Took injen intake off and now boosting more
Took injen intake off and now boosting more
I took my injen intake off and put the stock back on w/ the injen intake i was only boosting 19.5 or so then tapering down to say 16. Now with my stock box its going to 21 and holding 19... I have a flash for the intake the car seems faster with the stock airbox now. anyone else had this happen to them.. I was thinking maybe if i put a mbc in and turned the boost up w/ the intake it may benefit more im not so sure why the boost falls off with the intake though
Last edited by BoostWhore; May 23, 2005 at 07:18 PM.
That's something I've been concerned with.. When you get a flash, with whatever parts you have, and then change something. Like add a part, or take one off, the car will act funny.. My friend had a flash done, then installed an upper I/C pipe, and the car fell flat on it's face... Put the stock one back on, woke back up.. Wierd.. I dunno if it really has to do with the flash or not, but he's not the only one I know that had the car die after adding a "performance" part that's supposed to add power... Good luck dude...
same thing happend to me with the injen. I dont have a reflash back yet, but i went from holding 20psi to redline to it tapering down to about 16 now. Do people have this problem with other intakes?
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The Injen intake doesn't make power below 6500rpms. Even their own dynographs show that you lose power and torque with the injen intake on. The stock air box is the best IMO. But I use the injen bcuz I'm a fashion ***** and it looks soooo good through the vents. What can I say...I'm shallow like that. For the best performance, I don't think you can beat the stock air box.
Strange, I used my Injen kit as stage two and went from 298awhp(before Injen) and 320awhp after injen. This was done with a cat converter. My Injen kit made a big difference. My Injen kit made just as much power as Buschurs stage two. The power is there, you just gotta know how to tune it.
Last edited by GREDDY; May 23, 2005 at 10:39 PM.
What i think is that if you put the right mods with it and the right tune you will get the power you've been looking for. Also this has been covered many times also, just do a lil bit of search and you'll find the answer.
Originally Posted by GREDDY
Strange, I used my Injen kit as stage two and went from 298awhp(before Injen) and 320awhp after injen. This was done with a cat converter. My Injen kit made a big difference. My Injen kit made just as much power as Buschurs stage two. The power is there, you just gotta know how to tune it.
Originally Posted by BoostWhore
Is it proven that this intake gives more hp than with the stock box and a drop in ? Anyone have a dyno?
GREDDY wrote: "I used my Injen kit as stage two and went from 298awhp(before Injen) and 320awhp after injen."
There is a big BUT with that
A lot depends on where it was tested up here in Denver. If the Dyno you were at used SAE corrections which are for normally-aspirated cars (which around here run anywhere from 1.22 up to 1.28)... that is not the equivalent sea level HP or Torque for a turbo'd or super charged car because of technical issues that I won't go in to (not that I know them all or could explain them completely)
Suffice it to say if you WERE using corrections (let's say WHP of 300, an SAE factor of 1.25) you would have to work backwards to an uncorrected number of 240 WHP which also would NOT be the correct number. your true WHP would be some where between 240 and 300. You would have to know your exact turbo efficeincy, relative barometric and other atmospheric factors to calculate WHP numbers (or BHP or Torque) that were Sea Level equivalents.
Practically speaking, it can't be done at any level that is readily available to the average (or probably even pro users) and even if some think-tank-tuning-operation managed to measure it for one car, it would only apply to that car, because of all of the variables involved when you went to another car to test it.
So comparing numbers with anyone at sea level (even if both are uncorrected numbers) is fruitless if accurate comparision is the goal.
THIS IS NOT TO SAY HOWEVER that comparing start and finish numbers like GREDDY was doing are not worthwhile. if you show a sizable gain from one run to the next, with the same relative conditions, you of course have gained something, and it is accurate to say "Today in Denver I gained xx(x?) hp from changing my blah-blah to a blah-blah-blah"
I've said too much, sorry :-)
There is a big BUT with that
A lot depends on where it was tested up here in Denver. If the Dyno you were at used SAE corrections which are for normally-aspirated cars (which around here run anywhere from 1.22 up to 1.28)... that is not the equivalent sea level HP or Torque for a turbo'd or super charged car because of technical issues that I won't go in to (not that I know them all or could explain them completely)
Suffice it to say if you WERE using corrections (let's say WHP of 300, an SAE factor of 1.25) you would have to work backwards to an uncorrected number of 240 WHP which also would NOT be the correct number. your true WHP would be some where between 240 and 300. You would have to know your exact turbo efficeincy, relative barometric and other atmospheric factors to calculate WHP numbers (or BHP or Torque) that were Sea Level equivalents.
Practically speaking, it can't be done at any level that is readily available to the average (or probably even pro users) and even if some think-tank-tuning-operation managed to measure it for one car, it would only apply to that car, because of all of the variables involved when you went to another car to test it.
So comparing numbers with anyone at sea level (even if both are uncorrected numbers) is fruitless if accurate comparision is the goal.
THIS IS NOT TO SAY HOWEVER that comparing start and finish numbers like GREDDY was doing are not worthwhile. if you show a sizable gain from one run to the next, with the same relative conditions, you of course have gained something, and it is accurate to say "Today in Denver I gained xx(x?) hp from changing my blah-blah to a blah-blah-blah"
I've said too much, sorry :-)