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Thread: *Help* Low power SR20VE with N1's

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Posts: 21-30 of 42
2010-08-23 16:46:28
#21
Thanks again guy's

I went through my MSS again everything is spot on, Used the Jgy guide, I can hear and feel when the cams activate at each RPM (When I staged them on the way home)

When the car steps onto the high lifts you can really hear it



Picture you requested




Keep the info coming
2010-08-23 16:59:03
#22
At what rpm you switch cams?

Also i would go with different MAF... DE, VE, N60, etc. Z32 isnt the right one for N/A.
2010-08-23 18:45:43
#23
At what rpm you switch cams?


5000Rpm
2010-08-23 18:50:55
#24
Lose the Magnecore wires, they are the worse wires out there. You are probably getting a lot misfire. The Magnecore's have the worst boot design. Replace them with the factory wires and get new cap,rotor, and spark plugs, then head back to the dyno.

A weak ignition system is where you can easily lose horse power. It's the first thing I check for on a low performing engine.
2010-08-23 20:06:57
#25
Originally Posted by 5speed
Lose the Magnecore wires, they are the worse wires out there. You are probably getting a lot misfire. The Magnecore's have the worst boot design. Replace them with the factory wires and get new cap,rotor, and spark plugs, then head back to the dyno.

A weak ignition system is where you can easily lose horse power. It's the first thing I check for on a low performing engine.


@ahoy pinky!
@5speed the magnecores are highly rated here in South Africa, the problem is factory leads cost almost half the price of a Ve motor here at the Agents
2010-08-23 20:08:30
#26
Okay this may sound weird but...are you SURE thats YOUR dyno sheet?? First off it shows that your power band is REALLY smooth, too smooth for a VE with the cams activating at the same time. It also shows power loss at a very low RPM. N1s being a top end cam you should getting power up until ~7k RPMS. Also, if in fact your cams ARE activating at 5k, there is no way that could be your dyno sheet. There would be a spike/loss in your power. And to top it off that torque is pretty unheard of for that setup. I don't think we should diagnose any further until it is confirmed that is in fact your sheet.

you get what I'm saying..?
2010-08-23 20:58:14
#27
Originally Posted by javcrodgz
Okay this may sound weird but...are you SURE thats YOUR dyno sheet?? First off it shows that your power band is REALLY smooth, too smooth for a VE with the cams activating at the same time. It also shows power loss at a very low RPM. N1s being a top end cam you should getting power up until ~7k RPMS. Also, if in fact your cams ARE activating at 5k, there is no way that could be your dyno sheet. There would be a spike/loss in your power. And to top it off that torque is pretty unheard of for that setup. I don't think we should diagnose any further until it is confirmed that is in fact your sheet.

you get what I'm saying..?


The torque numbers are in Newton Meters. It should be closer to 200nm.

@ IRI OEM plugwires are like R500 from gspec.
2010-08-23 21:10:42
#28
^^^^OHHH okay, so thats about 128 Ft lbs. of torque right?
2010-08-23 21:11:51
#29
yea it comes out to be about 128.3 ft lbs tq if you convert from nm..

what type of dyno was the run takin on, was that your only run or just your best run? what was the smoothing? correction factor?
2010-08-23 22:32:20
#30
Originally Posted by javcrodgz
Okay this may sound weird but...are you SURE thats YOUR dyno sheet?? First off it shows that your power band is REALLY smooth, too smooth for a VE with the cams activating at the same time. It also shows power loss at a very low RPM. N1s being a top end cam you should getting power up until ~7k RPMS. Also, if in fact your cams ARE activating at 5k, there is no way that could be your dyno sheet. There would be a spike/loss in your power. And to top it off that torque is pretty unheard of for that setup. I don't think we should diagnose any further until it is confirmed that is in fact your sheet.

you get what I'm saying..?


Not true at all. Judt because there both swithced at the same rpm does not mean it can't be smooth. I can produce a few graphs to show you examples. Also 170 is hardly unheard of with out cams.. come on man. 180 are easily reashed on 2.0 cams by many
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