COLD AIR INTAKE NEXT LEVEL OF PERFORMANCE?
12-03-2010, 09:44 PM
#121
Mark, I have spent the last 2 hours going over all the posts on this electric boost. Not much about the 968NA. Have you had anyone experiment with your product on a 968? I have done the airbox mod to get more flow. It sounds like if I would install the e-ram I would need to find a factory airbox without the holes. Another question, does it matter how well your exaust flows? I would think that with more air going in, a less resrictive exaust would compliment the product.
12-03-2010, 09:46 PM
#122
Burning Brakes
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Mark,
I can try the 4inch instead of larger tubes.Out back the long cone filters have to go in 4" which take up some of the internal area.Also flipped the elbows as that brings the fans closer less open area.The bottom picture is about 4inchs longer per side as that will be cut down also.
I can try the 4inch instead of larger tubes.Out back the long cone filters have to go in 4" which take up some of the internal area.Also flipped the elbows as that brings the fans closer less open area.The bottom picture is about 4inchs longer per side as that will be cut down also.
Last edited by inactiveuser1; 05-06-2013 at 12:25 AM.
12-03-2010, 10:40 PM
#123
Nordschleife Master
Custom Cold Air Intakes
12-03-2010, 11:05 PM
#124
Nordschleife Master
12-05-2010, 04:44 PM
#125
Burning Brakes
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Checking the fit on the larger filters.If anyone is thinking of the large 5inch out back this is what it would look like.
You would need a good angle on the Y pipe and then some rubber adapters from the Y to the 5inch canister or flange the sides of the Y pipe.
Not that I am running this setup wanted to check fitment for 5inch with the Y pipe.
Top picture front view
Middle picture driver side view
Bottom picture passenger side view
You would need a good angle on the Y pipe and then some rubber adapters from the Y to the 5inch canister or flange the sides of the Y pipe.
Not that I am running this setup wanted to check fitment for 5inch with the Y pipe.
Top picture front view
Middle picture driver side view
Bottom picture passenger side view
Last edited by inactiveuser1; 05-06-2013 at 12:25 AM.
12-05-2010, 11:37 PM
#126
Rennlist Member
you know, we never tested, but the absolute best results we could find were on a 3.2 porsche AFM version. the hot wire of the 968 might be a concern for getting the same gains, but it should work just the same. It has on other hot wire cars. the 3.2 liter M3 bmw gained about the same as well, and that was at 8500rpm as well. (near 10hp), but that wasnt the same percentage as it gained on the 3.2 porsche which also gained 10hp, but it was on top of 200rwhp as a base line. It should work just fine, if 10hp is what you are looking to get. yes, the intake box shouldnt have any holes in it . 
in fact, it has to be able to hold a pressure, which sometimes the stock boxes do, but the 928 is nortorious for leaks. In fact, after many tests, I found that the stock box only produced .25"Hg at WOT, but with the box sealed, we measured .5" Hg. this means .25Hg was a result of unfiltered air. however, with the air box sealed and the eRAM installed, we got near 1/2psi positive pressure under the same conditions. (this was on the 232rwhp 928)
in fact, it has to be able to hold a pressure, which sometimes the stock boxes do, but the 928 is nortorious for leaks. In fact, after many tests, I found that the stock box only produced .25"Hg at WOT, but with the box sealed, we measured .5" Hg. this means .25Hg was a result of unfiltered air. however, with the air box sealed and the eRAM installed, we got near 1/2psi positive pressure under the same conditions. (this was on the 232rwhp 928)Mark, I have spent the last 2 hours going over all the posts on this electric boost. Not much about the 968NA. Have you had anyone experiment with your product on a 968? I have done the airbox mod to get more flow. It sounds like if I would install the e-ram I would need to find a factory airbox without the holes. Another question, does it matter how well your exaust flows? I would think that with more air going in, a less resrictive exaust would compliment the product.
12-10-2010, 01:30 PM
#128
Rennlist Member
whos car was that?? cis?? any gains measured? looks great,and takes advantage of the hoodlight air intake i would imagine. probably more effective though, to draw from the base of the windshield.
and use the stock air vents intake tubes as I have. the stock stuff worksvery well when modified slightly
and use the stock air vents intake tubes as I have. the stock stuff worksvery well when modified slightly
12-10-2010, 02:16 PM
#129
Nordschleife Master
Mark,
Post 128 is picture of a local AZ Desert Shark member. A S2 euro. That CAI was built be Dan Warner - owner of Exotic Motorwerks here in Phoenix
If you click on the link in post 123 - you can see how he fab the CAI for my track car.
Dan mentioned that on his track shark - he saw a 20hp gain. Dyno proven. Sorry i do not have the chart to post
Post 128 is picture of a local AZ Desert Shark member. A S2 euro. That CAI was built be Dan Warner - owner of Exotic Motorwerks here in Phoenix
If you click on the link in post 123 - you can see how he fab the CAI for my track car.
Dan mentioned that on his track shark - he saw a 20hp gain. Dyno proven. Sorry i do not have the chart to post
Last edited by Drewster67; 12-10-2010 at 03:09 PM.
12-10-2010, 06:24 PM
#130
Rennlist Member
20hp?? would love to see that dyno run!
the reason Im sckeptical, is that I was able to bolt on a huge 3.5" pipe and a 3.5" cone filter WITH a bell mounthed inlet, poking straigth up. (same thing basically, without 3 feet of tubing) guess what I saw for HP gain?? ...... 4 hp loss. put back the stock vented air box and kn , 4 hp came back.
the problem here is, I dont know if the venting helped that much for static runs. certainly at speed, its got to be better.
looks very nice though. I would love to see the before and after HP numbers. Liked the link! very cool install. need to hear or see the dyno numbers
too bad it not an intake system we can use on the Ljet versions. looks like it bolts on to the CIS systems a little easier.
Mk
the reason Im sckeptical, is that I was able to bolt on a huge 3.5" pipe and a 3.5" cone filter WITH a bell mounthed inlet, poking straigth up. (same thing basically, without 3 feet of tubing) guess what I saw for HP gain?? ...... 4 hp loss. put back the stock vented air box and kn , 4 hp came back.
the problem here is, I dont know if the venting helped that much for static runs. certainly at speed, its got to be better.
looks very nice though. I would love to see the before and after HP numbers. Liked the link! very cool install. need to hear or see the dyno numbers
too bad it not an intake system we can use on the Ljet versions. looks like it bolts on to the CIS systems a little easier.
Mk
Mark,
Post 128 is picture of a local AZ Desert Shark member. A S2 euro. That CAI was built be Dan Warner - owner of Exotic Motorwerks here in Phoenix
If you click on the link in post 123 - you can see how he fab the CAI for my track car.
Dan mentioned that on his track shark - he saw a 20hp gain. Dyno proven. Sorry i do not have the chart to post
Post 128 is picture of a local AZ Desert Shark member. A S2 euro. That CAI was built be Dan Warner - owner of Exotic Motorwerks here in Phoenix
If you click on the link in post 123 - you can see how he fab the CAI for my track car.
Dan mentioned that on his track shark - he saw a 20hp gain. Dyno proven. Sorry i do not have the chart to post
12-10-2010, 09:51 PM
#131
Nordschleife Master
No worries being skeptical ...
Yeah, I wish I had a dyno run before and after my intake was installed. I will tell you this, my car WOKE up big time with this mod.
Dan is a pretty reputable guy so we when he said 20 hp, I believe him without a doubt. I know proof is required but still, it is a great way to add a few more ponies.
Warner does some pretty slick **** ....
Dan is a pretty reputable guy so we when he said 20 hp, I believe him without a doubt. I know proof is required but still, it is a great way to add a few more ponies.
Warner does some pretty slick **** ....
12-11-2010, 02:25 AM
#132
Nordschleife Master
A factor for seat of the pants measuring, my guess is that most of the non stock air intakes make a lot more noise, which can feel like hp.
Rather than dyno, I'd like to see 1/4 mile trap speed, so the aero and heat effects can start to show up.
Rather than dyno, I'd like to see 1/4 mile trap speed, so the aero and heat effects can start to show up.
12-11-2010, 10:53 AM
#133
Burning Brakes
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I did alot of track testing on the air intake on my car now in 1/8th mile only with ET and trap speeds.
1/8mile trap speeds on the intake I used was around 1 1/2 to 2 mph higher over the stock air intake.
Ran the car numerous times also and was 77mph never reached 78mph.
Modified air intake was up to 79.12mph.
Modified air intake with 4inch back section the car ran the fastest et and was almost 80mph at 79.81mph.
Was always tested with Autothority chips everything else is stock exhaust etc
Only other mods was the air intake.
Left column stock
Right column with modified air intake.
Bottom slips are with the 4inch tubes out back instead of 3 1/2inch which had the best ET of 9.40 and highest mph 79.81
Stock was always between 77mph and never seen 78mph.
1/8mile trap speeds on the intake I used was around 1 1/2 to 2 mph higher over the stock air intake.
Ran the car numerous times also and was 77mph never reached 78mph.
Modified air intake was up to 79.12mph.
Modified air intake with 4inch back section the car ran the fastest et and was almost 80mph at 79.81mph.
Was always tested with Autothority chips everything else is stock exhaust etc
Only other mods was the air intake.
Left column stock
Right column with modified air intake.
Bottom slips are with the 4inch tubes out back instead of 3 1/2inch which had the best ET of 9.40 and highest mph 79.81
Stock was always between 77mph and never seen 78mph.
Last edited by inactiveuser1; 05-06-2013 at 12:25 AM.
12-11-2010, 02:14 PM
#134
Rennlist Member
This is crazy. Ive installed things on customers cars, had them take them for a spin, and them coming back how it "woke up" only to find out i faked them out. (no change) lets face physics here. its all about optimizing air flow and lowering pressure drops forget the seat of the pants feel. you cant feel 5-10hp. the intake i tested was a huge gone filter bolted on to the MAF. in theory, it should be better than ANYTHING posted here. you can flow bench these designs, but of course, no one has done anything close to a real test. noone has even posted dyno hp numbers, before or after.
although these intakes look incredilbly nice, they wont flow more than a cone filter bolted directly to the intake. now, ram effect having them bolted on in the base windshield area or fender cavity, is a .08psi gainer. (less than 1%). So what is really happening here? the stock intake will flow more than most any 3.5" tube with a cone filter. we already have tested this and have a pretty controlled dyno to prove it. and we dynoed the stock intake after the test to make sure it was better. it was. again, this was a 3.5" pipe directly attached to the MAF, pointing straight up, and having a huge bell mounthed cone filter on it. we lost 4hp. put the stock stuff back on , gained the 4hp back.
So, certainly there is a chance that these intakes can work, but there has to be SOME logic as to why.
there also has to be some testing of the contraptions on a flow bench or simply a before and after dyno run. Trust me, if this was real, 20hp, I would go out and put one on my car in 5 seconds!! If anyone thinks an intake vs stock can produce more than even 10hp, i would buy it and then double the price to the seller in appriciation.
20hp?? common, i bolted on a full euro intake, and cams and got 36hp. I bolted on a full 6.5 liter vs a 5 liter and got 50hp. I bolted on a 5 liter on a 4.7 euro motor and got 40hp. an intake being in the same range as these dramatic mods? Pleezzz!
So many variables. paper filer vs KN on the stock air box, was it leaking, was the dyno run with the hood up or down, fans blowing at the dyno, so many factors to control. Someone will probably go to the dyno with a stock set up. do a run, do another run, get a baseline. THEN, take it all off in a few mins and bolt on the modified intake and do a run. if it gains anything, i would be surprised, but the most you might hope to see would be around 5hp, in the REAL world.
prove me wrong. please! I want one of these if they do work!!
mk
although these intakes look incredilbly nice, they wont flow more than a cone filter bolted directly to the intake. now, ram effect having them bolted on in the base windshield area or fender cavity, is a .08psi gainer. (less than 1%). So what is really happening here? the stock intake will flow more than most any 3.5" tube with a cone filter. we already have tested this and have a pretty controlled dyno to prove it. and we dynoed the stock intake after the test to make sure it was better. it was. again, this was a 3.5" pipe directly attached to the MAF, pointing straight up, and having a huge bell mounthed cone filter on it. we lost 4hp. put the stock stuff back on , gained the 4hp back.
So, certainly there is a chance that these intakes can work, but there has to be SOME logic as to why.
there also has to be some testing of the contraptions on a flow bench or simply a before and after dyno run. Trust me, if this was real, 20hp, I would go out and put one on my car in 5 seconds!! If anyone thinks an intake vs stock can produce more than even 10hp, i would buy it and then double the price to the seller in appriciation.
20hp?? common, i bolted on a full euro intake, and cams and got 36hp. I bolted on a full 6.5 liter vs a 5 liter and got 50hp. I bolted on a 5 liter on a 4.7 euro motor and got 40hp. an intake being in the same range as these dramatic mods? Pleezzz!
So many variables. paper filer vs KN on the stock air box, was it leaking, was the dyno run with the hood up or down, fans blowing at the dyno, so many factors to control. Someone will probably go to the dyno with a stock set up. do a run, do another run, get a baseline. THEN, take it all off in a few mins and bolt on the modified intake and do a run. if it gains anything, i would be surprised, but the most you might hope to see would be around 5hp, in the REAL world.
prove me wrong. please! I want one of these if they do work!!
mk
12-11-2010, 03:38 PM
#135
Burning Brakes
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1mph in the 1/8 mile doesn't sound like alot even 1 mph gained is equal to around 10 horsepower
Et isnt exactly the same on the calculator as our cars don't leave the line hard but looking at the mph
with the weight range of around 3600pds with driver looks like 10hp is very close to 1mph gain
http://www.wallaceracing.com/hp-correction-eighth.php
I used 284 for hp
3600 for weight
400 for track elevation
80 as temp
70% Humidity
It gives 79.82 mph
20 degress tempurature could effect 1 mph also.
This is only to show that to gain 1mph IN 1/8th mile which I tested it at.
It takes 10hp at the weight and conditions as shown.
5hp might effect et in 1/8th mile by about .05
On average would say gained et of around .05
I would estimate close to what Mark says 5 to 10hp from Cold air intake by looking at all the ET numbers.
ET shows about 5hp gain if using 274hp to 279hp(that shows gain ET of .05)
Mph shows about 10hp gain
My best mph with stock air intake was 77.99mph(Tested numerous years at the track also never went over that mph)
My best mph with cold air intake was 79.81mph
Et isnt exactly the same on the calculator as our cars don't leave the line hard but looking at the mph
with the weight range of around 3600pds with driver looks like 10hp is very close to 1mph gain
http://www.wallaceracing.com/hp-correction-eighth.php
I used 284 for hp
3600 for weight
400 for track elevation
80 as temp
70% Humidity
It gives 79.82 mph
20 degress tempurature could effect 1 mph also.
This is only to show that to gain 1mph IN 1/8th mile which I tested it at.
It takes 10hp at the weight and conditions as shown.
5hp might effect et in 1/8th mile by about .05
On average would say gained et of around .05
I would estimate close to what Mark says 5 to 10hp from Cold air intake by looking at all the ET numbers.
ET shows about 5hp gain if using 274hp to 279hp(that shows gain ET of .05)
Mph shows about 10hp gain
My best mph with stock air intake was 77.99mph(Tested numerous years at the track also never went over that mph)
My best mph with cold air intake was 79.81mph
Last edited by inactiveuser1; 05-06-2013 at 12:25 AM.