BPS cams

Kenneth

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IMG_0265.jpg

Here is the dyno sheet showing before and after pulls with adding the BPS NSR cams.


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Catmonkey

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Looks like a good choice with respectable gains in the right places. What sort of vacuum do you have at hot idle?
 

Kenneth

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Not sure on vacuum.
Using stock boost bypass without any issues.


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SCGallo2

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Nice gains! If you don't mind me asking, what was your total investment in parts, labor, and tuning for these cams?
 

Klaus

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Nice curves for both HP and Torque. I did BPS bullets but worked the heads with springs and retainers too. Not as lumpy as I hoped but drivability has been great.
 

merkyworks

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Just to make sure I'm understanding this all correctly.
-Before BPS NSR cams dyno numbers were 606 whp / 640 wtq with - Gen2, 2.4 pulley, 127mm intake ,67mm throttle body, LT's, O/R H-pipe, fuel mods and tune etc.
-After BPS NSR cams dyno numbers were 662 whp / 681 wtq with same parts as above.

If so those are some nice gains, 56 whp / 41 wtq is very respectable.

Total side note can anyone comment on comparisons numbers or some sort of ratio factor on a Mustang dyno Vs DynoJet? Curious cause with the mods before cam install I would expect a little higher HP number than 606 whp. I understand things like attitude, temp, humidity and DA all play a roll and at the end of the day dyno numbers doesn't mean sh*t when racing but just curious.
 

Kenneth

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You are correct
Just wanted a before and after dyno to see true gains, when looking for cam choice I couldn't find a dyno sheet for the BPS cams.
Tuner is under the impression his Mustang dyno reads roughly 100hp less than a dynojet.
He has a dynojet he will be installing at the new shop but won't be up and running until after New Year.
 

CD07GT500

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More TQ than power? Something seems off. Glad your tuner is upgrading to a DJ.
 

Catmonkey

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I don't think the torque looks bad in relation to hp, because I don't think it reached peak power in that configuration. Appears to me the car would continue to make power well beyond the pull, but you're running stock valve springs that can only take so much rpm with more lift and duration, not to mention the stock lower end's limitations. The 2.3 TVS is on the downside of it's efficiency range at your peak and will only continue farther up the rpm band. I'll bet boost is starting to drop off at the peak. With a stock lower end, I think it's perfect.
 

CD07GT500

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It's just typical MD issues. High/Low torque and power readings are par for the course.
 
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CD07GT500

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Highlighted below is the exact combo Kenneth has minus long tubes before the cams. That is what you will see from every similar combo with a stock lower.
gen 2.JPG
 
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SCGallo2

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Cams were $1200, shop was 12 hrs. @$100/hr. Tuning was $600

Cool, thanks for sharing. I am at the limit of my current fuel system now, so I would need to spring for a fuel system as well. My priorities are driveability, performance, and sound... in that order. No doubt, if I ever have to go inside the engine, I'll install at least 13/14 GT500 cams or something like yours that don't give up too much on the bottom.
 

Kenneth

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Well
After New Year my tuner will have his brand new dyno jet dyno set up and we will strap the car down to see the difference between the two


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CD07GT500

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After New Year my tuner will have his brand new dyno jet dyno set up and we will strap the car down to see the difference between the two


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You will be pleased.
 

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