| x808drifter |
11-09-2017 09:03 PM |
Quote:
Originally Posted by mav1178
(Post 3002959)
I brought up the RB26DETT because it's a factory car. Boosted or not, the engine revs to 7500 so it's ESPECIALLY relevant in the RPM range you listed.
Tell me, what was Nissan's reasoning for including this on the RB26DETT but not have it on the RB25DET?
I wasn't trying to compare gains from an ITB setup on a 2.0L FA20 to the factory ITB setup on a 2.6L RB26DETT. I was merely pointing out that it doesn't take 8500RPMs for there to be some type of benefit from ITBs.
Whether the gains are worth the price paid is up to the end user, which is not 99% of people wanting to mod the FA20.
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I believe the point he's trying to make is that you are comparing two VERY different engines.
There are so many differences between the two it isn't really logical to even compare.
Straight 6 vs boxer.
There is sooo much more that determines weather or not ITB's/IRTB's will be worthwhile and where they will add power/response.
Just because its useful on one engine doesn't mean it's useful on another.
RPM has very little to do with it.
His original point was that most have figured out that there is very little to gain power wise below 8,500 the airflow restriction just isn't a factor below that RPM in our engines with the stock manifold.
His second point was since the engine doesn't like RPM above that 8,500 mark anyway its kind of a moot point.
I can see slightly better throttle response but not much beyond that.
Some minuscule gains here and there.
I think to get real gains the car would either need to be high revving (above 8,500) or have a bunch of boost being thrown down its throat to be worth the investment.
^ At least in my eyes.
Only way to really know is for someone to do it. |
