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I know he is on stock cams I guess some of you guys cannot follow logic.
It says he laid down cammed sr numbers. Meaning his stock cammed RR SR20de with a few boltons made the same numbers that a S4 cammed SR20 motor with the boltons makes.
__________________
05 Tacoma 4x4
91 White SE-R built de coming up
If anyone would like to take my car themselves and helicoptor it to a greenhouse w/ simulated temperatures and wind resistance with a track inside, and drive the dyno along the side of the track and test it be my guest...
But I only had $150... I'm sorry. j/k
On a more serious note... to the many that want to get technical with it - yes, there are many variables to take into account. Weather, temp, ecu learning or break in, engine temp, time of day, who is driving, it could go on forever really... but knowing this I tried to keep as many variables as constant as I could. As far as weather and ambient temperatures and pressures... I TRIED to pick two days that were very close in temperature, but last week when I tried to go for the second time they told me they were booked and I had to choose another appointment date. The most ideal way to do this would be have been to do this all in one day, but I didn't have the time nor did they...
I am sorry that some people can't take the information for what it is but "it is what it is"... and I tried my best to provide the information in that type of manor. Thats why I put "YRMV" in the first post. If the differences are not believable, or you can't fathom the information true because of a few discrepencies that I can't control, you can come take the car and my old header this weekend and dyno it; (I'm being serious for once) as long as you pay me for my rental car
Again my point:
Let's not get too serious here... the results are not psalms, or verses in the bible or the koran... they are just results. The main focus is, for those of you have have older style header's, there is a possible gain if you upgrade... It may be small, it may be large; regardless there is a gain possible.
Again, for the press records, and in good nature "your results may vary"
And yes... I am a goofball
edit: Oh, and for the record, I blame Brian for the results, its his fault... he chose the motor back in March.
Last edited by XxToKeSxX : 12-28-2006 at 06:54 PM.
As far as the dyno graphs:
Anyone know why I have such a dip from 2k to about 4.5k in my tq readings? It is like an 8ft-lb drop and then it climbs back up... Its consistent, and I was thinking it could be an issue w/ timing? Is it because I'm using a 98 DE Intake mani instead of the JDM one? Is this normal?
I have the same issue.. i havent dynoed the car but i do feel a dip and its really noticable at 4000 rpm. I think it has to do with fueling as the car bogs at that point when i am at partial throttle... my setup is fuill usdm but I have s3r's so I dotn know if thats part of my issue
I plan to dyno this motor before i put the VE in and see what happens
__________________ KL0 P11 Sport
VE, JWT Pop Charger, Carbing: Tri-FSTB RSTB LCA Bar, SS Autochrome Header, Greddy Evo, Rear sway bar
------------ Surround Sound My VE thread
I have the same issue.. i havent dynoed the car but i do feel a dip and its really noticable at 4000 rpm. I think it has to do with fueling as the car bogs at that point when i am at partial throttle... my setup is fuill usdm but I have s3r's so I dotn know if thats part of my issue
I plan to dyno this motor before i put the VE in and see what happens
I actually did some looking into this... I asked around and got a little feedback. I've seen variations of this on almost every Roller Rocker dyno that I have ever seen on here. I'm not sure why it is but it seems to be very consistent.
Mine is about an 8ft-lb dip... others seemed similar. For me it climbs and reaches a max at around 2.5-2.7k... then dips and hits bottom at around 3.3k... but from then on its a climbing himalayan to the top to about 5.6k. Not sure why.
I was told could be a pulling timing issue (being pulled pre 4k at WOT) but it seems to be normal for stock ecu w/ no changes. It could be a fuel issue as well, but I really don't have any partial throttle issues... As a matter of fact I only feel held at full throttle. The car feels wonderful at partial throttle under 4k. It's only at WOT.
Maybe I should check my TPS
Last edited by XxToKeSxX : 01-04-2007 at 02:58 PM.
__________________ Eric Kim l 1991 Sentra SE-R l UCLA
Canon EOS 350D l Canon EF-S 18-55mm f/3.5-5.6 l Canon EF 50mm f/1.8 II l Sigma DC 18-200mm f/3.5-6.3 http://www.erickimphotography.com
Can anyone tell me the differences (lift, duration) between the stock USDM 98 cams and the stock USDM roller rocker cams?
On my race car I have a 99 USDM stock engine. It has WAI, Header, pulleys and open 2.25 inch dump-behind-driver exhaust. I would love it if my car put similar numbers to this car.
I bet with the 2.5 you will lose HP. Since you are on stock cams, pulleys, etc. We shall see though. My dad and I have the same mods he just got a 2.5 we will do a nice side by side action and find out.
I wish my dumb ass would have put some money down on that before I went again...
On a side note See if you and your Pops can get some dyno info on his car w/ the 2.5" as well... I want to compare numbers!!!!! See if this is consistent.
Quote:
Originally Posted by EPSentra
Is the Gen 3 a 2" unit? I don't know numbers so I'll leave the kudos to everyone else.
I think a Gen 3 has a 2" secondary. It is a great header but its a little outdated. It's primaries are a little smaller than the SSAC...
Quote:
Originally Posted by matt_pound
it's probably gonna be way lower just to make you angry, lol
Eat your words you sellout! I'm just kidding.... I wish you weren't selling your SE-R though... The RR b14 club man, where's the love... hehe
Quote:
Originally Posted by des_se-r
how much did it go for shipped, because i wanted a vrs system but i dont like those big tips that i see on other vrs exhaust here on the forum, i want something thats close to my old hks exhaust just with 2.5 inch piping
I'm sorry. j/k 
shhhh