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How much power gain from these mods?

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Old Jul 19, 2001 | 09:49 PM
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Question How much power gain from these mods?

Hey guys,
I am not sure if this can be done but those of you who have done dynos after different mods can you give me a rough estimate on the power gain for the following mods:

Weapon-R open intake
DP
High flow Cat
Cat back
Unorthodox pulley set
Pettit ECU
11PSI boost (what would it be at 13PSI, I believe the stock fuel system can support up to 14, is that correct?)

What kind of power gain would a FMIC provide?

Thanks for your answers.
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Old Jul 19, 2001 | 10:11 PM
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Re: How much power gain from these mods?

And this, everyone, is another episode of bench racing. You're probably looking at the 310ish range. A FMIC will probably gain you another 15ish, but this is certainly bench racing and power really is nothing.

I have a question ... Do you seriously have a Weapon R "mod" on your RX-7?
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Old Jul 19, 2001 | 10:20 PM
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id say a little high, depending on if dk ment rwhp or bhp.


bhp * 0.85 = rwhp
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Old Jul 19, 2001 | 10:41 PM
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Originally posted by jar
id say a little high, depending on if dk ment rwhp or bhp.


bhp * 0.85 = rwhp
DK meant flywheel hp.
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Old Jul 20, 2001 | 02:34 PM
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I am trying out the Weapon-R intake right now. Do you feel there is a problem with that?
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Old Jul 20, 2001 | 02:35 PM
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Originally posted by Trexthe3rd
I am trying out the Weapon-R intake right now. Do you feel there is a problem with that?
It's a garbage product from a ricer company. Find an A'PEXi, BLITZ, or RE Amemiya intake.
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Old Jul 20, 2001 | 02:45 PM
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Just thought I'd ask, but as far as I can tell the only real physical difference between the different intakes are the filters it uses, is it not? They are all basically a tube (different bends) with a filter at the end, right?
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Old Jul 20, 2001 | 02:47 PM
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basically, I would tend to agree... weapon R is definately rice though..... I wouldn't mention that you have that intake to too many people, just say "intake" or "homemade intake".... lol....
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Old Jul 20, 2001 | 05:12 PM
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hey, does anyone know if those weapon r intakes are plastic that is chromed or is it made of metal?
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Old Jul 20, 2001 | 08:04 PM
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They are metal, aluminum I believe.
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Old Nov 7, 2001 | 06:33 PM
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beleive it or not weapon r makes a heck of a intake. I have the weapon r intake, coldairbox, and ecu on my 2001 mr2 spyder. It dynoed for 18 rwhp. It isnt all rice. They just arnt well known.
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Old Nov 7, 2001 | 08:53 PM
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Thumbs down

Don't put a weapon r intake. Those intakes are junk and ARE defenetly riced out. Put on a better one like apexi or the m2 setup with the k&n. I wouldnt suggest weapon R.
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Old Nov 7, 2001 | 11:26 PM
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Originally posted by Trexthe3rd
They are metal, aluminum I believe.
yeha, they are aluminum. I have one on my CRX...

Hey it was free...and I ditched the POS foam filter and put on a K&N cone. And I painted it to match the exterior. So It really doesn't look anything like a weapon R anymore.

I hate weapon R and all the products they make. To think I actually saw a car with "Weapon R" plastered on the side of it, as if he was proud to use WR products. And I'm pretty sure he wasn't sponsored, because it was a ghetto *** car.
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Old Nov 8, 2001 | 12:31 AM
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Weapon R is definitely a Honda rice product. If it's free, put in on but there are some other nice open air intakes that are much nicer and more designed for the FD.

Getting back to the question

ic-10-20 rwhp
dp 13-20 rwhp
hi-flo cat 6-15 rwhp
cb 10-13 rwhp
pulley set 15 rwhp
ecu 20 rwhp
every 1 psi you add around 10-15 rwhp

most FDs have around 215-220 rwhp - you do the math
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Old Nov 8, 2001 | 09:38 AM
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Is that original post correct that you can run 14 psi on the stock computer. I always heard that 12 psi was pretty much the max that should be obtained with the stock computer. Anybody have any input on that?
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Old Nov 8, 2001 | 11:56 AM
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Originally posted by mr_jonboy
Is that original post correct that you can run 14 psi on the stock computer. I always heard that 12 psi was pretty much the max that should be obtained with the stock computer. Anybody have any input on that?

WOAH WOAH WOAH!
you cannot run 14psi on the stock computer...he mentioned stock fuel system. i wouldn't run anything but stock boost on a stock computer.
on a fuel note...i'm running 12lbs and my stock injectors touch 90% duty every now and then. that is bad. it'll wear em out and if the engine needs much more fuel its just not gonna get it.
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Old Nov 8, 2001 | 02:14 PM
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My bad, i misread it. But I have heard that running 12 psi on the stock computer is not a problem but going any higher for extended amounts of time could be dangerous. Anybody else have any input on that sitution.
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Old Nov 8, 2001 | 02:54 PM
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Originally posted by kwikrx7
Weapon R is definitely a Honda rice product. If it's free, put in on but there are some other nice open air intakes that are much nicer and more designed for the FD.
I wouldn't even put the Weapon R intake in if it was free. Problem with most of the open intake available for the FDs are that they are open in the very hot engine compartment. Unless there's ducting that prevents the hot air in the engine compartment to get sucked in, it's probably better to have the stock airbox with ducting that pulls air from the front of the car!
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Old Nov 8, 2001 | 04:24 PM
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kwikrx7: I saw you said that a pulley kit is worth 15 horses. I have one and I didn't even install it because a lot of people on here were saying that they aren't worth any hp. maybe 1 or 2 tops they were saying. No matter what I was still eventually going to install it just because my air pump really is doing absolutely nothing and it is taking up space and maybe some horses. so whats the real deal here.
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Old Nov 8, 2001 | 09:48 PM
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Originally posted by widebody2
kwikrx7: I saw you said that a pulley kit is worth 15 horses. I have one and I didn't even install it because a lot of people on here were saying that they aren't worth any hp. maybe 1 or 2 tops they were saying. No matter what I was still eventually going to install it just because my air pump really is doing absolutely nothing and it is taking up space and maybe some horses. so whats the real deal here.
yeah in my experience in *every* other car the pulleys add like 2-3hp if that and its pretty much a joke mod but for FDs everyone says 15-20hp, and there are alot of dyno numbers to back that up, anyone know why this is?

-Aaron
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Old Nov 9, 2001 | 05:34 AM
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pulleys

I have only reduced the main pulley. I wouldn't think that it was anything more than 1-3 HP...maybe redoing the whole pulley system and pulling the air pump would result in 5-10 range, but 15 HP seems like a ton for this mod.
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