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 ft/lb Torqe
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1mean16vSe-r



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17 posts
200SX SE-r
Douglassville pa.
2-20-2008

  ft/lb Torqe 9:30 AM 4/5/2008

I drive a '98 200Sx SR powered. I have plenty of top end power and i am trying to widen the power band and get some low end as well. Any suggestions on wat i can do to increase torque without forced induction, i want to keep my motor N/A- im old school i guess haha...
nametakennow
Sentra Moderator



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8877 posts
'01 Sentra SE w/pp
Atlanta GA
8-24-2002

 «  7:16 PM 4/6/2008

There's really not much outside of boring it out that will give you much increase in low-end power.

What mods do you have now?


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Nismo77



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SE-R
La Mirada CA
5-31-2006

 « Re: (nametakennow) 6:56 PM 4/9/2008

The only way to increase torque on a N/A is to stroke it...other than that an engine will only put out what it was designed to do according to the rod ratio... you could have a custom header made that could help with th low end but that will cost you some money..


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1mean16vSe-r



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17 posts
200SX SE-r
Douglassville pa.
2-20-2008

 « Re: (Nismo77) 10:49 AM 4/19/2008

How much would it cost me to boar my engine
nametakennow
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8877 posts
'01 Sentra SE w/pp
Atlanta GA
8-24-2002

 «  5:29 PM 4/20/2008

The JWT stroker kit (which is the only one I've seen) runs ~$2k, and the labor would be very intensive. I suspect the whole shibang would be $3kish
JeremyNissan

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17 posts
99 SEL SR20VE-T
Salt Lake City Utah
7-6-2008

 « Re: ft/lb Torqe (1mean16vSe-r) 9:26 PM 7/8/2008

advance the timing and get a lightweight flywheel with underdrive pulleys. That will free up around 15lb ft on the low end.

I think a good tune will give the best results. But that will get you started and you will feel the diff right away.
Q45tech
Q45 Guru

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11937 posts
1990 Q45 319,000 miles
Marietta , Georgia
4-30-2002

 « Re: ft/lb Torqe (JeremyNissan) 12:02 PM 7/14/2008

Torque is a function of displacement and compression ratio. BMEP and it's negative IMEP or frictional loss create the net torque output.


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