NSR Cams VS JDM Cams

[slowbra1]

On a stock engine with a TVS with basic mods E85 fuel, what is the difference in power between JDM super stock cams VS L&M and Billet Pro Shop NSR cams.

RPM 7K limit

 

[stkjock]

comparing a SR cam to a NSR cam is not really a apples to apples comparo.


A good cam & spring upgrade can net you 90-100 hp vs a NSR cam that will net you 40-50 hp. Of course those claims/estimates depend on boost levels and exhaust set up.


L&M makes some killer cam set ups

this car picked up nearly 100 whp (IIRC) while boost went down 3 psi with a set of custom grinds

https://www.youtube.com/watch?v=xvWSGcVhKwc

https://www.youtube.com/watch?v=xvWSGcVhKwc

 

[Vi_king500]

I wanna go L&M NSR cams. Just need that $$$

 

[slowbra1]

comparing a SR cam to a NSR cam is not really a apples to apples comparo.


A good cam & spring upgrade can net you 90-100 hp vs a NSR cam that will net you 40-50 hp. Of course those claims/estimates depend on boost levels and exhaust set up.


L&M makes some killer cam set ups

this car picked up nearly 100 whp (IIRC) while boost went down 3 psi with a set of custom grinds

https://www.youtube.com/watch?v=xvWSGcVhKwc

https://www.youtube.com/watch?v=xvWSGcVhKwc

Good gains Im seeing 20 PSI currently, I want to do this upgrade.

 

[Phantomhalo]

comparing a SR cam to a NSR cam is not really a apples to apples comparo.


A good cam & spring upgrade can net you 90-100 hp vs a NSR cam that will net you 40-50 hp. Of course those claims/estimates depend on boost levels and exhaust set up.


L&M makes some killer cam set ups

this car picked up nearly 100 whp (IIRC) while boost went down 3 psi with a set of custom grinds

https://www.youtube.com/watch?v=xvWSGcVhKwc

https://www.youtube.com/watch?v=xvWSGcVhKwc

I'd like to see the dyno graph of both to see where the power is being applied between the two. Those are some great gains!

 

[stkjock]

I don't have access to Dyno graphs. I'll see if I can find them on the site as he was a member here

 

[rdsnk46]

I'm going to run the JDM SS cams w/springs, I got an incredible deal on a built short block.

Just trying to find a set of heads to port before I put the motor together.

 

[JimIII@jdm]

Replacing your factory cams for ones with more lift/duration while reusing factory valve springs is going to create more risk of valve float and effect overall efficiency of the engine. I understand everyone wants a cheap and simple alternative for any upgrade but this is not the area to skimp. The factory valve springs NEW are about half the rated seat pressure of the PAC springs we include in our cam package. When you have 15+ psi of boost pressure pushing on the back of the valve the extra spring pressure is going to allow the valve to return to the seat with out issue. With the weaker stock springs and aftermarket cams the valves are going to open further and have more difficult time returning to the seat to close with what's known floating of the valves. When this happens your bringing heat into the engine and dumping boost out of the exhaust.

Whether or not you buy our cams or someone elses I would highly recommend replacing the springs for ones with higher seat pressure. Also 4v cam installs should be performed by a professional.

 

[slowbra1]

Replacing your factory cams for ones with more lift/duration while reusing factory valve springs is going to create more risk of valve float and effect overall efficiency of the engine. I understand everyone wants a cheap and simple alternative for any upgrade but this is not the area to skimp. The factory valve springs NEW are about half the rated seat pressure of the PAC springs we include in our cam package. When you have 15+ psi of boost pressure pushing on the back of the valve the extra spring pressure is going to allow the valve to return to the seat with out issue. With the weaker stock springs and aftermarket cams the valves are going to open further and have more difficult time returning to the seat to close with what's known floating of the valves. When this happens your bringing heat into the engine and dumping boost out of the exhaust.

Whether or not you buy our cams or someone elses I would highly recommend replacing the springs for ones with higher seat pressure. Also 4v cam installs should be performed by a professional.

Thanks Jim, how about 1800.00 shipped

 

[JimIII@jdm]

Thanks Jim, how about 1800.00 shipped

No sorry we cant do that but we will give any SVTP member a 5% discount on the kit price. Give us a call 732-780-0770