Well one would think it would help since the tb neck sharply contours around the oil pressure sender so soon after the tb...I am thinking it would give the incoming air charge an overall smoother transition to the plenum...So I for one belive it would work to some extent....Of coarse removal of te tb provision would help....
__________________ Lorenzo
'06 CHEVROLET Monte Carlo SS 53A4"Black Whale"
K&N Drop-In, Hooker AeroChambers Sans Resonator Gibson 3.5 Slashcut Tips, Sltted and Crsdrild Rtrs, Rotatd Torq Strut Mnt, F&R STB
Local autoparts store....I asked 6 inches of it at PepBoys and the guy gave it to me.
Quote:
Originally Posted by Count of Monte Carlo
Well one would think it would help since the tb neck sharply contours around the oil pressure sender so soon after the tb...I am thinking it would give the incoming air charge an overall smoother transition to the plenum...So I for one belive it would work to some extent....Of coarse removal of te tb provision would help....
Yeah the TB sits in a funny location, but I can't put words to what this piece does mathematically or scientifically, but I think it added some SOTP horsepower, and I've said it before, I'll take all I can get.
Local autoparts store....I asked 6 inches of it at PepBoys and the guy gave it to me.
Yeah the TB sits in a funny location, but I can't put words to what this piece does mathematically or scientifically, but I think it added some SOTP horsepower, and I've said it before, I'll take all I can get.
added plenum volume should, in theory, add torque all over the place with our cars being intake limited (IMO) vs being head/cam limited. What the hell, I am going to order one now. When I get it, I will scan how much air it is ingesting at WOT before and after install, that should give a decent indication if it helps make more power.
BTW, went through Amazon instead. Was a total of $106.80 including shipping/handling vs Summit's less palatable ~$119.90
__________________ -Douglas
"Fear is a feeling, not a barrier." -me, 1998.
2006 Impy SS, LS4 transportation appliance 68K (Ultra-flo's, spacer, CQL rockers, etc).
1996 Fleetwood Brougham LT1 99.99K.
1995 Caprice 9c1 LT1, 238K (in more than one piece)
1985 Honda VF1100S, for those days when you just have to crank off an 11 second quarter-mile. 22K
Well I had a Summit Racing gift card laying around and I have probably everything I could buy for my MCSS from there so I decided to put the money towards the TB spacer. I installed it today and it was a 30 minute job and went rather smoothly.
I went for a cruise and noticed a whirling, whistling noise that comes from this thing that sounds like a turbo under load, and then once the car reaches a certain RPM, it sounds like the "turbo" blows off. I felt more power at the top end of each gear, low end felt about the same. However the top end of 2nd and 3rd are now a lot stronger and pull the speedo upwards much faster. If you have an extra 100 bucks layin' around then I recommend this mod.
And know one believed me before!
__________________ 2007 Pontiac Grand Prix GXP
K&N CAI | MSD LS1 Spark Plug Wires | Air Raid TBS | Hogan Down Pipe (With High Flow Cat) | Magna Flow Exhaust
Crane 1.8 Roller Rockers | 20 Inch Niche GT | Falken FK 452 ZR | HP Tuner | Performance Poly Motor Mount
Haha guys....I don't know if the results will be this stellar across the board. I tuned to spin my mill higher than stock along with a modded valvetrain (HS 1.8 Rockers/Comp Springs and Pushrods). So maybe I am seeing the full benefit of top end airflow?
Haha guys....I don't know if the results will be this stellar across the board. I tuned to spin my mill higher than stock along with a modded valvetrain (HS 1.8 Rockers/Comp Springs and Pushrods). So maybe I am seeing the full benefit of top end airflow?
Still the stock springs, but my Crane Quick-Lift's open my valves faster, longer, and higher (at all points other than max lift) than your HS rockers. Hopefully I will see some measurable results.
__________________ -Douglas
"Fear is a feeling, not a barrier." -me, 1998.
2006 Impy SS, LS4 transportation appliance 68K (Ultra-flo's, spacer, CQL rockers, etc).
1996 Fleetwood Brougham LT1 99.99K.
1995 Caprice 9c1 LT1, 238K (in more than one piece)
1985 Honda VF1100S, for those days when you just have to crank off an 11 second quarter-mile. 22K
Not so! Badd and I both commented that we were interested in the other thread.
__________________ -Douglas
"Fear is a feeling, not a barrier." -me, 1998.
2006 Impy SS, LS4 transportation appliance 68K (Ultra-flo's, spacer, CQL rockers, etc).
1996 Fleetwood Brougham LT1 99.99K.
1995 Caprice 9c1 LT1, 238K (in more than one piece)
1985 Honda VF1100S, for those days when you just have to crank off an 11 second quarter-mile. 22K
Over the last year or so, I've been reading up on certain aspects of intake and exhaust manifold design. While the volume of the intake plenum is acknowledged to have an effect on performance, I haven't really seen anything conclusive on this, so am not totally convinced that a few extra cubic inches volume in the intake neck will really have much of an effect.
It seems to me that much of the "tuning" involved in intake manifold design is concentrated on the runner length and size. The thing is that the extra length/volume added to the plenum doesn't affect the frequency of standing pressure waves and harmonics in the runners: that is determined by the runner length.
Here's a couple of interesting links on the subject:
Still the stock springs, but my Crane Quick-Lift's open my valves faster, longer, and higher (at all points other than max lift) than your HS rockers. Hopefully I will see some measurable results.
I've been thinking of switching to the Crane's, how often do you have to tear the valve covers off and adjust them? I remember some sort of initial headache way back when with scarlett and the old crew.
I've been thinking of switching to the Crane's, how often do you have to tear the valve covers off and adjust them? I remember some sort of initial headache way back when with scarlett and the old crew.
Never. Once I threw out the crappy directions Crane provided for the install and installed them just like any other small block. It did take a few weeks for the oil-restrictor pushrods included in the kit to stop making noise, but since then it is quieter than stock with the exception of a cold start on very cold days, then it takes about 15 seconds for them to quiet down. I have maybe 35K miles on them now (from memory). Never had the covers off after that.
__________________ -Douglas
"Fear is a feeling, not a barrier." -me, 1998.
2006 Impy SS, LS4 transportation appliance 68K (Ultra-flo's, spacer, CQL rockers, etc).
1996 Fleetwood Brougham LT1 99.99K.
1995 Caprice 9c1 LT1, 238K (in more than one piece)
1985 Honda VF1100S, for those days when you just have to crank off an 11 second quarter-mile. 22K
