Thread: 43 more Horses.. INCREDIBLE !!! I'm blown away !!

10-15HP, or 10-15WHP? 10-15HP at the crank is ~5WHP.

I have seen dynos that show 10-15 at the wheel and no aftermarket company is doing to spend the time and money to rip an engine out of a car to test the horsepower at the crank!

Hey, if that's the case, I have no problem with being wrong. When I started this discussion I was speaking more in general terms of CAI's on this car. Two things to consider however. First, it's hard to say whether the gain can be attributed to increased airflow or just the leaning out of the air/fuel ratio. Also, the ram air benefits of the factory intake would never come into play on a stationary car on a dyno, regardless of how many fans are blowing on the front end.

however, I don't buy there is that much restriction on the stock intake setup that a CAI will magically flow tons more air

I'm not upset or anything but just for the record.. I didn't say anything about a super load of extra power for a CAI. Just said that a CAI reduces paracitic losses, in phlenum turbulence and intake temperature. How much gain a CAI will produce, in fact any intake, is based on more variables than just air charge and intake temperature. Everything from ambient temp, altitude, ambient air density, ambient air pressure, manifold temperature and a wack load of other things. Not to mention every car performs differently no matter how they are machined.
The main point was to state that a CAI does not produce negative results in most applications. And yes, when the pavement heats up, it'll warm the air above it and reduce it's density, that will produce negative effects. The same issue happens when air is too dense or cold.

Also, a degree of air turbulence is required by your engine. Gas doesn't burn, the vapor does. By injecting gas into the cylinder during the intake cycle the turbulent air rushing past the valves, mixing with the fuel and then when the mixture reaches the bottom of the cylinder the shape of the head will modify the air/fuel to maximize atomization turning the gas into more vapor for burning. Does this mean the ribbed plastic intake is a good thing? No. It's ribbed like that to reduce vibration to the solid mounted OEM intake box. No dampeners means more body vibration. Will you feel it or notice the additional vibration? Don't know, I still have my accordian.

Cold Air Intakes are THE number one modification. Thats why companies charge an arm and a leg for them, they are the staple diet of performance modders. Are they worth their 300$+ price tag? I don't think so. They're made out of bits of tubing and rubber/silicone. Like Porche 911, you're paying for the name.. but lets face it.. it's the same now as it was when it came out in 1963. If Mustangs can get CAI's for 74$, why can't we?

I think we really agree. I said that wrong and wasn't really speaking to your post. I just like to look at things a little more in depth instead of just getting things because other people do. I think we've taken this thread off topic enough though. I really only posted here to begin with just asking why a flash for the 3.8 would be so different for a CAI equipped car versus one without. It just doesn't seem like a significant modification by itself to warrant a separate flash I guess.

Like I said earlier, I know it's not a popular opinion, and I'm fine with being wrong. I just prefer to discuss this sort of stuff like we have rather than just take it at face value. That is how I learn about this car and the effects modifications will have. I plan on keeping this car for longer than most as well.

I didn't even know that that was your question.

Different flash for different variables is my guess. Potentials are different or maybe in the case of the GC there is enough volumetric difference in air charge. Maybe its to change the timing action to take better advantage of the extra air for scavaging. Honestly, no idea except for what I just said. Maybe Arvin@Poweraxel can explain. I can understand why you would need to input different flashes on the Turbo for intakes and exhausts.

Originally Posted by redV6

Hi Codefox,

Yes, if you do exactly what I did and if I remember correctly you live in Jersey so you have the option the same shop I did (or another similar reputable shop), I would feel confident that you will be very happy with the results and likely beat your friends Mustang GT.

OK, now back to work for me... I keep playing around here and this doesn't help pay the bills, but I do enjoy sharing what I learned through experience and actually "doing it"...

Hi All,

OK so now that we have various opinions on how power can be increased and what the NUMBERS" show and what various manufacturers claim, I can now really a "real life" experience I had yesterday on route 280 in New Jersey.

I saw a Blue Genesis, firs tone I saw !! He saw me and I noticed he had a 3.8. Not a track edition, no spolier... I have a spoiler, but only because that was my final negotiation point. My car is a 380GT with the Nav and Bluetooth

Anyway, we were initially stuck in some traffic and both trying to jockey our way out of it to clearly race each other. It was evident this was going to occur.

We broke through virtually simultaneously and we went for it... Exciting !! racing another Genesis coupe with some room to let it fly !!! He was initially ahead of me by a couple car lengths... within a few seconds I passed him pretty convincingly and cut down to the left lane to get ahead of him to see if he can stay with me... As a note, I didn't "blow him off the road". I mean a stock Genesis still kicks ass.... He backed off at about 100 MPH and I slowed at about 130 MPH. Nice race and clearly demonstrated to me how "noticeably" quicker, via additional torque and Horse Power, gave me a substantial edge in this "mini road race". Yes, I know it wasn't on a track, it was real world. Had he tried to keep up with me, maybe more could have been determined.

redV6

Hey Red,

Just bought my own GC 3.8Track Auto with the 6speed trans and was looking to do some mods myself. The 43 HP gain is pretty substantial. I have been looking into pretty much the same mods you seem to have. But I wanted to clear up some questions I had about your ride.

Do I understand you correctly that the only mods you have done with the car are the CAI and the Power AXEL flash? You didn't update the exhaust prior to this, change the injectors, headers or any other components?

Not disputing your claims, just want to be sure the only mods you have made were the CAI and the Flash.

Tks

Originally Posted by ksaun

Hey Red,

Just bought my own GC 3.8Track Auto with the 6speed trans and was looking to do some mods myself. The 43 HP gain is pretty substantial. I have been looking into pretty much the same mods you seem to have. But I wanted to clear up some questions I had about your ride.

Do I understand you correctly that the only mods you have done with the car are the CAI and the Power AXEL flash? You didn't update the exhaust prior to this, change the injectors, headers or any other components?

Not disputing your claims, just want to be sure the only mods you have made were the CAI and the Flash.

Tks

Good Morning ksaun,

You understand correctly. I went to TTP Performance in Little Falls NJ (currently flooded out due to Passaic river overflow - sucks...) and asked them what I could do to improve HP without going to "intrusive" or "expensive" to start. They never worked on a Genesis before so they did research. They suggested the AEM cold air intake and sent the PCU to Arvin at PowerAxel in California to be flashed for my modification.

They told me up front to expect about 20 - 30 HP increase. We were all "blown away" with the actual results.

If you do exactly as I did, I feel very comfortable that you should see between 35 and 45 HP increase, I've learned it's not an exact science. You should be able to get exactly what I got done for between $1,000 and $1,500 by a REPUTABLE shop. Please be sure to have them Dyno your car before and after and be there for both tests. It's cool !!!

FYI, The "prompt' for having some upgrade done to my car was by being beaten by an Infiniti G37 on the highway.

I had the pleasure of returning the favor the other day. It was great !! Guy would not believe it so we had at it twice. Both times I "soundly" beat him. Didn't blow him away (The Infiniti is a formidable competitor), but soundly beat him. My car appears stock so I should have only 306 HP compared to his 330 HP (he weighs 300 LBS more as a side note). But I really have 349 HP (compared to his 330 HP) , and I'm sure my torque is much higher and I'm lighter then him. Therefore, I win...top end too...either he got scared or what but at approx.135 MPH he was slowing. First time he slowed at 110mph.. $28k all in (including my mods) compared to his $42k all in... Gotta love Hyundai !!

Regards,

Doug C