slightly modded Si put down 200+whp...mine!

[sickyute]

so before anyone dispute this i have the numbers to show! The numbers are corrected and are dyno jet numbers.
it was a hot day...like 90F give or take a few...shop is in pompano beach...there were many runs...before i go to my numbers please read..or just skip and go to the numbers...whatever

Anyway...a bunch of us went....3 Si...1 gt mustang...cobalt SS....srt-4
My mods are on my car domain and in my profile.
Other 2 Si...
1 bone stock!
1 SRI/DC e/elminated cat but stock header,hondata img
GT Stang...Stock but has a computer programmer thingy
cobalt SS...smaller supercharger pulleys, computer thingy
srt4....stock with mopar CAI
numbers for the above are:
-GT stang posted a 195-198whp can't remember tq numbers...right on according to the manufacturer of the computer program module

-Cobalt SS posted 234-238whp...again can't remember tq numbers

-SRT-4 posted 228 on his first pull....can't remember tq number...but it was spot on to another srt-4 that dynoed his car at another shop on a different dyno with the same mod...by the way that guy has a stage 3 going on in the coming week.

Now for the Si..
bone stock Si made 3 runs like all the rest....
first run was...

now the second and third run he romoves the air filter and uncovered the box and he posted a 193HP and can't remember tq numbers on the second...on the third ran 199whp!!!! and almost 150tq but his car leaned out some the tech guy said and his car cooled down a bit so that made power for him..but everyone over there was absolutley shocked!!!!RSX owner was over there and couldn't believe it...but he said his car dyno's there and the numbers are correct...cuz he also dyno's elsewhere and get the same numbers as he does in that shop. his rsx by the way is very fast...has a huge turbo etc etc...anyway here is the bone stock Si's other chart...show's all 3 runs...


Other Si(gil/954k20) with eliminated cat but stock header, dc exhaust, SRI and IMG went like this...
1st pull....198. something whp
2nd pull.....199-200 i think it was
3rd pull.....201. something and 150 tq...he has his own post so u can check that our for exact numbers
problem with his car though was that he was running very lean and could not get any at the top...i don't have his charts...sorry...but if he can tune for that he'll make more...

My Si was running rich...i only have one chart that shows the AFR...but the others were even higher...guy said i'd get a lot more if i could tune the AFR and so on...looking up for me... anyway check my profile. or my cardomain for my mods...I only have the chart for my 1st 2 pulls....i'll explain my third pull after...

1st pull...shows HP and AFR


2nd pull....HP and Tq...


3rd pull.....this pull was even stronger than the second...the curve was higher than the second from the bottom all the way to the top but then the car began to run rich as it went near the top it went flat and the numbers were right in between the first and the second run...the guy didn't give me my third pull...looked like i would have hit 205 but then it went flat right about 198-199. anyway if there is a way to tune for that right now let me know!!

That being said...the Si is more capable than any of us thought and responds well to mods if done right...if done right cuz look how the first 2 ran lean especially Gil, who eliminated his cat(real lean),bear was kinda lean but kinda rich also, and myself who was running real rich...but we'll get to where it's ideal eventually...i'll post the other charts for all the other cars when i can get them in my hands...

AEM CAI has been said to cause a hesitation/bogging about 4000 rpm give or take by hondata and others...it was noticable in the charts...wish i had them to show...anyway this is caused by a fluctuation in the reading of the MAF sensor....it's not getting proper readings because of turbulent airflow...so the car can run lean or rich in my case it kept running rich...seems so for every other person who has it...

another stock unbroken in Si ran 180whp and a can remember tq numbers.
check urbanracer.com for that.

all Si pulls and cobalt pull were 4th gear pulls....dont sure of the other cars...mustang was an auto!

now for those of you who dispute the numbers...i'd like for u to take me to a dyno of your choice and i will pay to prove to you that the numbers are correct..PM me whatever and we can do it...i feel confident that they are correct cuz a number of people were there and backed up the shop, dyno and numbers....the stock Si's dyno was very strange but after he removed the filter etc, leaned out etc...but i'll go to a dyno of ur choice and pay just to prove all numbers are correct...Si along with other cars.

so now let the wars start....

[954K20_SI]

201 hp right here!...and i love this write up..lets see what those fudge packers at club RSX have to say about this!

[sickyute]

Sorry...GT numbers were 295-298...call it 300!

[bizzybearfigiblue]

very good post accurate all the way except for i just took out my filter i didn't leave the box open. good write up to let everyone know how it went down.

[sickyute]

Originally Posted by bizzybearfigiblue

very good post accurate all the way except for i just took out my filter i didn't leave the box open. good write up to let everyone know how it went down.

I stand corrected.

[Silver8th]

Nice write up man! Thanks for the dyno charts.

[larryd]

Are you sure it was a dynojet? I've never seen the printout of a dynojet look like that and it states dynamometer on the printout?

Dynojets all use the same software hence they all have the same printout for results.

NM, I just watched the video and I can see it is obviously a dynojet. Are the numbers SAE corrected? I want to believe but I find it hard to understand how the one Si does 199whp stock.

[sickyute]

yeah the numbers were corrected...i think his numbers would have been lower if he didn't remove the filter...i can't explain the numbers..but i'll go to another dyno sometime soon.

[larryd]

It just seems really odd. I mean I can understand the one Si making 201 with the mods but the stock one reaching 199 just doesn't add up. Did they put a fan playing directly on the stock airbox with no filter? Could be like a boost effect

[Silver8th]

Originally Posted by larryd

It just seems really odd. I mean I can understand the one Si making 201 with the mods but the stock one reaching 199 just doesn't add up. Did they put a fan playing directly on the stock airbox with no filter? Could be like a boost effect

Yeah, I dont understand that either. It's amazing how much just the filter can restrict.

[06redsi]

It was the short shiffter that made you hit 200whp.

[sickyute]

Originally Posted by larryd

It just seems really odd. I mean I can understand the one Si making 201 with the mods but the stock one reaching 199 just doesn't add up. Did they put a fan playing directly on the stock airbox with no filter? Could be like a boost effect

the fan wasn't on the filter....but there were 2 fans directly infront of the car....a huge one and a little one they placed right where the intake would suck air in..in either case to me that doesn't sum up a 199 stock car...we'll see though.

[bizzybearfigiblue]

1st pull 190.4hp about 144tq........stock just like i drive it
2nd pull 193.4hp about 144tq........just took the filter off
3rd pull 199.0hp 150tq.......filter still off car had about 5-10min cool down

anyone want to dispute just go to my post and there is a link to my 199hp dyno video. thanx

[skittleslegend]

Originally Posted by larryd

It just seems really odd. I mean I can understand the one Si making 201 with the mods but the stock one reaching 199 just doesn't add up. Did they put a fan playing directly on the stock airbox with no filter? Could be like a boost effect

Could be a ringer. Car manufacturers have been known to often have a few cars that come out of the production line, performing higher than the average car off the line.

[Ep3racer954]

damn man! great write up.. i really wish i could have been there! damnit! next time deffinately

[Ortiz83]

good numbers, but no everyone is going to run with no filter and if they race say, "hey wait ti'll my car cools down." nonetheless, cool numbers...

[bizzybearfigiblue]

Originally Posted by Ortiz83

good numbers, but no everyone is going to run with no filter and if they race say, "hey wait ti'll my car cools down." nonetheless, cool numbers...

i raced it one time with the filter off cause i was bored. and i took the filter off to see how much it would increase with a little more air. like a fake intake.

[Ortiz83]

i think a lil bit more than an intake, an intake is stilled filtered and yes its a good filter but still not the same as without one. nut as i stated good numbers. but its cool man and to let you know, i am not arguing wit you incase you comback at me or you take my replies the wrong way...

[bizzybearfigiblue]

Originally Posted by Ortiz83

i think a lil bit more than an intake, an intake is stilled filtered and yes its a good filter but still not the same as without one. nut as i stated good numbers. but its cool man and to let you know, i am not arguing wit you incase you comback at me or you take my replies the wrong way...

i'm not on here to argue with anyone who leaves me positive comments only with the haters

[larryd]

Originally Posted by skittleslegend

Could be a ringer. Car manufacturers have been known to often have a few cars that come out of the production line, performing higher than the average car off the line.

obviously that is very possible and no two cars will dyno exactly the same it just seems high thats all.

I have my own theory though. You can see that you gained 4whp from taking out the filter. That honestly is not that hard to believe especially considering they had a snail fan blowing air directly into the intake scoop creating a nice breeze and without the filter being there to restrict it at all 4whp is easy to believe. And then after the car cooled down it gained 5whp more once again not that hard to believe considering I know personally I've gained 10-15whp on my GSR from letting it cool down.

Now would I ever run my car without a filter. HELL NO. If anything and I do mean anything manages to get scooped up and sucked into your throttle body your hosed. If you want to do that and still be semi safe get a pair or stockings and use them to cover the airbox but make sure they are secure so they do not get sucked into the throttle body either.

and BTW bizzybearfigiblue I am not "hatin" on your numbers. I am just trying to find the logic in it.