looking to find out the gains from advancing the timing to 17 degrees on my 5.5 gen vq35, anyone have some rough numbers or dyno sheets? thanks

 

Someone posted this in the Other Cars section, but it wasn't done a Maxima VQ35, though. Regardless, the gain was minimal...a difference of 3WHP which could've just been attributed to a difference in conditions outside. Plus, timing advance seems to be pretty ho-hum on VQ35s. It's especially punchy and noticeable on VQ30DE-Ks only.

 

yea thats what i heard, but expected a little more than 3 whp, oh well. thanks arnold

 

Who knows, I have a dyno w/ GAB and a separate one with POP intake and 17* .. but who knows what the difference is when changing from GAB --> POP.


So...it's not really a good comparison.

 

The timing advance won't add any peak power because it's not in effect after around 2300 RPM.

 

That seems to be the common consensus. I would imagine timing advance to only be a way to regain some of that low-end that mysteriously tapers off after certain mods (exhaust, and some intakes).

 

how do you advance the timing i have a 4.5 gen and would like to advance my timing alittle bit

 

consult II at your local nissan dealer; they can charge you anywhere from $0-$150 ($150 being what they were going to charge me )

 

You need a 2000 and up ECU to be able to do this. The options that availiable to 4G's are JWT ECU, TS, ECU, piggyback such as SMT-6/7 and/or e-manage ultimate, or you can advance your timing indirectly via a S-AFCI-II/V-AFCI-II

 

whoop, true that...as you can tell, i hang out in the 5th gen forums a little too much

 

No one listens to me

 

wasn't your previous best like 222whp? then after the 17* n popcharger, you went up to 233whp?

 

With bigger injectors and a FPR.

Just wanted to complete that statement.

 

leaning out = advance timing
richen out = retard timing

????

 

Well in this case it's bigger injectors OR FPR since you only need one of them to increase fuel flow.

 

Yes.

..................

 

Thanks for the clarification.

 

219 Vs 233

 

wow thats a pretty big gain...14whp from only a 17* and popcharger....

i wonder what gains you'd get from open air filter

 

Mine has a bunch of holes in it

 

I bet the headers helped too

 

Actually,

I had headers both times, only thing changed was the POP and 17*

 

219 WITH headers? i did 218 with a ypipe!

 

so popcharger and timing advance 14whp wow..! I can't imagine if you would get some real timing advance put in!

 

i have a vafc2 i have an aem fpr in the trunk gonna install it soon i was thinking of getting an jwt ecu and bigger injectors soon

 

It's impossible for timing advance to increase peak numbers since it doesn't change the timing above 2300 RPM. And we all know about intakes so i'm as to how there's such a large gap between the two dyno's.

 

maybe the conditions on the day of the dyno were way different...

were you using a different octane fuel? new air filter, spark plugs, fuel filter, etc.?

 

Hmm, typically y-pipes add 8-12whp on an A33B.. so that would put you at one of, if not the highest stock #'s on here..

Also, comparing our dynos, you're 6MT, and I'm auto ... also, I only got 211 w/headers only. ... But Still outpower you 6K+ .:IBpissingcontest:.

Yup, still puzzles me to this day. What's amazing is the area under the curve that's added. Check this forum, all my dynos are scattered in a few threads.

I gained 9 from GAB ( same day/hour) but I'm still not saying the POP/GAB is Gods gift, only that it does show a difference, whether GAB or POP.


Days were similar. I can send you the run files. Everything's the same except for the tests being done on different days(important factor), and what has been mentioned (POP & 17*).

 

hey i was wondering if you could send me the run files for all your dynos?

steven88@mindspring.com

thanks manny!

 

No prob...

When are you going to get on the rollers?

 

not for awhile....i still gotta get the car fixed...thats my first priority...then after that, install the vafcii...then find an opening at the dyno shop...

 

 

not meant to be a pissing contest at all.AMGE55 or whatever his name is said he gained 33WHP from headers alone. i dont know if he was 6spd or auto. but i dont know why you only got 211 with only headers, i seen dynos, yes 6spds with intake that did that. so i dunno i need to get my HS headers on and Vafc-II in and see whats up...

 

I'm only being a selfish dynowhore/Queen

Invalid Post, DO NOT BRING MODERATOR INTO THIS DISCUSSION

 

:attention

 

My car must've been extra that day..

I'm sure it's over its ess now ...

 

nope your car was stickers dont add HP

 

Then my pop charger added 22 whp ... since I dynoed 211 w/ stock intake, and 233 w/ POP.

 

and people said intakes dont gain any HP!

 

They don't