LSJ T6061 Aluminum Crankshaft Pulley
09-27-2007, 09:37 PM
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LSJ T6061 Aluminum Crankshaft Pulley
We're considering going into production with these units. Stock diameter, much lighter. Exact specifications to be posted shortly. We're just curious about the kind of demand there might be for such a product for the LSJ.
Thanks,
JBP
Thanks,
JBP
09-27-2007, 09:42 PM
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yeah i'd be interested..but u need better US vendors.....since you're just a distributer now.....or you need to tell CrateEngineDepot to feature your products on their site since they are a vendor.......Also, hows the 750hp build coming its been some time since an update on your site?........
Last edited by lnf08ecotec; 09-28-2007 at 07:05 AM.
09-27-2007, 10:10 PM
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Not too sure on pricing yet, we'll hit up with more information. Just tyring to get a little bit more information about the demand. I figure there is a demand since there's nothing out there.
Having a lighter pulley, stock diam. isn't going to damage anything.
Having a lighter pulley, stock diam. isn't going to damage anything.
09-28-2007, 08:06 AM
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Beck the crank pulley in the cobalt is not a harmonic balancer. If it were a harmonic balancer you'd have issues with swapping it out, but because it is not, there shouldnt be any problems.
09-28-2007, 08:12 AM
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Someone already has a crank pulley for sale. Its like wayyyyyyyyyyyyyy overpriced for like 400 or something ridiculous like that. Nice to see people are still using NX!!!
09-28-2007, 08:38 AM
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id buy one but what well the gain be ?
09-28-2007, 09:09 AM
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Thats probably the one for the L61. To my knowledge there isn't one for the LSJ.
The gain will be notice from the reduced inertia that the engine must overcome from a stand-still; This increases hole-shot performance. An exact gain at this time is speculative without a dyno test.
The gain will be notice from the reduced inertia that the engine must overcome from a stand-still; This increases hole-shot performance. An exact gain at this time is speculative without a dyno test.
09-28-2007, 09:16 AM
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True. The pulley will be extensively tested before release. With complete dynos and a trial test run on my SS/SC. Just trying to see what interest this drums up.
09-28-2007, 09:22 AM
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I'd Image it to help a lot... especially for these guys running really small pulleys. If there are some good gains out there... yeah... I'd be interested. BUT, it's like everyone said... if the price is right.
If it's like the GM one and costs $500+... I wouldn't see too many people buying one. Probably nobody actually! Haha...
If it's like the GM one and costs $500+... I wouldn't see too many people buying one. Probably nobody actually! Haha...
09-28-2007, 09:24 AM
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I would be interested for sure. After seeing how it worked on a test model will help me confirm for sure if it would be worth it or not. So really I think the following aspects would have to be touched.
1. Tested to make sure it is a safe reliable mod.
2. What kind of gains?
3. Price
1. Tested to make sure it is a safe reliable mod.
2. What kind of gains?
3. Price
09-28-2007, 09:27 AM
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if its very inexpensive and makes good gains which idk how it would, maybe its a possibility, but not sure, and is probabaly also a pain in the ass times 782348293497 to change it
09-28-2007, 09:35 AM
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Some info I found:
underdrive crank pulleys on average can provide gains of 5 to 12 HP and 4 to 8 lbs.-ft. on normally aspirated engines and 8 to 16 HP and 8 to 18 lbs.-ft. on forced induction engines. Higher gains are possible. For example, a Nissan 300ZX twin-turbo saw gains as high as 37 HP and 45 lbs.- ft. on the dyno just by replacing the stock crank pulley
Power gains are obtained in two ways. First, and most important, is the weight loss. An average of 2.7 HP is gained from every pound lost off the crank shaft. 85% of our gains are from weight loss.
The rest of the gains are from underdriving, which accounts for about 15% of the total gains. We do not push underdriving beyond 20% for two important reasons. The main reason is to keep charging systems, air conditioning, power steering, and water pumps moving fast enough for every day driving. Second, not much horsepower is gained from extreme underdriving. In most applications all of the underdriving is done with the crank pulley, not the accessory pulleys. This is done so maximum weight loss can be achieved at the crank where most of the horsepower gains are found.
underdrive crank pulleys on average can provide gains of 5 to 12 HP and 4 to 8 lbs.-ft. on normally aspirated engines and 8 to 16 HP and 8 to 18 lbs.-ft. on forced induction engines. Higher gains are possible. For example, a Nissan 300ZX twin-turbo saw gains as high as 37 HP and 45 lbs.- ft. on the dyno just by replacing the stock crank pulley
Power gains are obtained in two ways. First, and most important, is the weight loss. An average of 2.7 HP is gained from every pound lost off the crank shaft. 85% of our gains are from weight loss.
The rest of the gains are from underdriving, which accounts for about 15% of the total gains. We do not push underdriving beyond 20% for two important reasons. The main reason is to keep charging systems, air conditioning, power steering, and water pumps moving fast enough for every day driving. Second, not much horsepower is gained from extreme underdriving. In most applications all of the underdriving is done with the crank pulley, not the accessory pulleys. This is done so maximum weight loss can be achieved at the crank where most of the horsepower gains are found.
09-29-2007, 11:17 PM
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I've been crunching some numbers, we can make a run of these pulleys for a decent price. Just have to factor in material costs and we can come up with a MSRP price for our dealers soon. But yes, there's some decent gains to be had from this. Estimations around 7-9HP. Good mod for those who've done everything else....
09-29-2007, 11:33 PM
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I've been crunching some numbers, we can make a run of these pulleys for a decent price. Just have to factor in material costs and we can come up with a MSRP price for our dealers soon. But yes, there's some decent gains to be had from this. Estimations around 7-9HP. Good mod for those who've done everything else....
09-30-2007, 06:18 PM
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yeah i'd be interested..but u need better US vendors.....since you're just a distributer now.....or you need to tell CrateEngineDepot to feature your products on their site since they are a vendor.......Also, hows the 750hp build coming its been some time since an update on your site?........
send us an email for info.
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