How Does 1999 Emission vs 1995 Emissions affect Performance
#1
How Does 1999 Emission vs 1995 Emissions affect Performance
Basically I have a 1995 Engine that is going to be built (Rods,Pistons,Head Work, Etc.) but need another maxima to swap it into. I have a lead on a 1999 Maxima but as I understand it, the emissions differ from my previous 95 and resemmble more of the early 5th Gens 2000-2001,
I was thinking of elminating the Emissions Items anyway, so is there really any reason why the 1999 wouldn't be a prime canidate for my new engine? Or would I be better sticking with a 1995-1997 Model?
Thanks!
JP
I was thinking of elminating the Emissions Items anyway, so is there really any reason why the 1999 wouldn't be a prime canidate for my new engine? Or would I be better sticking with a 1995-1997 Model?
Thanks!
JP
#2
stick it in a fed spec 95 and enjoy every benifit only avail. with that car. less weight, almost no emmisions, and a cheap price.
99's have precats, electric egr, silly ecu, swirl vavles, and would cost more, all while being heavy.
99's have precats, electric egr, silly ecu, swirl vavles, and would cost more, all while being heavy.
#6
I don't believe in modern day factory freaks.
Tolerances are kept pretty tight in the industry today, as well as 7 years ago.
There's not enough information/data that supports 99 engines being 'weak' .
Tolerances are kept pretty tight in the industry today, as well as 7 years ago.
There's not enough information/data that supports 99 engines being 'weak' .
#7
Originally Posted by NmexMAX
Why did a 99 break 200 fwhp, N/A, w/o an ECU?
#8
Originally Posted by NmexMAX
I don't believe in modern day factory freaks.
Tolerances are kept pretty tight in the industry today, as well as 7 years ago.
There's not enough information/data that supports 99 engines being 'weak' .
Tolerances are kept pretty tight in the industry today, as well as 7 years ago.
There's not enough information/data that supports 99 engines being 'weak' .
#10
Originally Posted by nismology
Anomaly. He gained no HP by adding a JWT ECU. That fact right there is the red flag to me
#11
well since this guy wants to slap in a built vq into the 99 chassis hes going to have a crap load of 99 emmissions crap to deal with. may as well save time and work with using a different year.
#12
Originally Posted by nismology
Anomaly. He gained no HP by adding a JWT ECU. That fact right there is the red flag to me. I'd bet my life that the 200 WHP (sans JWT ECU) dyno was inflated. There haven't been ANY other dynos on this site or otherwise that suggest it's possible to even approach 200 WHP w/out an upgraded ECU on an internally stock 3.0 with a MEVI.
#14
Originally Posted by zack342
MY TUNE FROM JWT WAS VERY LEAN. I SENT BACK THE ECU AND THEY SENT ME A NEW PROGRAM. I WILL REDYNO LATER THIS MONTH.
#15
Originally Posted by JSutter
stick it in a fed spec 95 and enjoy every benifit only avail. with that car. less weight, almost no emmisions, and a cheap price.
99's have precats, electric egr, silly ecu, swirl vavles, and would cost more, all while being heavy.
99's have precats, electric egr, silly ecu, swirl vavles, and would cost more, all while being heavy.
NATS/NVIS?
99 is a fresher enine than 95.
just do a 98 fed-spec engine and you are good, make sure to change the clutch when engine is out.
why not do a 3.5L instead of the 3.0?
HAPPY NEW YEAR EVERYBODY!!!!
#17
Just out of curiousity what emissions controls would I have to worry about if I did get the 1999 model. As I mentioned I would like to eliminate the Emissions parts, however would doing so cause any more headaches vs doing so with a 1995? Drivability Issuses, Etc...?
Thanks for all the help guys!
JP
Thanks for all the help guys!
JP
#18
Originally Posted by nismology
It still doesn't explain how your MEVI/stock ECU dyno is the highest that we've ever seen. By a pretty wide margin at that.
#19
Originally Posted by zack342
Paypal me a $100 and chose any of the massachusetts memebers you trust and i will go dyno and they can be present.
#20
Originally Posted by nismology
Anomaly. He gained no HP by adding a JWT ECU. That fact right there is the red flag to me. I'd bet my life that the 200 WHP (sans JWT ECU) dyno was inflated. There haven't been ANY other dynos on this site or otherwise that suggest it's possible to even approach 200 WHP w/out an upgraded ECU on an internally stock 3.0 with a MEVI.
and technically my '96 did 201 WHP with a stock ECU and variable intake manifold.
Back to the subject on hand I would go with a '95 Maxima for it's limited emissons equipment and lightest weight. I had to go with a '96 for stupid Massachusetts OBD-2 emissons reasons, but I plan on going with a 95 ECU so I can use the '95 emissons stuff without any CELs.
#21
Originally Posted by 98SEBlackMax
That dyno is not over-rated, that dyno is more of a heart breaker if anything. I have dozens of dyno pulls from that shop over the years. For every dyno test my car was on par for every mod that I did. No factory freaks here.
#23
Originally Posted by zack342
My car did and i have the dyno to prove
#24
Originally Posted by nismology
No other internally stock 3.0 with MEVI and stock ECU has gotten close to 200 WHP. That's the point.
And if it was reading high I would think my '96 which has alot more done to it than Zack's would read higher than 201 WHP. Also to my knowledge no one else has the same combo of modifactions as Zack's '99. So it would be almost damn impossible to repeat the results anywhere else...
#25
Originally Posted by nismology
Dyno numbers can be inflated depending on what barometric pressure the dyno operator enters and also the location of the ambient temperature sensor. I'm going by the average of all the dyno's i've seen the 2+ years i've been on this site. Your motor isn't magically stronger than any other VQ30DE that ever was.
#26
Originally Posted by 98SEBlackMax
And if it was reading high I would think my '96 which has alot more done to it than Zack's would read higher than 201 WHP.
Also to my knowledge no one else has the same combo of modifactions as Zack's '99. So it would be almost damn impossible to repeat the results anywhere else...
#27
Originally Posted by zack342
I have used this dyno to everytime I have done mods to my car so your disbelief means nothing.Anytime you wanna paypal me some money choose a dyno in the area and i will be happy to slap her down.
#28
Originally Posted by nismology
Barometric pressure changes all the time from day to day. If the operator doesn't put in accurate numbers the numbers can be altered, simple as that. And no, the dyno doesn't have a barometric sensor. Anomalous as far as i'm concerned until i start seeing dyno's of other 4G's with MEVI and stock ECU churning out 200 WHP.
#29
Originally Posted by nismology
You're proving my point. You have more mods than him yet put down similar numbers. Think about that. Your numbers now are in-line with others that have 00VI, bolt-ons and tuning.
Originally Posted by nismology
Last time i checked his mod list there was nothing special there. Perhaps i missed something.
I would be interested in a re-dyno as well, maybe we can do something back to back next Spring. They moved this dyno to a new location so I wonder if that will change anything.
#32
Originally Posted by JSutter
joe, please tell me that you and zack didnt dyno in 3rd gear, that skews numbers. 4th gear is closest to a 1:1 ratio.
Best #s were done in 3rd but the SMT-6 final tests I did all in 4th. The 201 WHP was done in 3rd and i made 193~194 WHP in 4th several dyno pulls later. My 4th gear #s will always look bad cause they are done last and represent a worst case scernario.
#34
Originally Posted by JSutter
well then you really dont have a 200 whp car
#37
Originally Posted by zack342
Well i doubt you will, too many cheap 4th gen maxima oweners. How many guys have been modding there cars and have never dynoed?
#39
Originally Posted by JSutter
joe, please tell me that you and zack didnt dyno in 3rd gear, that skews numbers. 4th gear is closest to a 1:1 ratio.