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Discussion Starter #1
can someone give me an estimate on how much horsepower i am going to gain from these mods i just put on.

Toda flywheel and clutch, lotus sport ecu, cf daytona cold air intake, a/c removed, PPE header, sports cat, arqray single tip titanium.
 

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Let's see:

Toda flywheel and clutch - unknown

lotus sport ecu - zero

cf daytona cold air intake - zero

a/c removed - zero

PPE header - zero

sports cat - zero

arqray single tip titanium - zero

Probably zero, and perhaps negative. There are many threads on this board about the lack of exhaust and intake solutions for more power. I think you can get 8 horsepower with an aftermarket tune. Do a search.

The best news is that you shed some weight off the car. Every 10 lbs you take will approximate a 1 horsepower increase, not to mention benefits in braking and cornering.
 

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how is taking off the a/c not gaining any horsepower to the wheels?
The A/C only consumes power when it is on. Taking the A/C out of the car completely will reduce weight, but the engine output will be the same as if you just turned it off.
 

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There probably is some parasitic drag from the a/c pulleys even with the clutch disengaged.
We're talking less than 1 hp, I'm sure. Losing the weight is probably a better return.
 

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Let's see:

Toda flywheel and clutch - unknown

.
Make that zero as well. Changing the clutch and flywheel will not cause the engine to produce any more hp. A lighter flywheel may allow the engine to rev faster and there might be a very small reduction in drivetrain loss, but it wouldn't amount to much. The clutch may be less likely to slip and offer more positive engagement, but it doesn't affect hp.

A better question would be, "How much faster is the car now because of these mods?"
 

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tree fiddy is still funny

how bout

<a href="http://s64.photobucket.com/albums/h182/gt3guru/?action=view&current=3.jpg" target="_blank"><img src="http://i64.photobucket.com/albums/h182/gt3guru/3.jpg" border="0" alt="Photobucket"></a>

<img src="http://img2.putfile.com/thumb/1/2215521561.jpg">
 

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definitive answer: +0.0359918632 HP at the rear wheels.
 

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I'd say the sports cat and ppe headers are the only thing there that gave you any hp and i have no idea how much thats what dynos are for
 

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Let's see:

Toda flywheel and clutch - unknown

lotus sport ecu - zero

cf daytona cold air intake - zero

a/c removed - zero

PPE header - zero

sports cat - zero

arqray single tip titanium - zero

Probably zero, and perhaps negative. There are many threads on this board about the lack of exhaust and intake solutions for more power. I think you can get 8 horsepower with an aftermarket tune. Do a search.

The best news is that you shed some weight off the car. Every 10 lbs you take will approximate a 1 horsepower increase, not to mention benefits in braking and cornering.
You've got to be kidding me...

The AC and flywheel mod is more of a "freeing horsepower" situation, but the I/H/E mods WILL raise horsepower. As for intakes with the Lotus ECU, it's a tossup with no other mods, but it has been dyno proven to compliment header and/or exhaust mods. The lower RPM ranges may lose power with an intake, but LIFT likes more VE no matter what you do...

In any case, ricer math tells me you'll make up to 180 whp tops should you have an intake, PPE race header, and a custom 2.5" exhaust with no cat on the stock ECU.
 

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OK, we need to start an Ltalk pool, all put $10 in with our guesses, then have the car dynoed.

but first, of course, MN has to return the car to stock and redyno it. He has to get a cut.

I'm betting 7.2 whp
 

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Discussion Starter #17
thanks for all the answers. you've given me a lot better idea of what i be getting now. like i said before, i know the a/c and flywheel wouldn't increase horsepower, i just said everything that is getting done to my motor.
 

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BUMP

How do the mods feel on your car? Plan on going to a dyno soon? You should be in the 170+ whp range.
 

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You've got to be kidding me...

blah blah blah

In any case, ricer math tells me you'll make up to 180 whp tops should you have an intake, PPE race header, and a custom 2.5" exhaust with no cat on the stock ECU.
Can't a guy come to an anonymous web forum and talk sh!t without getting the second degree?

Oh wait, you just did...:D
 

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The gains are possible with the top end oriented PPE race header:

http://www.newcelica.org/forums/showthread.php?t=263179

Well, last time we went to the dyno to check the gains with the PPE header we left pretty with the results. 8whp is pretty nice.... if it were the true gains of the header. The next day we continued to hear a slight leak that we had heard the night prior on the dyno, but ignored. Hold and behold, we went to check it out and this is what we found out....



The flex pipe shrunk for some reason to 1" in diameter from it;s original 2.5" diameter. That being fixed (removed it :D) we went back to the see if it gained anymore and O'happy day it did. Here are the results...



12whp gain and 8 lbs torque :hitit: . Test were done in a 2005 Corolla XRS with Injen CAI, PPE header, 2.5" Crush bent exhaust and decat. Both runs on the stock ECU, no tuning whatsoever.

So who wants another GB? :fawk:
But it's not like me surging interest the Lotus version of the race header to get made would do any good for you guys...
 
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