416 LS3 Build Underway (Pics inside)
03-12-2017, 07:23 PM
#682
I personally think it's the best cast single four intake out on the market. The gains that have been seen going from the other regularly offered manifolds to the CID have been pretty impressive. That said, the major determining factor in how large the gains have been comes down to curtain area. Basically how much flow area the engine is seeing from valve diameter and valve lift.
The heads you have flow quite a bit of air, and they do also flow well at higher lifts. When you increase the area of the intake runner and the plenum volume on an engine that is built like this you can see substantial gains at higher engine speeds.
Thanks. We'll see how she does at the track come Spring.
03-13-2017, 07:56 PM
#686
It was recently tuned by Jim Moran at Speed Inc. Initial tuning was done by someone else. Thanks for the compliment.
Great, can't wait to see your results!
260's/280's Thanks for looking.
Great, can't wait to see your results!
:260's/280's
Thanks for looking. Last edited by BOLO; 03-13-2017 at 08:06 PM.
03-14-2017, 11:40 PM
#688
20-25hp gain is a lot though from what Bolo already has
Would need some 1/4 mile runs back to back with both intakes to see the real difference
03-15-2017, 11:55 AM
#689
There was a 360" LS7 headed engine with .850+ lift that gained 50hp peak to peak and 60+hp past peak going from a hand finished (the Mast intakes are CNC from Mast) Mast 4500 intake to an out of the box (CID intakes are as cast not CNC) CID 4500 intake. It didn't lose anything under the curve in the operating range of this engine which was 4000-7500RPM. It even increased power as low as 4000rpm and never once made less than the Mast intake from 4000-7500RPM across the entire RPM range, not just at 6000+.
John@CID has told me on engines with less than .700 lift it's not worth it, and even in the low .700 lift range the gains won't be substantial. If the valve lift isn't providing enough flow and area at the valve for the larger cross section and plenum of the CID intake to shine then the gains will be decreased drastically. It is possible for BOLO to see gains of at least 15-20hp IMO with the lift and duration of his camshaft and where the engine is making peak power currently.
With .750" lift at the valve, it's possible he could see the gains mentioned.
John@CID has told me on engines with less than .700 lift it's not worth it, and even in the low .700 lift range the gains won't be substantial. If the valve lift isn't providing enough flow and area at the valve for the larger cross section and plenum of the CID intake to shine then the gains will be decreased drastically. It is possible for BOLO to see gains of at least 15-20hp IMO with the lift and duration of his camshaft and where the engine is making peak power currently.
With .750" lift at the valve, it's possible he could see the gains mentioned.
Last edited by Martin Smallwood; 03-15-2017 at 12:17 PM.
03-21-2017, 08:01 PM
#690
There was a 360" LS7 headed engine with .850+ lift that gained 50hp peak to peak and 60+hp past peak going from a hand finished (the Mast intakes are CNC from Mast) Mast 4500 intake to an out of the box (CID intakes are as cast not CNC) CID 4500 intake. It didn't lose anything under the curve in the operating range of this engine which was 4000-7500RPM. It even increased power as low as 4000rpm and never once made less than the Mast intake from 4000-7500RPM across the entire RPM range, not just at 6000+.
John@CID has told me on engines with less than .700 lift it's not worth it, and even in the low .700 lift range the gains won't be substantial. If the valve lift isn't providing enough flow and area at the valve for the larger cross section and plenum of the CID intake to shine then the gains will be decreased drastically. It is possible for BOLO to see gains of at least 15-20hp IMO with the lift and duration of his camshaft and where the engine is making peak power currently.
With .750" lift at the valve, it's possible he could see the gains mentioned.
John@CID has told me on engines with less than .700 lift it's not worth it, and even in the low .700 lift range the gains won't be substantial. If the valve lift isn't providing enough flow and area at the valve for the larger cross section and plenum of the CID intake to shine then the gains will be decreased drastically. It is possible for BOLO to see gains of at least 15-20hp IMO with the lift and duration of his camshaft and where the engine is making peak power currently.
With .750" lift at the valve, it's possible he could see the gains mentioned.
Last edited by BOLO; 03-31-2017 at 09:23 PM.
04-06-2017, 09:53 AM
#694
I'm going to see if I can get to the track this Sunday. I'm still waiting on my new 5 pt seat harness, install fresh spark plugs, check valve lash and fresh oil/filter. Should be good to go
260's/280's LLSR
Last edited by BOLO; 04-06-2017 at 07:40 PM.
06-07-2017, 10:54 AM
#697
UPDATE:
Car never made it for track testing. Trans is toast from just making some test runs around the back roads. Looking into a built TH400 RMVB with a trans brake, new stall, driveshaft,shifter, and trans cross mount. This thing never ends.LOL.
Car never made it for track testing. Trans is toast from just making some test runs around the back roads. Looking into a built TH400 RMVB with a trans brake, new stall, driveshaft,shifter, and trans cross mount. This thing never ends.LOL.
06-07-2017, 02:47 PM
#699
TECH Senior Member
"Speed costs money, how fast ya wanna go???"