What is a good n/a CAM
10-11-2007, 06:47 PM
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What is a good n/a CAM
So I've decided I wont be doing any type of FI on my 350z. Just too much work, time, and money. Three things I don't have.
So basically I'm just going to buy an extra set of heads and build them, drop them in and tune the car. I'm looking for a set of cams that will be streetable and make a good combination for the n/a motor.
Anyone have any suggestions on either the exact cam to get or what loop and duration I should be looking for? I don't know a whole lot about cams, so I'm relying on the information here.
So basically I'm just going to buy an extra set of heads and build them, drop them in and tune the car. I'm looking for a set of cams that will be streetable and make a good combination for the n/a motor.
Anyone have any suggestions on either the exact cam to get or what loop and duration I should be looking for? I don't know a whole lot about cams, so I'm relying on the information here.
10-11-2007, 06:53 PM
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Thanks for the quick reply
Do you have any personal experience with these? i'm looking for some one who has a set of the cams on their 350z to tell me the pro's/con's (if any)
I'm assuming you are talking about these
http://www.jscspeed.com/350z/engine/bc_cams.htm
I like Brian Crower products a lot, so I'm assuming those cams are a great product, but I'd like to know how much greater they are over stock, from some one with them.
Do you have any personal experience with these? i'm looking for some one who has a set of the cams on their 350z to tell me the pro's/con's (if any)
I'm assuming you are talking about these
http://www.jscspeed.com/350z/engine/bc_cams.htm
I like Brian Crower products a lot, so I'm assuming those cams are a great product, but I'd like to know how much greater they are over stock, from some one with them.
10-11-2007, 06:58 PM
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Well I am going to say Tomei 272 Intake & 11.3 mm lift and 272 exhaust & 11 mm lift but I am prejudice because I have them. Top end power is very good on these cams.
10-11-2007, 06:58 PM
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Originally Posted by USN HM 350Z
heads + cams + utec(or what ever tuning device you choose) = over half way moneywise to FI. Factor in the exhaust, intake, headers, pulleys that will soon follow, you should just go with a turbonetics kit and be done with it.
I like the JWT cams
I like the JWT cams
I'm not looking to depreciate the value of my Z that much [edit: don't get me wrong, FI 350z would be so wicked]. I'm really not looking forward to chopping the front bumper for the front mount to be honest. I already did that on my subaru and it really hurt me on the trade in after I sold all my aftermarket parts (including the big front mount).
So I had this huge gap between my bumper and frame.
Yeah dont want to do that this time. If I was seriously going to go FI, I'd piece together my own centrifugal supercharger kit and run no IC with meth injection.
Last edited by page04Z; 10-11-2007 at 07:01 PM.
10-11-2007, 06:59 PM
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Originally Posted by rednezz
Well I am going to say Tomei 272 Intake & 11.3 mm lift and 272 exhaust & 11 mm lift but I am prejudice because I have them. Top end power is very good on these cams but need to rev higher than 6600 rpm.
Yeah thanks for the reply, tomei makes amazing products but I dont' think I'll have the bottom end to really support those cams.
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10-11-2007, 07:04 PM
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Originally Posted by page04Z
Yeah thanks for the reply, tomei makes amazing products but I dont' think I'll have the bottom end to really support those cams.
I think you might be surprised...I am not really running crazy compression like the Tomei car @ 13:1 and the power is still really good. You do lose some power down around idle till about 3000 rpm but after that it really starts to pull especially after 5000 rpm. I will have some dyno numbers Monday afternoon after my dyno tune.
10-11-2007, 07:07 PM
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Originally Posted by rednezz
I think you might be surprised...I am not really running crazy compression like the Tomei car @ 13:1 and the power is still really good. You do lose some power down around idle till about 3000 rpm but after that it really starts to pull especially after 5000 rpm. I will have some dyno numbers Monday afternoon after my dyno tune.
Great man I would appreciate that, after the headwork I plan on taking my revlimit to about 7200 (we'll see what the set-in-stone number is once I see what power I make on the dyno), so I can shift at something a little higher than 6200/6400.
10-12-2007, 05:49 AM
#10
Cams are not interchangable between revups and non-revups.
For non-revups, the tomei 268 is talked about a lot with good results...
For revup's, the JWT S7 262 is popular. I need to check out the bc and nismo cams...
For non-revups, the tomei 268 is talked about a lot with good results...
For revup's, the JWT S7 262 is popular. I need to check out the bc and nismo cams...
Last edited by gothchick; 10-12-2007 at 05:57 AM.
10-12-2007, 12:13 PM
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Originally Posted by gothchick
Cams are not interchangable between revups and non-revups.
For non-revups, the tomei 268 is talked about a lot with good results...
For revup's, the JWT S7 262 is popular. I need to check out the bc and nismo cams...
For non-revups, the tomei 268 is talked about a lot with good results...
For revup's, the JWT S7 262 is popular. I need to check out the bc and nismo cams...
When I'm done with my headwork, hopefully its the super rev up VQ
No, just kidding. I'm not really looking to rev much higher than 6500 (due to bottom end), but we'll see what the curve looks like once she gets on the dyno.
Hopefully $4000 in headwork will make for a very nice powerband after a utec dyno tune.
10-12-2007, 12:16 PM
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Originally Posted by gothchick
Cams are not interchangable between revups and non-revups.
For non-revups, the tomei 268 is talked about a lot with good results...
For revup's, the JWT S7 262 is popular. I need to check out the bc and nismo cams...
For non-revups, the tomei 268 is talked about a lot with good results...
For revup's, the JWT S7 262 is popular. I need to check out the bc and nismo cams...
Also, when the cams say "Fits 03-06 350z" then that is actually not true because they are either for the nonrev or revup engine? So I have to be careful what vendors I buy cams from
God damnit everything on subaru's was interchangeable
10-15-2007, 05:29 PM
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Originally Posted by page04Z
Ok thank you for the insight before I made a purchasing mistake. I have the non rev up VQ.
When I'm done with my headwork, hopefully its the super rev up VQ
No, just kidding. I'm not really looking to rev much higher than 6500 (due to bottom end), but we'll see what the curve looks like once she gets on the dyno.
Hopefully $4000 in headwork will make for a very nice powerband after a utec dyno tune.
When I'm done with my headwork, hopefully its the super rev up VQ
No, just kidding. I'm not really looking to rev much higher than 6500 (due to bottom end), but we'll see what the curve looks like once she gets on the dyno.
Hopefully $4000 in headwork will make for a very nice powerband after a utec dyno tune.
$4 THOUSAND in head work? Is the machinist lining them with gold?
If you are retaining a stock bottom end you are limited
NISMO R Spec: http://www.z1auto.com/prodmore.asp?m...ine&prodid=917
Tomei 256 (more mid range oriented) or 264 ( a bit higher end) would be the ones to get: http://www.z1auto.com/prodmore.asp?m...ine&prodid=521
The higher Tomei, BC, etc etc will all need built bottom ends to support where they want to rev to.
If this is a revup, you are extremely limited, to the point where I might consider just waiting to see what else is released in the future
And make sure you add a UTEC (or better) into the mix as well, and take the time to carefully select your header, as it's these combo of parts that will make it work well, or not
10-15-2007, 06:42 PM
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Originally Posted by Z1 Performance
Built heads with a nearly stock redline?
$4 THOUSAND in head work? Is the machinist lining them with gold?
If you are retaining a stock bottom end you are limited
NISMO R Spec: http://www.z1auto.com/prodmore.asp?m...ine&prodid=917
Tomei 256 (more mid range oriented) or 264 ( a bit higher end) would be the ones to get: http://www.z1auto.com/prodmore.asp?m...ine&prodid=521
The higher Tomei, BC, etc etc will all need built bottom ends to support where they want to rev to.
If this is a revup, you are extremely limited, to the point where I might consider just waiting to see what else is released in the future
And make sure you add a UTEC (or better) into the mix as well, and take the time to carefully select your header, as it's these combo of parts that will make it work well, or not
$4 THOUSAND in head work? Is the machinist lining them with gold?
If you are retaining a stock bottom end you are limited
NISMO R Spec: http://www.z1auto.com/prodmore.asp?m...ine&prodid=917
Tomei 256 (more mid range oriented) or 264 ( a bit higher end) would be the ones to get: http://www.z1auto.com/prodmore.asp?m...ine&prodid=521
The higher Tomei, BC, etc etc will all need built bottom ends to support where they want to rev to.
If this is a revup, you are extremely limited, to the point where I might consider just waiting to see what else is released in the future
And make sure you add a UTEC (or better) into the mix as well, and take the time to carefully select your header, as it's these combo of parts that will make it work well, or not
Well I will eventually build the bottom end, just not now.
Anyway I exaggerated the price... the port/polish and valve job will cost less than 1k, cams and valves will be like $1400... so it will cost about $2500.
10-15-2007, 07:08 PM
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Brian crower seems to always have one of the best products out... I believe MRC or something just had a dyno sheet that proved that just by switching from some JWT cams they were running to BC cams, they gained a few more horses... of course it was on a forced induction engine, but still... the same Research goes into BC's N/A stuff too.
10-15-2007, 07:49 PM
#19
I heard these a pretty good: 
GTM Cams: https://my350z.com/forum/product-announcements/268804-gt-motorsports-turbo-and-na-sc-spec-camshaft-dyno-testing-results.html
Stg2 Turbo, 272 degrees @ .012”, 232 degrees @.050” , 11.00mm Valve lift intake and exhaust
Stg3 Turbo, 288 degrees @ .012”, 245 degrees @ .050”, 11.50mm Valve lift intake and exhaust
Stg2 N/A, 282/272 degrees @ .012”, 240/232 degrees @ .050”, 11.50mm/11.00mm Valve lift (intake/exhaust)
Stg3 N/A, 302/292 degrees @ .012”, 256/250 degrees @ .050”, 11.50mm/11.00mm Valve lift (intake/exhaust)
-George
GT Motorsports
GTM Cams: https://my350z.com/forum/product-announcements/268804-gt-motorsports-turbo-and-na-sc-spec-camshaft-dyno-testing-results.html
Stg2 Turbo, 272 degrees @ .012”, 232 degrees @.050” , 11.00mm Valve lift intake and exhaust
Stg3 Turbo, 288 degrees @ .012”, 245 degrees @ .050”, 11.50mm Valve lift intake and exhaust
Stg2 N/A, 282/272 degrees @ .012”, 240/232 degrees @ .050”, 11.50mm/11.00mm Valve lift (intake/exhaust)
Stg3 N/A, 302/292 degrees @ .012”, 256/250 degrees @ .050”, 11.50mm/11.00mm Valve lift (intake/exhaust)
-George
GT Motorsports
10-15-2007, 07:56 PM
#20
Originally Posted by page04Z
Also, when the cams say "Fits 03-06 350z" then that is actually not true because they are either for the nonrev or revup engine? So I have to be careful what vendors I buy cams from
'05 35th anniversary 6mt
'05 6mt
'06 6mt
everything else is non-revup or hr.