65sohc
Well-Known Member
- Joined
- Feb 7, 2015
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- Location
- Fresno, CA
- Vehicle(s)
- 2016 GT350
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- #16
And chasing HP numbers is somehow a bad thing?If your chasing HP numbers, SURE!
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And chasing HP numbers is somehow a bad thing?If your chasing HP numbers, SURE!
Did I say chasing HP was a bad thing? I don't think so. I rather spend the money on track time as that will assure me a consistent and faster lap times then say I added 10 HP.And chasing HP numbers is somehow a bad thing?
I sleep better knowing I'm not leaving 10 hp on the table.Did I say chasing HP was a bad thing? I don't think so. I rather spend the money on track time as that will assure me a consistent and faster lap times then say I added 10 HP.
Did I say chasing HP was a bad thing? I don't think so. I rather spend the money on track time as that will assure me a consistent and faster lap times then say I added 10 HP.
PMAS was supposed to send me two to test and report back on, a tune and a no tune, but as of yet they have not. The JLT flows better than stock, though I'd say it is still somewhat of a compromise. The best intakes use some sort of a bell mouth at the inlet to minimize turbulence and provide the cleanest possible signal to the MAF sensor. JLT uses a straight tube which could potentially create turbulence. To minimize this the filter has an internal, multi-layer stainless steel mesh. Older style factory MAF housings incorporated this type of screen and were often found to be quite restrictive. I suspect that is why the reading I got was somewhat higher than expected. Steeda uses a machined billet velocity stake in their intakes. The one I tested on my Boss had a negative pressure of around 6-8 inches of water which, for all intents and purposes, is zero restriction. Unfortunately they don't make an intake for the Shelby. We're not talking about big differences here, but differences nonetheless. PMAS also uses some sort of velocity stack design. I only wish they would send me one to evaluate.65soch - did you ever have an opportunity to test any other intakes? Would you recommend this one over others?
Fair enough. Thank you for the info. I am very curious if they will ever get around to sending you one. I'd love to hear the results.PMAS was supposed to send me two to test and report back on, a tune and a no tune, but as of yet they have not. The JLT flows better than stock, though I'd say it is still somewhat of a compromise. The best intakes use some sort of a bell mouth at the inlet to minimize turbulence and provide the cleanest possible signal to the MAF sensor. JLT uses a straight tube which could potentially create turbulence. To minimize this the filter has an internal, multi-layer stainless steel mesh. Older style factory MAF housings incorporated this type of screen and were often found to be quite restrictive. I suspect that is why the reading I got was somewhat higher than expected. Steeda uses a machined billet velocity stake in their intakes. The one I tested on my Boss had a negative pressure of around 6-8 inches of water which, for all intents and purposes, is zero restriction. Unfortunately they don't make an intake for the Shelby. We're not talking about big differences here, but differences nonetheless. PMAS also uses some sort of velocity stack design. I only wish they would send me one to evaluate.
Thank you for the detailed information and testing. On the dyno though, the difference between the stock CAI and the JLT CAI was only 3HP after the car was tuned. We did a specific tune for the JLT, dyno runs on the same day after a cool down and that was the max gain, nothing of real importance under the curve either.I just finished the comparison. I ran a piece of silicone tubing from the breather fitting on the intake elbow into the cockpit where I connected the other end to a water column manometer. I then did several WOT accelerations to 7500 in second gear while my wife took the pressure readings. The results:
stock: 21 inches of water
JLT: 12.5 inches of water
To put this in perspective, a difference of 8.5 inches of water equals .02 atmospheres.
.02x526hp=10.5hp This would be the gain one could expect as a result of the reduced pumping loss.
So you are running the stock cai with a tune? What was the overall power gain with the stock cai?Thank you for the detailed information and testing. On the dyno though, the difference between the stock CAI and the JLT CAI was only 3HP after the car was tuned. We did a specific tune for the JLT, dyno runs on the same day after a cool down and that was the max gain, nothing of real importance under the curve either.
I decided to keep the stock CAI as it does not stand out at the dealership during service. ;) Nothing against JLT, I use their CAI kits on my other Cobras, plus their V3 Oil Separators on my GT350. I just did not see any real gains above the stock unit with a tune and spent the money on suspension improvements.