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The 5.7 gen Maxima Latest dyno= 301.58HP 277.27 TQ Closed cutout, stock cams.....

Dyno Discussion and Slips Discussion and a moderated "Dyno Slips" sub-forum to allow for posting of dyno slips.

The 5.7 gen Maxima Latest dyno= 301.58HP 277.27 TQ Closed cutout, stock cams.....

Old 07-04-2012, 09:59 AM
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Originally Posted by SR20DEN View Post
I would assume you've done a wonderful job on the fuel tuning so I wouldn't say it was that. When I see chart go flat my first thought is airflow restriction. Perhaps there isn't much you can do about it idk. Something is obviously hitting peak air velocity. The question is what exactly is it? One guy mentioned the intake manifold, yes perhaps it could be. or it could be other things. We're all here to learn from each other by exchanging ideas. I am only curious.

Yeah, Id like to get a custom intake manifold with a 87 or 90 dbw TB. But I can say for stock the 09 intake manifold is INSANE. It flows great even a stock 09 i/m with vias and all that.

Also going from 3.5 to 4" intake pipe did not change the flatness at all. It just pushed the whole line up!


I would like to see what this can do with stock cams though! longtubes and custom i/m could really push it far.
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Old 07-04-2012, 10:10 AM
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http://www.sg-motorsport.com/?p=1110

The 2ed graph shows:

So the first step was to free up the intake and add long-tube headers. This is what our race engine looked like with stock cams, longtube headers and an open intake:


From 6000 rpm on its relatively flat power. Even with cams.



It was not untill they used a different intake manifold that after 6k it started making more power, then as they rev further and use ITbs it really takes off after 6k




Thing is they started out with long tubes so as that starting point, the intake manifold is pretty much what makes power after 6k rpm. Once you can rev to 8k you really have to let it breathe to make more power.


All that means $$$$$$$$$$
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Old 07-06-2012, 09:28 PM
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Originally Posted by SurraTT View Post
Yeah, Id like to get a custom intake manifold with a 87 or 90 dbw TB. But I can say for stock the 09 intake manifold is INSANE. It flows great even a stock 09 i/m with vias and all that.

Also going from 3.5 to 4" intake pipe did not change the flatness at all. It just pushed the whole line up!


I would like to see what this can do with stock cams though! longtubes and custom i/m could really push it far.
Any update on those Headers when they will be done....
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Old 07-08-2012, 07:14 AM
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Originally Posted by Rods03Max619 View Post
Any update on those Headers when they will be done....
http://forums.maxima.org/5th-generat...e-headers.html
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Old 07-08-2012, 03:18 PM
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Originally Posted by FastnFuriousMax View Post
Already knew about the thread I posted on there, just he said Darren will test them out for him, thats why I asked.....last post was 5/18....were in July now.....
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Old 07-09-2012, 06:32 AM
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Originally Posted by Rods03Max619 View Post
Already knew about the thread I posted on there, just he said Darren will test them out for him, thats why I asked.....last post was 5/18....were in July now.....
If those are ever built I don't think we will see huge gains personally. If you compare maxima w/ Cattman against a 350z with longtubes they are close enough imo not like there are huge differences...

Granted on Surra's car you might see a larger gain as he is pushing out roughly 15% more air than most NA. But for anyone without the engine swap I think the gains would be marginal at best. If you arn't sucking in more air there is no need to have a larger exhaust. To suck in more air you need cams and a better IM. Both the new headers, cams, and a custom IM are basically the same price. Cams would make more sense as the exhaust as it is already upgraded imo. He can always throw on a 3'' Y pipe for small money if he really feels the exhaust starts to be a restriction. Everything I have read on our motors leads me to believe the real restriction is getting air in, not out. Hence the massive cams and crazy intake manifolds SG used and everyone else uses who make high NA HP numbers. The Fontana 350z basically proves that as well.

Surra have you contacted GTM for cam advice? Or just JWT?

Last edited by FastnFuriousMax; 07-09-2012 at 06:49 AM.
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Old 07-09-2012, 11:13 AM
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Thanks for the info....

Originally Posted by FastnFuriousMax View Post
If those are ever built I don't think we will see huge gains personally. If you compare maxima w/ Cattman against a 350z with longtubes they are close enough imo not like there are huge differences...

Granted on Surra's car you might see a larger gain as he is pushing out roughly 15% more air than most NA. But for anyone without the engine swap I think the gains would be marginal at best. If you arn't sucking in more air there is no need to have a larger exhaust. To suck in more air you need cams and a better IM. Both the new headers, cams, and a custom IM are basically the same price. Cams would make more sense as the exhaust as it is already upgraded imo. He can always throw on a 3'' Y pipe for small money if he really feels the exhaust starts to be a restriction. Everything I have read on our motors leads me to believe the real restriction is getting air in, not out. Hence the massive cams and crazy intake manifolds SG used and everyone else uses who make high NA HP numbers. The Fontana 350z basically proves that as well.

Surra have you contacted GTM for cam advice? Or just JWT?
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Old 07-09-2012, 11:49 AM
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Originally Posted by Rods03Max619 View Post
Thanks for the info....
Out of curiosity what would make you think the engine is limited by the headers?
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Old 07-09-2012, 02:25 PM
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Originally Posted by FastnFuriousMax View Post
Out of curiosity what would make you think the engine is limited by the headers?
Didnt say it was limited, just people always say better design, more free flowing get more power...I know Surras car is a Beast for NA, I know Sparks made some nice power with the Frankstein intake manifold, I just want about 255 to wheels, and if I want more will probably do a Turbo, but its all if the dollars allow me to....
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Old 07-09-2012, 08:49 PM
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WOW! another sick build! +dyno :D

just got into the max world with my 00vi swap, started thinking about vq35 swap and now this... it never ends! awesome

2nd gen rwd vg30det build, "07vi" swaps, 5.7 swapped maxima. I love maxima.org!!!
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Old 07-10-2012, 05:23 AM
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Originally Posted by Rods03Max619 View Post
I just want about 255 to wheels, and if I want more will probably do a Turbo, but its all if the dollars allow me to....

You can do over 255 to the wheels with existing bolt ons (stock cams) and a proper fuel tune.
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Old 07-15-2012, 12:44 PM
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Originally Posted by SR20DEN View Post
You can do over 255 to the wheels with existing bolt ons (stock cams) and a proper fuel tune.
even though he is auto
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Old 07-16-2012, 05:21 AM
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I'm really impressed with the 5.7th gen setup, and that will be a target if I get to the point of my 03 being a problem....with the Haltech tuning it really turns that 7th gen engine into a World Class sprinter, I'm sure that setup can reach 325-350 without cams or even larger headers tubes....I'm, sure with a little bit of port clean up those numbers can be reached along w/Haltech..congrats and keep doing it dude...
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Old 07-17-2012, 08:28 AM
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Originally Posted by CMax03 View Post
I'm really impressed with the 5.7th gen setup, and that will be a target if I get to the point of my 03 being a problem....with the Haltech tuning it really turns that 7th gen engine into a World Class sprinter, I'm sure that setup can reach 325-350 without cams or even larger headers tubes....I'm, sure with a little bit of port clean up those numbers can be reached along w/Haltech..congrats and keep doing it dude...


Thanks man! It sure was worth all the work Ive put into it. It could benefit from a more experienced VQ + Haltech tuner but for now its fine. The Long term goal is 350whp n/a. That could be 2+years away though aha.
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Old 07-18-2012, 11:00 AM
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Originally Posted by SR20DEN View Post
You can do over 255 to the wheels with existing bolt ons (stock cams) and a proper fuel tune.
I'm almost positive it can be done with a modified OEM airbox and a stock cat-back.

You were close as was Elon (6spd_hayes).
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Old 09-02-2012, 12:51 PM
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Bump curious to know how that spec stage 3 is holding up for you so far.
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Old 09-02-2012, 12:52 PM
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BTW I may have a set of aftermarket cams (BNIB) that might interest you.
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Old 09-02-2012, 02:06 PM
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Originally Posted by VQ'rInWLA View Post
Bump curious to know how that spec stage 3 is holding up for you so far.
Its holding up good, just having issues pedal feel and grab point changes from very little pedal movement to just catching when its allmost fully out. Ive blead it a few times, i think the master cyl is not good.


Originally Posted by VQ'rInWLA View Post
BTW I may have a set of aftermarket cams (BNIB) that might interest you.
They have to be HR Specific cams (due to trigger wheel differences). what do you have?
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Old 09-02-2012, 02:07 PM
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PM coming your way about the cams
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Old 09-03-2012, 04:31 PM
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It may be a bit late but would you happen to have external dimensions for this engine?
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Old 11-15-2012, 05:47 PM
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Sick power band for a motor w/ oem cams.
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Old 01-17-2013, 04:06 PM
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Love this car man
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Old 09-15-2013, 03:24 AM
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How has the engine temp been holding up with the oil cooler delete? I deleted mine but haven't had a chance to drive the car. I'm sure you have seen it on NC lol.
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Old 09-17-2013, 06:56 AM
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Originally Posted by mrjasonlyrics View Post
Love this car man

thanks!


Originally Posted by steeds View Post
How has the engine temp been holding up with the oil cooler delete? I deleted mine but haven't had a chance to drive the car. I'm sure you have seen it on NC lol.
seems fine, i do want to get a thermostatic cooler one day.
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Old 09-17-2013, 06:57 AM
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should be going to dyno to test out some things here soon!!!!!!!!


not really expecting too much on these stock cams, but im working on cams too!
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Old 09-30-2013, 09:11 PM
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I have a set of tomei 272. Rev up cams
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Old 02-01-2014, 02:27 PM
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got a feeling this thread will be "old" soon...
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Old 02-01-2014, 09:58 PM
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