I think you are going to ROCK this weekend. the weather is going to be at 50 or so and I made my best runs in ROctober. Spin that baby to 6500 and lets see what happens I'm rootin for ya this may be the last blast of the season and the SP3 is on your shoulders buddy so let it all hang out. Take your extra rods with you for the carb. I would like to be there to help you out but my brakes went out on my daily driver and I have to work on that piece of crap. My nitrous run in my signature was done in October. Rock On Guy
Yes, the air gap design will keep the intake cooler, maybe too cool with the iron heads. That will improve when the SBB gets aluminum heads. Aluminum conducts the heat a lot faster. My SP1 gets warm pretty fast. I was toying with the idea of trying the SPX on my engine at some point. That SP3 is one good looking intake.
Before I get this thing to the track, I do have a butt dyno observation I noticed, from 40 to 60 in third gear, the acceleration is quick, very very abrupt, it jumps to 60 mph. Im pretty sure that's only on the primaries. It also revs to my 6 grand 1 to 2 auto upshift FAST, much much faster than the Stage 1. I remember watching the tach on the track for my 2 to 3 manual upshift, 5000, 5200, 5500, 5800, 6000 SHIFT, it took much longer with the Stage 1 I "think" the SP3 uncorked the intake tract, the engine can breathe! Now for the aluminum heads:TU: The SP3 is a sharp looking intake, especially in Buick red:Brow:
Get ready to hit 7 grand and shift and only goes back to 6 grand. Did you look at my dyno sheet, I was using a 2 inch spacer and still making power at 6200 still had about 365 hp at 6400. That 413 isn't that much smaller than the TA 510 I had in there. Your going to do 6500 easily I guarantee it. So shift at 7 grand for a grand ol time, It will handle it. I hit that rev limiter at 6200 with my now smaller cam that I know is done at 5800 when I had that nitrous on racing that Mustang from a roll at 35mph out of low gear. I hit that rev limiter instantly, Nothing blew. That was almost 10 years ago now, time is flying. So don't worry about blowing up by hitting 7 grand that intake is going to take you there, plus you have new springs in your heads. You have enough cam for it so show those Chevy and Ford punks up and those ricers too when you kick there butts with the little 350 old man's Buick.
As I get used to the set up, Im watching/noticing things, such as: Leaving off idle the convertor flashes to 3300, seems better than stalling it to say 13/1500 I noticed this last Sunday morning while test driving/launching on a business parkway to eliminate my bog on launch. So much to learn, tweak, practice. FUN THO:grin:
Did Michaels build your motor and do you know if it has been balanced? you are probably getting a better launch off idle with a little bigger pump shot since you have not pushed on the gas a little which uses up part of the pump shot stalling it to 1500 rpm. On the Holley you can reset the pump shot cam to give a full pump shot from the rpm you launch at.
I have noticed the same thing rpm's come up real fast there's a lot going on from dead stop,keeping the car straight not spinning the tires an not going past your red line.GSJOHNNY warned us this would happen an sugguested a rev limiter. Mark good luck tomarrow we all here will be waiting for your results.
Michaels decked my block and did some other machine work, but I do all my own engine assembly. I don't think the rotating assy. was balanced, except by Buick. If it means anything, I've never noticed anything weird, strange or any vibrations at 6000 rpm. The engine is quite smooth.
While double checking things under the hood this morn. before Thompson, I noticed there wasn't any psssst psssst from the pump nozzles when I checked the throttle, hmmmm, carb is dry. That could be the reason for my long cranking to start after sitting a few days. Only thing I can think off is my new pump to carb fuel line set up, braided line from pump to Russel filter, then braided line to Q-Jet. No filter in Q-Jet anymore, is it possible the bowl is slowly draining dry after only a few days? After its up and running, all is well.
It would seem that way, the bowl is drying up some after sitting a few days. You may have to heat the tires a little more than normal since it is cold out. If you spin off the line take pressure down, start at 22 lbs and work it down to 18 if you have too. The pressure is at 30.15 now high pressure is over us now the runs should be good. So try off idle and slamming it to the floor and try from about 1000, 1500 rpm and 2 grand might be too much for ya but might be worth a try if time permits. There should not be too may people there since the regular racers won't be there, there will be test and tuners there. Make a run right away if you can with out much cool off then try and let the engine cool off for about a half hour and try to time it to get in right away before the engine heats up too much, 180 should be about perfect. With the TA intake with the crossover heat working I had to let mine cool off to 150* then I would start the car up and shut off as I moved foreword to the staging lane. I would try to stay at 150 Inch up to light the second second bulb on the tree and the moment it lights up stop and you will get your best runs. Do not let the car creep up it will slow your ET down. I think you can spin it to 6500 but you said you were not balanced by a race shop so I would not let it get higher than that. put rev limiter at 64-6700 if you can. If it seems like it will go higher you may want to try but I want you to be able to drive home too. Keep a good eye on the oil pressure. Good luck make us proud rock on Guy
Ok here are MY results from the SP3 this morning, real world, no BS, or butt dyno. #1 14.57 @ 86.35 mph........ no bog, left at idle #2 14.52 @89.61 mph.........1/8 turn looser on secondaries, no bog, ok getting somewhere #3 14.41 @88.38 mph.........another 1/8 turn looser on secondaries, still no bog, getting better #4 14.29 @ 88.72 mph........Added another 4 deg timing for a total of 34/35 deg, no bog, pulled hard Honestly Im a bit disappointed, but Im thinking on the way home, the intake is a major part, and the tuning process has to start all over, same scenario as the Stage 1 intake. Theres WAAAY more in it, but the staging lanes were being closed at 1:10 for the gamblers race, so we called it a day. But at least Im heading in the right direction as far as finding out what the engine wants. I think the Q-Jet is ok with the SP3, just needs dialed in, whats funny is on the street I was tightening the secondaries, on the track Im loosening 'em The street and track are two TOTALLY DIFFERENT WORLDS!!!! I like the track better:laugh: Oh I was shifting at 6000 outta first and 6200 into third, didn't seem to want to pull much past 6000 actually. Im wondering if Im experiencing lifter crash, or whatever, even on the highway cruising at 32/3400 rpm I can hear the lifters chattering, been that way for awhile, any ideas?
Mark i don't know if you have roller rockers or not if you do maybe need a preload adjustment . If you don't check your rockers. Is there any chance when you had your intake off for the swap did you look at your cam lobes for signs of wear? At one time i ran the TA 413 but it failed that is why i switched to a roller cam not going through that again . I hope this is not the case for you. But you got to run at the track and nothing broke an made several passes with improvement on each pass which is the right direction. I'm sure some one else will chim in with some advice . The main thing here is did you have fun!
Looks like it may be time for an A/F gauge to see where you're at? That might be a good thing to put on your X-Mas list? Anyway thanks taking the time for posting the results, I can't hardly wait until next year to see what it will do with some tuning. This intake may turn out to be more race than street after all? To bad you didn't do some testing un-ported first to see what "out of the box" could do before porting it, you might of had it opened more than your engine wanted? Then again it might be just right for the new aluminum heads if they ever come out. Derek
Like Derek said, air/fuel meter. Sounds like your waaaaaaaaaaaaaay off on your mixture. Open plenums like way more pump shot and richer jetting. Maybe a little more advance. What were your 60ft times? Any spinning?
Wow, hard to believe you went front 13.65 down to low/mid 14's when you thought the seat of pants was much improved from the stage 1. uzzled: Hope you get it dialed in. Your combo should benefit with the s/p. Maybe a mech. secondary, square bore carb of generous cfm would play out better for you.
I do have the TA roller rockers, I may call 'em and ask about their hybrid solid method. I did look at the cam, and took a few of the lifters out one at a time, they looked good, barely visible circular pattern on the base. So as far as cam health it looked good, Im just wondering about the lifters if their staying at "full size" or collapsing and reducing the size of the cam. I maaaaaaaaaay try again next Saturday, they announced they'd be open weather permitting:grin:
X2, me thinking the same thing about the SP3 being more "race" At least Im going in the right direction as far as going quicker, BUT, I need quicker than 13.65p I enjoyed testing this thing, just a bit disappointed in the results, but it is what it is for now.
No spinning that I could tell/feel Air pressure in the MT's was 18 lbs Best 60' was 2.04 on run #4....... 34 total timing Worst 60' was 2.10 on run #1...... 30 total timing All runs were made leaving at an idle, the convertor will flash to 3300 this way
