So it looks like my old LPE CAI was as good as a lid dyno rusults inside
07-13-2011, 03:29 PM
#1
So it looks like my old LPE CAI was as good as a lid dyno rusults inside After the dyno today. And it looks like my duals were worth quite a bit of power over the 2otl 
Baseline was 408rwhp, added a degree of timing and 412rwhp, another 1.5 degrees and it hit 418rwhp. It still wanted more timing but it was starting to detonate from sucking in oil through the pcv system. 
The back bumper was covered in oil droplets after the dyno. It made those #'s with 32-33 degrees of timing IIRC.
Only changes were going from true duals to a 2otl and going from an lpe cai to lid setup. The duals lost me power on different dyno's back when I was making 375rwhp through a hooker catback and never gained me anything at the track so who knows.
Baseline was 408rwhp, added a degree of timing and 412rwhp, another 1.5 degrees and it hit 418rwhp. It still wanted more timing but it was starting to detonate from sucking in oil through the pcv system. The back bumper was covered in oil droplets after the dyno. It made those #'s with 32-33 degrees of timing IIRC. Only changes were going from true duals to a 2otl and going from an lpe cai to lid setup. The duals lost me power on different dyno's back when I was making 375rwhp through a hooker catback and never gained me anything at the track so who knows.
Last edited by speed_demon24; 07-13-2011 at 04:40 PM.
07-13-2011, 05:23 PM
#4
IMO the only benefit from a lid setup on a 350 would be from any "ram air" effect at the track.
I always questioned the benefit of lids on stock cube cars, but people are so adamant about defending their mods I try not to make a big deal about it. Personally, I think the huge claims of 20hp+ in the 1/4 are bullshit.
I pulled my K&N FIPK CAI off of my throttle body during a dyno run when my tuner was chasing a dip in the graph and only made under 2rwhp more. Car was a mild H/C build. Stock cube engines just don't need that much air. How can a lid improve over an open TB unless its building boost?
.
It may be a worthwhile mod on a high rpm stroker, but even a H/C stock cube build won't benefit much.
I always questioned the benefit of lids on stock cube cars, but people are so adamant about defending their mods I try not to make a big deal about it. Personally, I think the huge claims of 20hp+ in the 1/4 are bullshit.
I pulled my K&N FIPK CAI off of my throttle body during a dyno run when my tuner was chasing a dip in the graph and only made under 2rwhp more. Car was a mild H/C build. Stock cube engines just don't need that much air. How can a lid improve over an open TB unless its building boost?
.It may be a worthwhile mod on a high rpm stroker, but even a H/C stock cube build won't benefit much.
07-13-2011, 05:50 PM
#6
IMO the only benefit from a lid setup on a 350 would be from any "ram air" effect at the track.
I always questioned the benefit of lids on stock cube cars, but people are so adamant about defending their mods I try not to make a big deal about it. Personally, I think the huge claims of 20hp+ in the 1/4 are bullshit.
I pulled my K&N FIPK CAI off of my throttle body during a dyno run when my tuner was chasing a dip in the graph and only made under 2rwhp more. Car was a mild H/C build. Stock cube engines just don't need that much air. How can a lid improve over an open TB unless its building boost?.
It may be a worthwhile mod on a high rpm stroker, but even a H/C stock cube build won't benefit much.
I always questioned the benefit of lids on stock cube cars, but people are so adamant about defending their mods I try not to make a big deal about it. Personally, I think the huge claims of 20hp+ in the 1/4 are bullshit.
I pulled my K&N FIPK CAI off of my throttle body during a dyno run when my tuner was chasing a dip in the graph and only made under 2rwhp more. Car was a mild H/C build. Stock cube engines just don't need that much air. How can a lid improve over an open TB unless its building boost?
.It may be a worthwhile mod on a high rpm stroker, but even a H/C stock cube build won't benefit much.
Oh well at least I cleaned up the engine bay. I might try to see if i can rig up some kind of ram air through the fog light openings since I'm running 1le grills there, but it looks like the bumper support is in the way.
Because the intake manifold and runners were still coated in oil. I'm just gonna ditch the pcv all together and run a couple of breathers.
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07-13-2011, 07:35 PM
#9
Just ditched the pcv system and put a couple breathers on to see if it coats the engine bay with oil or not. I might run the breathers + catch can if it mists too bad.
Last edited by speed_demon24; 07-13-2011 at 07:44 PM.
07-14-2011, 06:32 AM
#10
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Hate to tell you this, but all you are doing is masking a problem. If oil is getting into the cylinders enough for detonation there is a definite bad situation going on in your engine. If the oil is indeed coming from your PCV then your engine bay will be coated with oil guaranteed. I would suggest getting a leakdown done to see what is going on, dear boy. I won't say you are seriously down on power since your baseline was done on a different dyno, but you need to figure this out stat.
07-14-2011, 10:22 AM
#11
Hate to tell you this, but all you are doing is masking a problem. If oil is getting into the cylinders enough for detonation there is a definite bad situation going on in your engine. If the oil is indeed coming from your PCV then your engine bay will be coated with oil guaranteed. I would suggest getting a leakdown done to see what is going on, dear boy. I won't say you are seriously down on power since your baseline was done on a different dyno, but you need to figure this out stat.
07-14-2011, 10:31 AM
#12
07-14-2011, 07:13 PM
#13
I'm just going to run the SLP thing since mine is a daily and I'm in florida with daily monsoons. I'm going to to some water column testing on it to to see if it does anything.
Just ditched the pcv system and put a couple breathers on to see if it coats the engine bay with oil or not. I might run the breathers + catch can if it mists too bad.
Just ditched the pcv system and put a couple breathers on to see if it coats the engine bay with oil or not. I might run the breathers + catch can if it mists too bad.
07-14-2011, 07:20 PM
#14
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A good breather trick i learned on boosted vehicles for breathers will work well for N/A motors as well. Ya'll remember the old wrist sweat bands??? Well take a couple of black ones and wrap them around the breathers. If/when they get full of oil just pull them off and wash them. They keep the oil from leaking onto the VC's and engine bay. Just a FYI...
07-14-2011, 07:35 PM
#15
A good breather trick i learned on boosted vehicles for breathers will work well for N/A motors as well. Ya'll remember the old wrist sweat bands??? Well take a couple of black ones and wrap them around the breathers. If/when they get full of oil just pull them off and wash them. They keep the oil from leaking onto the VC's and engine bay. Just a FYI...
