Building some HPs - Intakes: Injen evolution vs Skunk2

[PulsarBeeerz]

Originally Posted by 86TOYO2k17

Obviously temps, humidity conditions etc.. could account for 1-2whp difference between runs. Although with pre 5.5k rpm being so similar that might not be as big of factor.

Looks to be about a 3whp/2wtq avg gain from 5.5k-7.5k. Seems about spot on.

Conditions are normalized with the SAE correction which makes sense they be so close in the lower rpms. 6.5-7.5k rpm Looks like a solid 5whp gain over the cookie cuter intake setup everyone prescribes and could in theory translate into a 8-10whp gain over stock. The stock snorkel was kept intact as well.

[86TOYO2k17]

Originally Posted by PulsarBeeerz

Conditions are normalized with the SAE correction which makes sense they be so close in the lower rpms. 6.5-7.5k rpm Looks like a solid 5whp gain over the cookie cuter intake setup everyone prescribes and could in theory translate into a 8-10whp gain over stock. The stock snorkel was kept intact as well.

Yeah for 1k rpm it has a good 5whp, peak powerband differs slightly per gear but it’s roughly 2k rpm range you’ll be in in each gear after 1st gear when shifting near redline when accelerating at max potential. which is why I looked at avg gain from 5.5-7.5k. Which still shows a decent gain over cookie cutter setup. Good mod when you want to push the limits of NA.

[churchx]

Originally Posted by 86TOYO2k17

Another thing most people don’t consider. Is even if factory filter isn’t a restriction, or maybe it’s a slight restriction but a drop in isn’t and still has a tiny bit of head room and that’s why other cai don’t make more power. If drop in has say 5% more flow than the engine can use going beyond that would make no difference.

BUT after say 5k miles it gets dirtier and starts clogging up and flows 10% less than it did brand new. It is now a restriction where as a cai with say 15% more flow headroom after it’s dirty and flow drops 10% is still flowing more than the engine needs. So it might not show more power both tested brand new, but one might continue to make the same power while the other slowly drops off over time until replaced again.

Then again for price of intake user can afford to change drop-in filter twice more often for several years prior total spendings come even.
And shouldn't more time/work needed to get tune MAF scaling right also be valued in case of intake?
Imho only reason making sense for worth getting intake might be wish to get specific sound change. But as sound is subjective thing, that reason is not valid for many.

[86TOYO2k17]

Originally Posted by churchx

Then again for price of intake user can afford to change drop-in filter twice more often for several years prior total spendings come even.
And shouldn't more time/work needed to get tune MAF scaling right also be valued in case of intake?
Imho only reason making sense for worth getting intake might be wish to get specific sound change. But as sound is subjective thing, that reason is not valid for many.

Yup you could factor in all of that when deciding. People value money differently, performance differently, time differently etc... some want bang for buck some want the best of the best. All on the individual to decide what they want and what is worth it to them. I just try to provide as much information as possible about the OPs specific question so he can determine and decide for himself what is worth it or not. I think its been proven that some CAI do add HP especially top end just not that much. But it all adds up.

[churchx]

With best of best there comes another issue that seems characteristic of twins regarding NA bolton intake/exhaust mods - diminishing returns when nearing 30-40hp/tq gains most seem to hit.
That is intake already doesn't net much when it's only upgrade. It will net even less if it's in addition to eg. catless header+E85. By then it's not about $300 for 5-10hp gain, but $300 for 1-2hp gain, as biggest lump gained already from headers/tune/E85 with only smaller and smaller gain left to scrape on top of it.

[86TOYO2k17]

Originally Posted by churchx

With best of best there comes another issue that seems characteristic of twins regarding NA bolton intake/exhaust mods - diminishing returns when nearing 30-40hp/tq gains most seem to hit.
That is intake already doesn't net much when it's only upgrade. It will net even less if it's in addition to eg. catless header+E85. By then it's not about $300 for 5-10hp gain, but $300 for 1-2hp gain, as biggest lump gained already from headers/tune/E85 with only smaller and smaller gain left to scrape on top of it.

Yup, 1-3whp for 45-450$ depending on choice, hence my 2nd post in this thread. glad we are on the same page.

To many people 400$ for that last 2whp is worth it when NA. To many others its not. All depends on the individual.

Also if header/tune and even E85 many still use OTS tune. Custom tune by itself will net more gains over a OTS tune, so needing a custom tune with your 400$ intake that only will net 2whp, that custom tune might add another 3whp on top, so your custom tune + intake might net 5whp when done together compared to no intake and just a OTS tune, making the custom tune justifiable at this point when to many it otherwise would not have been.

Again to each their own. provide the information and let the individual decide what is worth it. 100$ to someone might be a lot of money, to others it might be toilet paper. Never know the individuals situation, income level, etc...

[PulsarBeeerz]

Eh people dump $1700 into a header when they could have spent half or less to get similar gains while running E85. Add to it thats before the custom tune and hardware another $1700 for said header all for maybe extra 3-5whp? On a good day. Diminishing returns are far worse on exhaust parts as price increases, but its gets a pass and recommendation. I suppose that's off topic and for another threard.lol

[RayRay88]

Originally Posted by PulsarBeeerz

Eh people dump $1700 into a header when they could have spent half or less to get similar gains while running E85. Add to it thats before the custom tune and hardware another $1700 for said header all for maybe extra 3-5whp? On a good day. Diminishing returns are far worse on exhaust parts as price increases, but its gets a pass and recommendation. I suppose that's off topic and for another threard.lol

Has E85 and a tune proven to give you more mid range torque (fill in the torque dip)?

[Yitzb]

Originally Posted by 86MLR

Decat OEM header and frontpipe, snorkel mod, oem style "good" dry aftermarket airfilter.

Only cost is the filter and some gaskets.

With the money saved get a ECUTEK (with racerom) tuned by a pro on a dyno and have fun.

On 98RON you should see near to 190-200hpatw peak power and good gains everywhere else.

Or, spend alot of cash on aftermarket parts for some stickers and typical gains.

Will this give same power gains as an aftermarket header

[86MLR]

Originally Posted by Yitzb

Will this give same power gains as an aftermarket header

Typical gains to most

[86TOYO2k17]

Originally Posted by Yitzb

Will this give same power gains as an aftermarket header

a full decat on a 17+ header/fp, with a drop in filter and a custom dyno tune will give you the same gains maybe even slightly more as a aftermarket catless header/FP, CAI with a OTS tune.

But a good aftermarket catless header/FP (most are not that good, some are), CAI and a custom dyno tune will net you the most. Probably another 5% on top of the 1st setup.

E85 if you have access will net another 5%+ on the top of all that.

Bang for buck the 1st setup is the best by far, but it does still leave a decent amount on the table. and for pre 17s drop about 3% so the difference will be more, and even more worth it.

[alphasaur]

Originally Posted by RayRay88

Has E85 and a tune proven to give you more mid range torque (fill in the torque dip)?

A tune and header eliminate the torque dip

[DarkPira7e]

If you're looking to upgrade the car, why not upgrade bushings on things? Rear diff and subframe bushings, control arm bushings and get and transmission mount insert?
Or go baller mode and get a carbon fiber driveshaft

[DarkSunrise]

https://www.pointmeby.com/2017/10/18...esults-15-86s/