big joe how do we order!!!!!

 

It's bigjosh and all you do is email the man. Same as the last ...*thinks* 3 group buys.

 

I still want to see some results on this, and...

I have some concerns with loosening up the exhaust more. Okay, I got my catback before I did anything on the Intake side, and I lost a noticeable amount of low-end power. Now, with the header, what would be needed to keep the balance on the intake end?

 

a turbo hahha but then you can't use the header

get some underdrive pulleys, disconnect all non-essential loads.......

 

Underdrive and non-essential loads will just let the power get to the ground. That won't make for more intake or make up for lack of backpressure.

 

I may also wait for CARB legal or Turbo wich ever comes first I'm tied up in a bigger project with my nissan (quest for 300+WHP )
You can also do universal stuff like spark plugs/wires and maybe a ground wire kit for stability of HP it worked out good on my lancer as acceleration is much greater also consider a CAI or RAM air from either injen or weapon-r

 

Maybe you're not reading this right...

Too little backpressure, you lose torque. To balance out that lack of backpressure, you need more air coming INTO the engine... now, if I have a Injen CAI, and that is just enough to over come the lack of backpressure with a 2.25" exhaust with a stock header, two cats, and stock downpiping, the removal of the first cat, a higher flow header, and maybe some upgraded down piping, what will make up for that lack of backpressure, and subsequent torque loss?

Now, forced induction isn't an option seeing as a) it's expensive, and b) that would negate the need for this header seeing as your replace the exhaust manifold.

My question is how MUCH of a torque loss there is, and the subsequent loss of off the line power.

Clear?

 

i understnad your question. just trying to suggest how you can gain some power. not necessarily on the intake stroke...but overall, which might help counteract your feeling of lost torque. unless you go turbo, there's only so much you can do to force air into the engine. maybe dual (quad?) throttle bodies. $$$$$

 

Exactly my point, Cup. I know you were trying to talk about power in general, but, at the same time, if you want power off the line, you try to avoid losing it ANYWHERE. That being the case, I would like to know what the loss rate is. If it's minor compared to a good HP gain (like the CAI systems results are), then it might be a reasonable trade off.

 

port and polish your head

internal stuff to piston/cylander

fuel injectors

throttle body

this kinda stuff will help. but you are talking $$$/time/work. besides forced induction...you can only gain so much by putting a filter on. there's no bolt on part that just adds torque. start with the head if you really wanna tune.

 

ah i see what you mean. well unless you want to do more than just bolt ons, i'm afraid that there's nothing besides a good filter.

 

I completely understand what you're saying, and I'm not arguing. My question (and as should be the question with most people concerned with off the line power) is how much of a torque loss is there with the headers.

I mean, according to AEM's (read: probably bogus) dyno sheets, you lose something like 4 ft/lbs of peak torque, but, in excahnge for an extra 14 or so hp at the wheels, which is a pretty good trade off.

It's not so much a matter of wanting to gain a large amount of torque by tuning, but more about what are you trading off by doing an inexpensive, easy mod?

 

i guess we are still waiting on some sort of dyno sheet? if their claims are true, i'd be very willing to trade any amount of torque for a 27.5 whp gain.

 

I don't know about ANY amount... 2 or three probably wouldn't be terribly missed.

 

kamikaze's claim is dubbious but if they can produce sheet i would prolly get one 300 bucks for ceramic coated aint bad