but everything was bought second hand or traded for... *--Drag Radials were used at 15 lbs pressure *--Sean,..I was thinking the HP at 375- 380,..it has low comp. maybe 9.4 or 9.5 could be 9.7,.. heads shaved .030 and a .020 steel shim head gasket, and nitrous probably wont happen,..tires are 275-60-15,..also to 60 ft. better, it will need more conv. and drag shocks set up and then might see some 1.60 or 1.70 60 ft times and some 12:90's at 104,.. also working the timing and carb.. *-- Gary,..The motor liked 160* to 170* temps,.. I found the head flow sheet the guy was given and it said 205 at .500 lift this was 12 yrs ago at a shop that know longer exist,.. the heads look impressive and probably a basic 3 angle valve job on the 1.92- 1.55 valves...Who knows what kind of flow table they had or it was a guess,.. I think there more around 220 ish or more.. I do my own ported big block heads, so I do know what areas to look at in the ports for good flow,. *--We will probably play and tweak it, maybe some drag shocks,.. loosen the sway bar and lower the rear tire pressure for some lower times... *--Thanks for the advice...
Could you tell if the short turn radius had been worked on the exhaust runners? This is a key factor in determining whether the I/E ratio will be closer to 75%. Doesn't matter really if you're just going to play around with it and not worry about getting the most out of it. TA310's overall duration and overlap will help overcome the lack of duration emphasis on exhaust at higher RPMs, plus any nitrous will help that too. Have fun and be careful! :TU:
-Gary,. I didn't take the valves out, but felt as far down to the short turns to see if they were smooth and they were.. How far they were moved back I couldn't tell.. -Honestly, if we had a convertor that would stall at 3000 with the suspension relaxed, the car would have went 12.90's with a good hook...also maybe an open spacer for the carb instead of the 1" 4 hole... Im still pleased with the out come, and hopefully this thread may help somebody else...
Jerrold I totally understand this is a budget build and that is what I like so much about it, and it is what makes this so impressive. Many people feel the cheapest way to make power is to build a chevy 383 and run 12's all day. What you have shown is that the SBB is a viable go fast for less alternative. low 13's, high 12's is nothing to scoff at. Many mild big block guys find themselves running similar numbers. This is with iron heads with an unknown level of porting, relatively low compression, a hefty cam, stock short block and 3.73s. This is totally achievable for $5000 or less. Pennies for Buick performance.
Maybe try one of those combo spacers, the ones that start out as 4 hole and flare out into a semi-open, while moving the divider down a bit on that TA intake. You'd have to get a higher stall though so you could launch higher and shift a bit higher, would probably improve E.T. and MPH.
Gary,the car(engine) is together,all he has left is tuning the combo he has in there NOW. He's not looking for hindsight advise on what cam you think he should change it to,he's running the cam he got a deal on. I personally heard the car run yesterday,and it sounded dam good! And the engine looked dam good too. Chandler's dad Jerrold is no slouch when it comes to tuning Buicks,in time he'll have that car in the 12s. Theres no huge hurry for that,Chandler is only 17 years old right now,and he still drives the car on the street,winter is on its way,and the track will soon be closed for the year too.(its not an all out race car,so theres time for tuning later) I think the kid has an awesome 1970 Skylark that is faster than most production cars that are built today(and he did a great job driving at the track). Even with the "lower" mystery compression ratio the car has way to much low end torque that spins the 28" tall drag radial tires with the 3.73:1 gears. Very close to the optimal street/strip 9.5:1 1st gear multiplication ratio,at an actual of 9.3996:1. With that said,a 2" open carb spacer would probably be the way to go,to kill some of that low end,and give a tad more up higher until he can get the suspension dailed in more for the combo. With everything optimized,I think this car has the potentail to go as low as the 12.60s,and if anyone can get it there,I would say Chandler and Jerrold would be the ones to do it.:TU: All in all a great first run for the car,with more potential to realize in the future.:3gears: A pic of Chandler's street after making elevens,LOL:TU: Applying road sealer the old fasion way.:Brow: And them are some looonnnngggg elevens! View attachment 271698
I suggested that spacer because he said he might try out an open spacer. I know the engine's together and he's making what he has work. That's already been established. I wasn't suggesting he remove his cam and put in another one unless he was wanting to tweak it, which he doesn't seem to want, so everything's Mr. Tinker. :TU: Getting the engine into higher RPMs will enhance the cam's full potential, which is why the open spacer was suggested, along with a higher stall if he wants to go that route. ---------- Post added at 12:14 AM ---------- Previous post was at 12:10 AM ---------- Instead of a 2" open spacer, I wonder how two 1" spacers would work: an open spacer on the bottom with a 1" combo spacer on the top for better fuel atomization. :bglasses:
Yeah,I seen that beast lay down those "elevens" in the picture and for sure needs to kill some of the low end torque,what you suggested would still make it want to make the torque down lower than an open spacer would.o No: He would have to try what he has I guess. Derek
Alternatively, I could just go back and delete all my comments so you won't have to regurgitate them in your own suggestions while implying that I'm degrading his combo (which I'm NOT), if it will put the wind back in your sails... Not trying to steal anyone's thunder here. You must really like me or something. Every time I turn around there you are trying to **** with me. I hope you don't resent my ability to debunk every single BS theory someone comes up with with facts and logic. I try to keep the forums as clean of disinformation as I possibly can. Nothing personal to anyone.
