How much HP gain from catted DP?

[misiekwaw]

Hi!

Now in my car I have custom CBE with TP all 2'75, SRI with TIP, Precission FMIC and mazdaEdit tune. I'm currently thinking about catted DP. How much HP gain I can count from catted DP with stock K04? Now I have about 320 crank.

[Tokay444]

I read just last night that 320 crank hp is about the max the stock turbo can blow.
Don't quote me on that. It's just something I scanned over. Seems a little low, but then again, we hais tiny tarbo

[alien_sporez]

Based on the CP-E website, a catted DP will add 30hp and 40tq. MazdaSPEED3 3" SS Downpipe System | Custom Performance Engineering

That being said, I suggest you upgrade your fuel pump internals before you do anything else. With your mods, you're probably getting close to the max flow capacity of the stock fuel pump. Adding a less restrictive DP with your stock fuel pump will probably result in a lean condition, which will definitely result in fail.

[Docnox]

It's probably the biggest power increase you can get out of the stock turbo.

[misiekwaw]

OK, but how much more from my 320 crank? I dont believe in 30hp from DP in my case.

[08.5MS3]

Dyno before
Dyno after

Every car is different and responds differently to mods.


Tapawhat?

[2011speed]

to the crank? you sound like u just wanna brag about numbers. its what u put down to the wheels what matters. so after all that/tuned ud be 280-310 whp(including downpipe)

[alien_sporez]

Originally Posted by 2011speed to the crank? you sound like u just wanna brag about numbers. its what u put down to the wheels what matters. so after all that/tuned ud be 280-310 whp(including downpipe)

^^^that^^^

Originally Posted by 08.5MS3 Dyno before Dyno after Every car is different and responds differently to mods. Tapawhat?

^^^and that^^^

So, exactly how do you know the HP at the crank? You pulled the engine and ran it on a static dyno? Because unless you did that, your HP number is bullshit to begin with. If you're just going by the factory declaration of HP as your baseline, and then "adding" the estimates of the parts manufacturers, you're magnifying the bullshit factor exponentially. Basically, you want to measure how big your cock is in centimetres instead of inches so you can say "My cock is really long, it's 42!!!"

The factory HP number is just an estimate, not a guarantee. You could have a poorly built engine that makes less, or you could have a "factory freak" that makes more. Add to that environmental variables, differences in tire/wheel combinations, modifications, etc. and your attempt at saying "My car makes 340 HP" is absolute fiction. Because just adding the "added HP" estimates from the manufacturer can't be done, because it's not cumulative. You argument is flawed to begin with: "Part 1 adds 30 HP, and Part 2 adds 20 HP, so if I install both part 1 & 2 I will add 50 HP." It doesn't work like that in real life. That is how ricers get their ridiculous ideas their cars are powerful, but they get their asses kicked by stock KIA's. Not all parts interact, and increasing the flow of air/fuel/etc by adding one part might reveal a limiting factor in another part.

Two pieces of advice, brownie:

1) DONATE before @rodrigo shows up and turns you into a crying sack of shit
2) Pay $100 and get a baseline dyno. Install part. Dyno again. Subtract HP from #1 from #2, and you will know how much that part added in HP.

[frodaddyweez]

Exhibit A:

I was fully bolted, minus mani, and my baseline dyno for my Cobb tune was 244whp and 275wtq. On a mustang awd tho. But still. Mods are only half the story btw...you need a good tune too

[silvapain]

If you really want to know how much performance is gained by mods, go do a bunch of 1/4 mile runs before and after.

[helmetface]

Originally Posted by alien_sporez 1) DONATE before @rodrigo shows up and turns you into a crying sack of shit 2) Pay $100 and get a baseline dyno. Install part. Dyno again. Subtract HP from #1 from #2, and you will know how much that part added in HP.

Where are you going to get Dyno runs for $100? IS that $100 and the Best Blow Job of your/their lives?

Every local place I called gave me quotes for 5 times as much and then when I started talking about protunes they went into how the Speed3's are so terribly difficult to tune etc..

One of these shops were COBB recommended...bitches!

[darkcambria]

Originally Posted by helmetface00 Where are you going to get Dyno runs for $100? IS that $100 and the Best Blow Job of your/their lives? Every local place I called gave me quotes for 5 times as much and then when I started talking about protunes they went into how the Speed3's are so terribly difficult to tune etc.. One of these shops were COBB recommended...bitches!

The local shop we go to does 3 runs for $50. He'll even usually let you run a few more times if you want to tweak your tune in between runs.

[helmetface]

Originally Posted by darkcambria The local shop we go to does 3 runs for $50. He'll even usually let you run a few more times if you want to tweak your tune in between runs.

Just curious, where you located? I could essentially drive to the West Coast (from Boston) and back, plus tunes for the prices I'm getting out here...

I need da hook ups

[alien_sporez]

Originally Posted by helmetface00 Where are you going to get Dyno runs for $100? IS that $100 and the Best Blow Job of your/their lives? Every local place I called gave me quotes for 5 times as much and then when I started talking about protunes they went into how the Speed3's are so terribly difficult to tune etc.. One of these shops were COBB recommended...bitches!

EngineLogics.com

Local shop where I got my dynos done on my old car. Got 5 runs including a tune on a Dynamics loaded dyno for $125. Straight dyno of 3 runs (no tune) was $65.

[IshiKage]

cats are for pussies...just sayin

[helmetface]

Originally Posted by alien_sporez EngineLogics.com Local shop where I got my dynos done on my old car. Got 5 runs including a tune on a Dynamics loaded dyno for $125. Straight dyno of 3 runs (no tune) was $65.

Jesus,thos prices are great.. I could probably make it to Texas in 2 days..let me see what my better half wants to do for this years vacation..muaha

Originally Posted by 240mazspd3 cats are for pussies...just sayin

*spreads legs*
*looks down*

Yup, I've got a cat.

[darkcambria]

Originally Posted by helmetface00 Just curious, where you located? I could essentially drive to the West Coast (from Boston) and back, plus tunes for the prices I'm getting out here... I need da hook ups

I'm in Lancaster PA, the shop is out near Pittsburgh. Here's their link Home

[shawn.]

Originally Posted by darkcambria I'm in Lancaster PA, the shop is out near Pittsburgh. Here's their link Home

nice! i'm in pittsburgh, definitely gonna head down to this place.

[Hossanngeorge]

Originally Posted by darkcambria The local shop we go to does 3 runs for $50. He'll even usually let you run a few more times if you want to tweak your tune in between runs.

Where is this place?? And what is the name of it, im not too far from you! that link isnt working for me

[mxlplx71]

Originally Posted by Hossanngeorge Where is this place?? And what is the name of it, im not too far from you! that link isnt working for me

that thread is 4 years old

[Thepedigree13]

Wow!!

[MS3Shadow]

Wow, dude. Way to resurrect a old thread

Sent from my HTC M9

[patABQ]

A lot of inflation in 4 years. I would love dyno's for under $100.

[Hossanngeorge]

Wow I guess so I didn't even look at the date, lol a friend sent me the link. I was thinking that number was absurd. Thanks.

[HaXiR]

I feel his pain, there are good old threads id like to necro! lol

[MSMS3]

Just in case someone new comes here looking for the answer to the question raised by this resurrected thread title:

1. Do not run an aftermarket downpipe on these cars without both a high pressure fuel pump upgrade and a tune. You will go boom.

2. The K04 stock turbo limits max power on pump gas to about 300 whp, maybe 310. No matter what combo of bolt on mods you use to get there, that is the ceiling.

A downpipe with pump internals upgrade and tune will go a long way toward getting you there. But don't think that if you are already at, say 280-290 with your tune and other mods that throwing a catless dp on will get you 330 or some shit like that with the stock turbo and pump gas. You cannot add potential gains from individual mods. It is not the sum of the individual parts.

[g00s3y]

Originally Posted by patABQ A lot of inflation in 4 years. I would love dyno's for under $100.

Place by me does 3 runs for $50, dynojet, reputable shop too.