8000RPM reliable shortblock
#82
Originally Posted by Alex_V
Yea but how many miles of daily driving can the AEBS take before its time for new rings/general rebuild?
The goal of my VQ32 is power and reliability.
Can porting improve the 3L heads? I know they don't flow as well as the 3.5L's but is it that huge of a difference? Does anybody have flow in CFM for the 2 heads?? or just OMG it wont work. Guess how many times thats been said on the org and it wasn't quite true....
~Alex
The goal of my VQ32 is power and reliability.
Can porting improve the 3L heads? I know they don't flow as well as the 3.5L's but is it that huge of a difference? Does anybody have flow in CFM for the 2 heads?? or just OMG it wont work. Guess how many times thats been said on the org and it wasn't quite true....
~Alex
The 3.5 heads are so much better than 3.0's its the difference between a ferrari and a yugo
#85
Originally Posted by 505max94se
exactly...
You can safely rev a stroked vq35 (AEBS 4.3L stroker kit, 90mm stroke) to 8400 rpm since it utilizes top notch forged parts...
You can safely rev a stroked vq35 (AEBS 4.3L stroker kit, 90mm stroke) to 8400 rpm since it utilizes top notch forged parts...
http://my350z.com/forum/showthread.php?t=224931
#86
Originally Posted by Alex_V
So then whats the best 3L head to use? I30? DEK? JDM only DET? Or the 3.5L heads with the 3L chamber Cosworth makes (probably out of my budget).
~Alex
~Alex
It seems like you're trying to reinvent the wheel, just for the sake of reinventing the wheel...
#87
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Posts: n/a
Originally Posted by Alex_V
So then whats the best 3L head to use? I30? DEK? JDM only DET? Or the 3.5L heads with the 3L chamber Cosworth makes (probably out of my budget).
~Alex
~Alex
#88
Originally Posted by Alex_V
So then whats the best 3L head to use? I30? DEK? JDM only DET? Or the 3.5L heads with the 3L chamber Cosworth makes (probably out of my budget).
~Alex
~Alex
My point comes down to money spent a 3.0 that beats a 3.5 in the power and powerband department will be much more costly.
prove that wrong and i will swap to a 3.0
#89
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Location: Montreal, Qc, Canada
Posts: 5,437
If you are willing to destroke for revs using all stock stuff the way to go is:
FULL VQ35 minus crank and rods
VQ30DET crank and rods
Although if you do this theres no reason NOT to boost it.
FULL VQ35 minus crank and rods
VQ30DET crank and rods
Although if you do this theres no reason NOT to boost it.
#90
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Posts: n/a
The only reason why I wanted 3L heads is because I have them already, and I just thought when pushing high rpm, the 11:1 comp would be more beneficial then flow. And with porting it could work well/ or better then VQ35 heads and low compression. I do realize I need high flow too, but not knowing a value of the 3.5L flow X CFM more I cant really make a good guess on that. (Edit- now I realize thats not true, and flow is more important. but if ported 3L is close enough, and with the ITB's it should flow great....)
If I was going full NA Id invest in some 13:1 or so CR pistons and go a little more extreme. But Im going to boost it eventually so thats not an option.
Could I reuse a VQ35 HG? They are metal right? Im thinking of building the VQ32, then porting the 3L heads, tuning, dyno, then put on the stock VQ35 heads, tune and dyno and see how it does.
With all my other parts I think it'd be interesting to say the least. And after I pull the VQ30 heads maybe Id send them to the guy at full race and get them cut in half and see what they look like.
While Im NA I plan on fabbing some long tube headers and a 00VI modded or a ITB setup all with meagsquirt. I just need to see what parts would be best for the upper rpm's Im going for.
~Alex
If I was going full NA Id invest in some 13:1 or so CR pistons and go a little more extreme. But Im going to boost it eventually so thats not an option.
Could I reuse a VQ35 HG? They are metal right? Im thinking of building the VQ32, then porting the 3L heads, tuning, dyno, then put on the stock VQ35 heads, tune and dyno and see how it does.
With all my other parts I think it'd be interesting to say the least. And after I pull the VQ30 heads maybe Id send them to the guy at full race and get them cut in half and see what they look like.
While Im NA I plan on fabbing some long tube headers and a 00VI modded or a ITB setup all with meagsquirt. I just need to see what parts would be best for the upper rpm's Im going for.
~Alex
#91
Originally Posted by Alex_V
The only reason why I wanted 3L heads is because I have them already, and I just thought when pushing high rpm, the 11:1 comp would be more beneficial then flow.
And with porting it could work well/ or better then VQ35 heads
Could I reuse a VQ35 HG?
#92
Why you guys gotta hate all the time? Everyone can research and determine on their own without being bashed. I agree that the 35 heads are superior in flow and detonation supression but there was a time when I wanted to stick with the 30's for ease of installation. But now I've realized. Does that mean I feel inclined to bash everyone that still wants to experiment for themselves?
#93
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Posts: n/a
Originally Posted by Alex_V
The only reason why I wanted 3L heads is because I have them already, and I just thought when pushing high rpm, the 11:1 comp would be more beneficial then flow.
#94
Guest
Posts: n/a
Right then I edited it. I know flow is more important then CR. With some porting and ITB's it should bump up the flow alot though. Got to consider the heads and intake manifold(s) as a package.
So you guys say the 3L heads don't flow great compared to the 3.5L heads. But they obviously out flow the VG and VE, and do the VQ30 heads have good potential to flow good as well or what? I mean the 3L can make some decent power as is unported but whats really holding back the flow? Can some one actually give a reason instead of they suck?
The plan so far is ported 3L heads, ebay 3.5L cams, and some super short ITB's. 3.2L bottom end.
The only variable is the heads. If the 3L heads can be ported/valves over sized to flow well then that would be the way to go. But would it still make decent power with a 9:1 comp 3.5L heads vs the 10.5:1+ of the 3L heads.
Cliffs: Whats the potential of the 3L heads vs the 3.5L heads, and how badly would power drop from CR going from ~11:1 to 9:1
~Alex
So you guys say the 3L heads don't flow great compared to the 3.5L heads. But they obviously out flow the VG and VE, and do the VQ30 heads have good potential to flow good as well or what? I mean the 3L can make some decent power as is unported but whats really holding back the flow? Can some one actually give a reason instead of they suck?
The plan so far is ported 3L heads, ebay 3.5L cams, and some super short ITB's. 3.2L bottom end.
The only variable is the heads. If the 3L heads can be ported/valves over sized to flow well then that would be the way to go. But would it still make decent power with a 9:1 comp 3.5L heads vs the 10.5:1+ of the 3L heads.
Cliffs: Whats the potential of the 3L heads vs the 3.5L heads, and how badly would power drop from CR going from ~11:1 to 9:1
~Alex
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