Ok, just got back from my first trip to the dyno. This is the same dyno juice used and referred me to. It's called Crazy Horse in South Amboy, NJ. I must admit I was a little nervous waiting for my results. My other mods are listed in my sig.

Results listed are SAE corrected.

Dynorun #1

224.8 HP
241 Torque

Dynorun #2

235.2 HP
241.8 Torque

Dynorun #3

237.5 HP
237.5 Torque

The A/F ratio chart seemed decent. It shows an A/F ratio of about 12.5 to 13 from 4k to 5k about 12.5 from 5k to 5.5k and right around 11.9 to 12 from 5.5k to 6.4k.

I'm pretty happy with the results. Now time to figure out the next mod. My preference would be tires (still have stock potenzas), intake manifold (hopefully we'll have that option soon, and TS ECU.

 

Nice numbers! Didn't blubyu say the TS ECU doesn't help?

 

blu said the TS ECU gained nothing...

your numbers are very, very nice. you're and auto correct (saw you have the vb mod). Those are very good numbers for an auto!

 

Yeah, but I'm not ready to give up them yet. I'm hoping with some feedback from studman and EMG55 that TS will get some better results. Plus if we ever get that intake manifold option going, a raised rev limiter will come in handy

 

Any way you can post the chart?


If it's performance mod, I'd go for a S-AFC and fine tune your AFR...unless you're going with a TS ECU that is.

 

Sorry.....I'm slow today....

Is the first run (circa 225 hp) the baseline run without the headers and the next two with??

thanks
galo

 

wow thats like 285 at the crank bro...good stuff....now all u need are some motor mounts and tires and u'll be grabbin traction like molasses

 

I'm off of work until Tuesday and don't have access to a scanner or fax. Juice is going to try and come over tomorrow to take pics so we could post the charts.

 

No, all three runs were done this morning. I've noticed that the VQ's seem to have better numbers on the dyno when they are hot. The first run was done after the car was off for about 15-20 minutes.

 

Okay, thought you might have got them on disk.

Yeah, post them when you get a chance...we need to start organizing all these into one thread.

 

Oh....Crazy horse? I've never heard of them before

Nice #'s BTW

 

Um why don't people dyno mods "BEFORE" they get installed then again after. At the same shop?? The point of a dyno is to see the changes mods have made. Also post the graphs!! These peak numbers mean jack since every dyon and operator are different. This seems to be happening more often than not on the .org.

 

You should always keep doing dyno pulls until you get consistent results on a few pulls or until power starts to drop off and use the peak run as your gain.

When cars are cold, they're not going to put down as much as once the tires/fluids/etc. get up to temp. Once you heat soak the engine, they'll start to drop in power, so that's when you stop.

 

Thanks. Those are damned good numbers....congrats!!
galo

 

237.5 / 0.8 = 296.875 crank HP (using a 20% driveline loss)

237.5 / 0.75 = 316.666 crank HP (using a 25% driveline loss)

 

Did you actually read the post where he stated that he doesn't have access to a scanner or anything until another day?

I do agree with your point on before and after dynos (b/c most people never knew what the hell they started with in the first place), but you don't have to be a total jacka$$ about it. And besides, do you even own a 3.5L Maxima?

 

Now I remember seeing your dyno charts with Crazy Horse on them. Lots of beautiful Mustangs in that place.

 

Oh ok then. "WOW" great peak numbers! We learned alot about the actual gains throughout the curves of these headers. That dyno is only good as a baseline now for future mods. Also the data can be saved to disk.

Next: install TS ECU. Pull three runs.
Next: Intake manifold. Pull three runs.

PLEASE do not install both then dyno again.

 

Impressive numbers for no internal mods, i am curious to see what a computer upgrade and some cams will do?

Good old hotshot headers! I swear those are the most reliable headers out there, there not the newest kid on the block , but they sure do perfrom well!

3.0 H.O stop being a ball buster! Like quicksilver said, you don't even own a 3.5 Max , so your comments should be to a minumum.

 

You guys are hillarious. The point of a dyno is to see the gains in mods. Not "DYNO RACING". It doesn't matter if I even drive any maxima. The point being are the numbers are almost useless without the before dyno let alone a graph. Let alone all the other variables with dynos and shops. If anyone debates this with me is nuts.
Sorry but that is straight up. You guys love to fight with me even when I am right or I post an honest opinion. Here we go again....

 

If you got nothing better to say, keep it to yourself.

 

Looks like Blu is only giving up ~7whp/2-6wtq withOUT the timing advance(right?), lighter wheels, stock muffler, and cone filter.

 

Read my post again. That is "better to say" since no one else is saying it and instead riding peak number jocks.

THIS DYNO IS ONLY GOOD FOR A BASELINE and a few assumptions!

 

I'm talking about your first post!!

 

Profile-->Buddy/Ignore List-->Edit Ignore List-->"3.0HO"-->Update Ignore list.

 

Nah, it's fun when you can reply back!!

 

No worries I am done with this thread. PM me with questions and comments.

 

3.0...seriously u seem like an intelligent guy....maybe u wanna calm down with the flames and possibly post some pix and own some of these a$$ clowns......

like my new motto says- Go hard or go home!

 

are u going to help him pay for those dynos?


BTW, great numbers!

 

I have to admit, the car is quite loud with the Greddy cat back. I may put the stock rear section back.

3.0 This will be my only and last response to you. Many 02-03 auto Max's dyno from 190 to 200 whp bone stock. Enough that we could safely assume that on a healthy car the results will the same and serve as a baseline. In a perfect world we would all dyno before and after every mod. Unfortunately with time and money constraints we make do with what we can. Any and all information that org members contribute is valuable and adds to our knowledge base. I'm not looking for a pat on the back, just looking to share whatever I can to a community that has provided me with an enormous amount of information and re-ignited a passion I had when I was younger. PM me and I'll send you my paypal account if you want to contribute to my dyno fund. Also please provide a link to befoe and after dyno's for all of your mods.

BTW, it certainly looks like a six speed should break the 240 HP mark.

 

Sorry to thread-crap, but 3.0HO is absolutely right, even though he might come off as an *** about it - don't get personally offended. Unless you can provide a dyno for the same car without the mods as a baseline, how is one supposed to see the actual gain? This is true for any car, not just God's Chariot.

As for not having 3.5L/5th gen (yet), that doesn't stop trolls from this forum from venturing over to the 6th gen forum just to bash the 6th gen.

As it is, nice runs anyways.

 

Baseline auto VQ35 5th Gen can basically be assumed at 195 FWHP in a good state of tune (that's the safe average). That's pretty much a given. So he's basically made a 42.5 peak HP addition (for his total mods).

Yes, it would be nice to dyno each and every mod, but that's $75-$100 per session times X amount of mods, which is a little too expensive. If we could combine our efforts (Injen CAI makes X amount of HP on all stock cars, HS Headers makes X amount of HP on stock cars...etc) and compile a database for STICKY purposes, then all will be good. Negative attitudes, people who have no actual technical advice or additions...they need to stay out of these conversations.

 

Considering MOST don't dyno PERIOD and those that do are not able to get black/white before and after dynos for EVERY mod, you guys are nit picking.

As **** as we Maxima owners try to be with "dyno proof", definitely including myself, you can NOT absolutely DEMAND before and after, it isn't going to happen, this is the real world where budgets are limited. IF you had coughed up the money for a before dyno, I'm sure he'd have been willing.

I'll take his AFTER of all the "typical" mods plus the headers and compare it with Blu's. This is NOT Hot Shot trying to sell you XXhp for $Y, so don't b!tch and groan that he didn't get a before dyno.

Blu's recent dyno and now his AFTER dyno with very similar mods/results are pretty damn good information IMO.

 

Headers are worth a before and after dyno. If you can't afford to dyno before and after then you shouldn't be in this game. The cost of the headers and the install alone is worth the $150 for dynos. Every car is different, every dyno is different, every operator is different etc... Dyno should be used to take away assumptions not use others since there are so many variables. Again if you can't afford to dyno then you shouldn''t be modding in the first place.

PS the plus side is that he has a baseline now for the TS ECU assuming he can afford to dyno again and doesn't put other mods on aside from stickers, wings and bulbs. Also go to the same dyno, use the same rims, use the same correction factors. Please do not do your intake and ecu mod at the same time and dyno again.

 

I went to a dyno once with my 95 it was putting out 262 HP with a 100 shot and it ran 12.6 with that setup.

This year I plan on doing many mods to the 2k2 but no plans to dyno, I prefer to dyno on the track. Thats where you can really tell what its doing. Especially with suspension etc where track times can vary greatly, so far it works for me.

Basically you already know what the headers, intake etc etc are going to give you so I feel its a waste of money and time to keep proving it over and over again.

Unless you are playing with something that no one else has tried it really isn't worth it.

Besides I am in this game to race not to become a queen.

 

I agree good points you make. However the TS ECU still seems questionable and a few more before and after dynos will give us better data.

 

What's it to you if he does not get a before and after dyno? He doesn't HAVE to get a before dyno because almost everyone knows what a stock 3.5L auto can pull as there are many people who have already dynoed. Why don't you go and dyno after EVERY mod. You will see how expensive it gets especially after having paid ~$300 to have the headers installed. I bet you can't either. I'm done with you and I'm done with this thread.

BTW 03blksete, good pulls. Hope you're enjoying the headers. How do they sound with the stock rear section?

 

I'm running the full Greddy Catback and it's loud. I'm thinking of going back to the stock muffler rear section maybe modified with larger piping piping like org member Larry did.
Here's a link to the thread by Larry. Check post 11 for a desciption of how he modified his rear section.

http://forums.maxima.org/showthread....ffler+modified

Blu is running the stock muffler rear section.

 

Nice peak numbers any way you can get the runviewer files on and disk or get them e-mailed to you. I'd like to overlay my dynos with yours. I also plan to send the ECU back and get the car leaned out some more in certain areas as well as a pop charger filter to replace the stock airbox to help the car breath better at the track. My car never seems to dyno as high peak as others but performs great at the track.

 

Did I gain anything from it....not really but I can't really say it doesn't help. The raised rev limiter is great for the track and if you send them a before dyno they can tune the ECU for a better a/f mixture and you will gain power from that alone.