I finally did it...

Today I ordered:
- Stillen CAI Velocity Stack w/K&N
- UDP
- Stillen Y pipe

These mods are going on my bone stock 2000 Max SE 5sp
next Thursday. How much of an improvement should I expect?
My shop is telling me 40 hp at the crank, about 20-22 at the wheels. Sound right?

It will be dyno'd before and after the mods, so I should have some good info to share.

I'm also interested if what a fair price for these mods including labor would be.

MAXinNH

 

Well for 40 more hp at the crank you'll be putting out 262 hp flywheel. If you've got a stick that'll equate to about 209-222 wheel hp. If you're an automatic look for 197-208 wheel hp. (I used 15-20% loss on stick, 20-25% on auto). Those are some pretty nice numbers...

 

for the stillen y-pipe id say like $375 and $60-80 in labor. the others im not sure, sorry.

 

congrats man! You should be putting down about 200-205 at the wheels with those mods since you have a 5 speed. As for labor, between 60-100 for the y-pipe sounds about right. About the same for a UDP, I am guessing. Combined, the shop may do it cheaper

 

My total with labor for the above came to about $1300 including the before and after Dyno.

I almost added a Cat back too, but the gain seemed nominal for the costs involved. I also am concerned about how loud it would be. I figure I'll see what this gets me, and could always add the Cat back later.

Any speculation on 0-60 times I might expect?

MAXinNH

 

$1300 sounds a bit steep....If you figure:

$400 for y -pipe
$200 for intake
$200 for UDP (group deal is on right now for $185 shipped)

that comes to around $800.....$500 for installation sounds a bit too much. You can do the installs yourself if you have some tools....

are you in on the UDP group deal?

 

This shop charges $69/hr... I know its kinda steep, but choices in my area are limited, and I don't have the tools, knowledge or time to do it myself... My price for the UDP was $210 with the belt.

Also keep in mind that that $500 labor charge also includes the pre-mod and post mod dyno. Normally, this shop charges $150 for the initial setup and dyno, then $90 for each dyno after that...

So... Make my day.. What kind of 0-60 times might I expect???

MAXinNH

 

Oh, I forgot about the dyno runs....in that case, it's not so bad. Actually, $69/hr is on the lower side of what shops charge for labor. As for 0-60 times, it is tough to say....too many factors come in to play. Launch, traction, etc...all have a big impact. Stock, they say 0-60 in 6.7. With those mods, low to mid 6's? It's hard to say though....I could be wrong....

 

the best way to test times is to go to the track....:smile:

 

woah there.. where did u get 40hp?

 

I say make a deal for 3hrs labour total. Y-Pipe should take an hour..UDP close to an hour..and intake a lil under an hour. So 3hrs labour seems right.

 

This is what I have been waiting for!! Keep us posted on your pre and post. I am most interested in the y-pipe and how much it adds

 

My shop is estimating the following HP gains (Crank)

Y Pipe 25hp
CAI 7
Unorthadox UDP 8

For a total of 40hp gain at the crank.
We shall see!

MAXinNH

 

Those are inflated. Assuming you have a 2k fed spec 5spd, I'd expect what Madmax2k and I got - a combined 13 hp to the wheels from the Y and CAI (mine was SI). Assuming 15% driveline loss that equals 15.x hp at the crank.

I know this seems low compared to what you've been told but it is consistent with others who have dyno'd. (I was 190 stock and 203 with Y and SI). The Stillen numbers in their catalogs are way inflated. However, that 13 hp makes a very big difference!!

I'm installing UDP this weekend and will also re-dyno so you and I should have some interesting comparisons.

As for the dyno runs - make sure that they "smooth" the results so that the spike is eliminated at red-line. Otherwise your dyno results will look 5 - 7 hp higher than they really are.

Let us see those dyno results. They may give them to you in electronic format if you ask - for easier posting.

 

the estimates for the y-pipe seem a bit high. CAI+y-pipe may get you 20-25 at the crank. Add another 5-10 for the UDP. Well, let us know how it goes and keep us posted on the dyno results.

 

Another modded Maxima... who's next?

 

I wonder how many people have been influenced into modding by guys here....I know I was one of them....

 

Thanks for the tip on the Dyno.. I'll be sure to ask for them to smooth it, and try to get the results electronically..

I'm getting more psyched about the mods just talking about it here! Am I going to get in my Max post-mod and say "Holy Sh*&" ??? I hope so... What kind of 0-60 times are you doing with the CAI and Y Pipe?

 

I hope I didn't cause you any grief.

Mod it! Mod it! Mod it!

 

none at all.....I needed to get rid of all this money I had

 

Will the CAI and Y Pipe significantly increase the volume of my Max?

I'm hoping that there will be little difference in volume since I'll be leaving the stock exhaust on...

 

He said the shop told him it would make 40hp at the crank more...just going by his original post.

 

Well, Tomorrow is the day. Stillen Hi-Flow, Stillen Y Pipe,
and Unorthadox UDP. Dyno before and after.

I will post the Dyno results tomorrow night, if I can find my Out of my new modded Max!

Tonight on my way home from work, I raced a Grand Prix GTP.
We both wanted to go, so manuvered in traffic to line up at the first possible light. Neither of us launched quickly, I think we both wanted to see the other one go. We both hit it rolling at about 5-10mph. Side-by-side through 1st and 2nd gear. I pulled away in 3rd as we went over 60mph, but only by about a 1/2 car length. We both had to back off in traffic...He gave me a thumbs up as he went by... I hope to see him again after tomorrow!

M

 

Good luck with the install and the dyno. I know I speak for a good number of us who would enjoy to see the results.

 

Divide by 3 and you will be right there.....
:>
Fast Walker

 

Fast Walker, I hope you are wrong...

Just talked to the shop. Stock Dyno'd in at 177.8 hp at the wheels.. I'm really surprised by that. Thats a 20% loss from the crank. Any others show a similar stock measurement?

 

is it a 5 speed or auto?

 

Its a 5 speed...

 

hmmm.... that sounds kind of low then

 

Hi,
Thats within specs. Kinda on the low end of the bell but never the less...
Your y pipe should show at least 12 hp.
add another 5 hp for the intake.
Best regards,
Fast Walker

 

177fwhp is kind of low. Russ put down 183fwhp with his stock 2001 SE 5 speed. Of course we should remember that all dynos read differently and the real point of the dyno is to measure your gains and losses.

Honestly (you won't like this), you'll probably be looking at a gain of 10-12fwhp with those mods (245 flywheel hp total). The shop sounds like a "rice shop" quoting claimed numbers. Never believe them because they are there to take your money. I'd expect you'll be close to 190fwhp and 190fwtq.

You really shouldn't put a lot of care into the 0-60. You should be more concerned about the 1/4 mile. I'd figure you'll probably be in the 6.5 0-60 range and higher 14s in the 1/4 mile. Overall, expect about a .3-.4 quicker car over stock IN THE 1/4 MILE. For some reason, some of the 2000-2001 Maximas don't seem to take to mods like the older Maximas do.


Dave