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Old 12-28-2003, 05:14 AM   #1
jerymon
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Default Dynoed your stock 4eat???

has anyone dynoed the stock 4EAT and if so what was the HP?

I'm having mine done 1/16. i asked the owner of the shop to guess what they would estimated it @ and they said 135. this is a guess of course. we'll see what she puts out before & after the mods I'm having done.

I'll post the before and after dyno charts if anyone actually reads and responds to this with an interest

Jerry
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Old 12-28-2003, 06:02 PM   #2
02R6
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Default

I don't have a 4EAT and haven't seen many dyno plots for them (so maybe I shouldn't reply). However, I think most WRX's, in stock form, make somewhere in the neighborhood of 150-160awhp.

Hope that helps.
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Old 12-28-2003, 06:07 PM   #3
ScoobyBoy
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Default

bump
cant wait to see the chart.
gluck!
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Old 12-28-2003, 06:22 PM   #4
Full_Clip
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Default

Turbo Magazine ran a stock 2002 on a dyno, 169.7 HP. Maybe a 10% drop for the slushbox.


Full_Clip is rather compelled.
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Old 12-28-2003, 08:53 PM   #5
ronf
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Talking 4EAT

Read it somewhere. The 4-EAT is actually faster than a 5-MT from 50-60mph on. 45/55 torque split and gear ratio may be the reason.
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Old 12-28-2003, 09:26 PM   #6
Nick M
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Default Re: 4EAT

Quote:
Originally posted by ronf
Read it somewhere. The 4-EAT is actually faster than a 5-MT from 50-60mph on. 45/55 torque split and gear ratio may be the reason.
the gear ratios are longer in the auto, so why would they help?
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Old 12-28-2003, 10:45 PM   #7
ronf
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at 60mph 4th gear in 4-EAT will accelerate faster than 5th in 5MT. I guess.
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Old 12-28-2003, 11:23 PM   #8
slack20123
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Default Re: Re: 4EAT

Quote:
Originally posted by Nick M
the gear ratios are longer in the auto, so why would they help?
4th in the auto is actually damn near the same as 5th in the manual.
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Old 12-29-2003, 04:22 AM   #9
jerymon
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thanks for replying everyone. all i've ever read about being dynoed is the MT. never seen or heard the HP on the 4EAT.

dont know about the difference in gear ratio either but i know at 80 MPH i'm right at 32k RPM. i've always wondered what the RPM on a MT is at 80. not sure if any of that is relevent to the topic but i am curious

since I got a response here and their seems to be an intterest i'll post the before and after dyno runs when i get them done on 1/16 & 1/17. i have quit a list of stuff im doing so we'll see what the results are.

She was stock till now but here's a list of what's being done on 1/16

baseline dyno run
Torque Converter
TXS uppipe
Prodrive axel back
Perrin IC hoses
ECUtek reflash and dyno tune
Grounding kit
Prodrive mud guards (biggest HP gain of them all )
Goodridge brake lines
Master cylinder bracket
Axxis metal masters front pads
Synthetic brake fluid
Synthetic trans fluid
Trans filter
Mobil 1 oil change

If things go according to plan she'll get a set of silver Rota Tarmac II's in March

I'd say she 's had a good Christmas

Jerry
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Old 12-29-2003, 07:08 AM   #10
VetteVert
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Default

Man. No wonder the 4EATs are so slow...32,000 RPM is WAY out of its efficiency range on a 2.0L

I think my 5spd is somewhere in the neighborhood of 6000ish rpm at 80. Sort of guessing as 3rd gear hits fuel cut @ 96mph on my car.

Also, ronf, you are confusing facts you have read. A top gear test from 50-60 (or whatever speed they do it from) showing the auto with a quicker time DOES NOT mean it is faster from 50mph on. There is no such thing as a top gear test in an auto, as when they run the test, the 4EAT automatically downshifts.....so you are comparing the times of a 4eat in 2nd and 5spd in 5th. The distance from the 4eat to the 5spd will only continue to increase as the speed goes up (to whatever they are limited to...the manuals aren't governed).

VV

Quote:
Originally posted by jerymon
thanks for replying everyone. all i've ever read about being dynoed is the MT. never seen or heard the HP on the 4EAT.

dont know about the difference in gear ratio either but i know at 80 MPH i'm right at 32k RPM. i've always wondered what the RPM on a MT is at 80. not sure if any of that is relevent to the topic but i am curious

since I got a response here and their seems to be an intterest i'll post the before and after dyno runs when i get them done on 1/16 & 1/17. i have quit a list of stuff im doing so we'll see what the results are.

She was stock till now but here's a list of what's being done on 1/16

baseline dyno run
Torque Converter
TXS uppipe
Prodrive axel back
Perrin IC hoses
ECUtek reflash and dyno tune
Grounding kit
Prodrive mud guards (biggest HP gain of them all )
Goodridge brake lines
Master cylinder bracket
Axxis metal masters front pads
Synthetic brake fluid
Synthetic trans fluid
Trans filter
Mobil 1 oil change

If things go according to plan she'll get a set of silver Rota Tarmac II's in March

I'd say she 's had a good Christmas

Jerry
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Old 12-29-2003, 09:05 AM   #11
PeteDucati
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Default

Quote:
Originally posted by VetteVert
[b]Man. No wonder the 4EATs are so slow...32,000 RPM is WAY out of its efficiency range on a 2.0L
He meant 4th gear, converter locked up.
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Old 12-29-2003, 11:13 AM   #12
VetteVert
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In what part did he mean that, and how do you force a STOCK car to lockup the converter?

VV

Quote:
Originally posted by PeteDucati
He meant 4th gear, converter locked up.
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Old 12-29-2003, 06:44 PM   #13
roninwarior007
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Bye Bye 02 WRX....

Default 4EAT Dyno #s

This was me from 10/3 @ Pruven Performance w/ Shiv


Done in 2nd gear (of course)
Mods:
4EAT
Protorque TC
Level10 VB
TurboXS TB Catted+ Uppipe



For comparison, same day ( devin ):


231 hp
238 tq

Mods:
5MT
perrin uppipe
samco i/c hoses
txs catted stealthback
prodrive muffler

Hope this helps abit. Reason why curve is funny looking is high stall TC was not locked up. Dont feel like cut'en wires.. waiting for pnp if it happens.

Joe

Last edited by roninwarior007; 12-29-2003 at 06:51 PM.
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Old 12-29-2003, 06:54 PM   #14
02R6
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What kind of dyno? Dynojet?
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Old 12-29-2003, 06:57 PM   #15
roninwarior007
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Yup.. Dynojet...
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Old 12-29-2003, 10:43 PM   #16
tucker63
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Default 4EAT

I got my 04 wagon tuned by Shiv at Pruven on 10/04/03 and got 201 hp and 241 tq. My auto has : Borla header,perrin uppipe,turbo xs stealthback with hi flow cat, prodrive muffler, perrin intercooler and inlet hoses. Hope that helps. I wish I got 5 speed.
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Old 12-30-2003, 02:27 PM   #17
jerymon
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what i meant is at an 80 MPH cruise on the highway the RPM's are at 3200K.

My SE-R use to (if i can remember) run about 2500K @ 80

I still like my WRX better though

Oh and the 4EAT shut's down at 130 MPH. I've only gotten it that fast once.

did any of you dyno your car stock before adding the mods?

Jerry
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Old 12-31-2003, 05:44 AM   #18
PeteDucati
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Default

Quote:
Originally posted by VetteVert
In what part did he mean that, and how do you force a STOCK car to lockup the converter?

VV
At 80mph and cruising the trans will definately be in 4th and the converter locked. My converter locks at low rpms if I'm cruising around and I'm light on the go pedal. I guess he was wondering what the difference between the final drive ratios..
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Old 01-16-2004, 04:32 AM   #19
jerymon
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Default the day has arrived

Well today's the day. I drop the car off this morning and they'll do the baseline dyno and we'll see what she's putting out in stock form. I wont have the final before and after till next week but i'll post the results of the baseline later today if possible.

Jerry
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Old 01-16-2004, 01:06 PM   #20
AZScoobie
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Default

130-140whp on a dyno dynamics dyno. A good 20-30whp less then a manual.

Clark
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Old 01-18-2004, 01:28 AM   #21
GreyBeard
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Smile

Looking forward to your info (in case you thought no one cared )

Mark
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Old 01-18-2004, 11:32 AM   #22
jerymon
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Default Thanks Mark

It's nice to know people care

well i didn't wanna post till i had the charts and proof but I hung out at the shop friday as long as i could. i work nights and had been up about 20 hrs. so i had to leave before he finished the baseline but the best i saw while i was there was a 152whp if im not mistaken. he was surprised as he had guessed about 135 to 140 range.

thought he was gonna email me the baseline chart but guess i'll wait till it's all done.

one thing that does suck is im renting a saturn while the work is done and man I miss my car.

ya never know what ya got till ya dont have it

thanks for all the interest, im excited about all this and it's nice to see others interested also.

Jerry
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Old 01-18-2004, 01:01 PM   #23
GreyBeard
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Was the air cold & dry ?
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Old 01-18-2004, 03:17 PM   #24
jerymon
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the high for that day was suppose to be 19 F and the percip. was 0
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Old 01-24-2004, 02:37 AM   #25
jerymon
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Default Final results

well I got the car back later than expected but the final dyno run was max power 171.2 @ 6000 rpm & max torque 191.6 @ 3750 rpm compared to the baseline max power 149.3 @ 5500 rpm & max torque 155.9 @ 3750 rpm

we didnt get to road test it due to snow so i'm going back next week. I scanned one of the hard copy dyno charts but it's huge and i cant find my editing software. im suppose to get the dyno jpegs.

I krept home in snow bumper to bumper traffic so i couldn't even drive it to see the difference the coinverter makes.

i'll post the charts when i get them sized and my opiion with the difference in the car.

Jerry
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