http://www.geocities.com/maximase169...l?983676776470

click here to see my dyno page....... wast what i expected but its its some strong hp!

 

How about the RT Cat dyno..any gain before and after the installation??

Tim

 

the guy was taking too long to take me so i went by myself... so when he takes me i will know the gain... sorry

 

Can you post your dyno image here? I can not view the Geocities hosted image.

 

check ur mail mdeal!

 

Where's the pic located on Geocities, Will? If you tell me the location we can help you post it up.

 

uun i'd stay away from the Random cat... we've got better units for less money... Will's car is SUPER clean... Nice ride!

 

What do you mean, so was there any gains for the RT Cat? what kind of Cat are you using?

Tim

 

only 168 hp with all your mods. what's the deal here. someone else has 203hp with just a y-pipe and intake! Is it because your car is an auto? I'm confused who does 222hp with 15% loss go to 168 ( and that's with mods) 168hp equals 197 at the flywheel. what gives?

 

when the turbo magazine dynoed a bone-stock 5 speed 00 SE with 17inch wheels, it pulled somewhere near 187 hps...
222 to the flywheel...187 to the wheel...15% of 222 is about 33...222-33=189...that's close enough...
i think auto lose additional 10 to 15% to the wheels, but considering he had an intake, a y-pipe, RT CAT(well, ok...but...it's a free flowing cat..)...should have pulled at least 180 to the wheel..wonder why....

 

uuum guys.. he has an AUTOMATIC! he'd be laying down 180ish about 14-18% of his power is lost in the drive line. the manual tranny only looses between 5-8%. how many miles are on your car, will? and not everycar is built the same... Nissan may claim tight tolerances but engine and tranny temps, fuel type (87-89-93) all are a factor how much the engine is willing to pony up. and from what he says farther up.. he doens't have a random cat.. thats a future mod.

 

My 2k dynoed 185hp at the wheels with a ypipe....2k max auto.

 

DMan_2k (Diederik) dynoed at about 170 (stock) before his SC.

 

don't you have a y-pipe, intake and Pulley on your car?

 

there are actually maxima drivers who use 87 octane fuel?

 

Aren't dyno machines different from one to another? For example, can the same car may have a different power rating on different dynos? If so, that may be another explanation.

 

no http://www.dynojet.com model 248C's are the most repeatable and reliable dynos made. the mustang dynos (double roller) units aren't as consistant and have more than one contact patch which will cause an improper load on the drivetrain jading the results... the biggest variable is engine temps and sensor readings on the motor, which cause it to run different. Wills first run was 170hp and 171 lbft... but his motor was stone cold. after letting it run for a few mintues bringing up the oil temps and tranny temps the 168 number was laid down... which is a more realistic figure. yeah there are quite a few that use crappy gas and they come into the shop whining cause they droped 20k on a car the makes strange noises... I love to tell them to stop being so cheap and get decent/proper fuel.

------------
oh, just as a refrence.. 2 weeks ago was Cobra dyno day. there were 12 Cobras and 5 of which were bone stock. and 3 laid down identical numbers where the others were from 240hp to 275hp.. 270 seemed to be ther magic number though.. and only 1 laid down over 300hp (BadPNY a guy from Alabama).. a 2000 S281 only made 240hp/280lbft... not all of the same cars are the same... minute compression differences, if it was built on a monday morn or a friday afternoon just little things make a big enough diffrence to
toss a wrench into the works.

[Edited by 1FST2M6 on 03-06-2001 at 12:53 PM]

 

i have a y-pipe, intake, crankshaft pulley, eibach springs (after the dyno), strut tower brace (after the dyno) and i do have the random tech high flow cat which has recently really pissed me off.... the heat shield on the top of it came lose and rattled like hell whenever i accelerated it would rattle like hell so i ripped it off........ but about the results i was really disapointed i use 93 octane and run my car good and strong ever day the sheet that printed out was the first run........ but i remeber another run that said 180 and he printed this one out for some reason but still for all the mods that i have done i would expect more........ dont know what it is but alot of it is my auto tranny i guess thats the price i have to pay until i get the level 10 torque converter.....

 

I say dyno somewhere else and see what numbers you get because they seem way off. If the new numbers are within range, then you probably got a lower hp car, but if the numbers aren't even close, then.......

With all those mods you should be pulling somewhere within the 180 range...

Let's do a guesstimate:
<pre>
intake + y pipe = 10
udp = 2
cat = 1
= 13
</pre>
Say your car is about 170... + 13 = 183.

<i>I am being conservative on the numbers</i>

 

I agree....The numbers do seem a bit low given all those mods...Try another dyno machine out if possible....you never know what differences you may see

 

Question what is the average dyno for a Stock Maxima auto trans?

The other day I dynoed 180hp and 172tq with stillen intake and muffler. Is that good or bad?

 

That's good, but what were the weather conditions during your dyno.

 

Sunny day about 55 degrees. Maybe warmer inside the shop though.

 

That is really good with just an intake and exhaust for an auto. Does the intake really make much of a difference on the dyno since the car is standing still?

 

I'm not sure if it makes a differnce or not but like everybody say "every car is different".

 

Actually, this shouldn't matter at all. The Dynojet 248C's have temperature and pressure sensors and calculate those out to some standard condition. That is what the "CF" value is on the printouts. Just a side note, because it's also correcting for different barometric pressures, it's correcting for altitude since they directly coorelate to each other.

Now, that's not to say that temperature doesn't matter. If you had your hood open, fan's blowing, etc that would definitely affect your results.

This is an important thing to keep in mind when companies are quoting dyno-proven HP increases by using their products. We should always look at these correction factors on the printouts because one could easily make their products dyno higher by adjusting these factors. If the pre CF isn't very close to the post CF, someone's messing with you!