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my turn
vq non rev
96mm cosworth 11:1 forged pistons eagle Hbeam forged rods ARP main studs HR head gaskets and head bolts ACL race series bearings BC stage 2 cams ferrea 6000 series stock sized valves supertech dual valve springs MD 1/2" plen spacer worked nonrev lower plen worked upper plen, specifically gasket matched to the tb nismo Rtune headers megan v2 test pipes (considering getting different ones) MD resonated xyz Ypipe DMH electronic cutout stock midpipe and muffler mishimoto radiator edge racing 3200 stall torque converter (im auto) revup oil pump ATI dampner pulley pathfinder cooling mod water jackets machined rotating assembly balanced headwork by headgames OEM injectors cleaned headers and tp jet hot coated all intake pieces gasket matched polished crank i think that about covers it will get a tune and then depending on where my peak power is will get either 3.7, 3.9, or 4.08 final drive gear ratio. http://i3.photobucket.com/albums/y73...l/CIMG1227.jpg http://i3.photobucket.com/albums/y73...l/CIMG1223.jpg http://i3.photobucket.com/albums/y73...l/CIMG1221.jpg http://i3.photobucket.com/albums/y73...l/CIMG1219.jpg http://i3.photobucket.com/albums/y73...l/CIMG1218.jpg http://i3.photobucket.com/albums/y73...l/CIMG1225.jpg http://i3.photobucket.com/albums/y73...l/CIMG1226.jpg |
Originally Posted by mgrotel
(Post 9272233)
http://i3.photobucket.com/albums/y73...l/CIMG1227.jpg
http://i3.photobucket.com/albums/y73...l/CIMG1223.jpg http://i3.photobucket.com/albums/y73...l/CIMG1221.jpg http://i3.photobucket.com/albums/y73...l/CIMG1219.jpg http://i3.photobucket.com/albums/y73...l/CIMG1218.jpg http://i3.photobucket.com/albums/y73...l/CIMG1225.jpg http://i3.photobucket.com/albums/y73...l/CIMG1226.jpg |
just had the machine shop do it while they had the block
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that looks pretty... good luck w your project!
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thanks!
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lemme guess......wiseco pistons, eagle rods, bc 264s?
*your motor has a boner :) teehee |
Originally Posted by the_coupe
(Post 9273518)
lemme guess......wiseco pistons, eagle rods, bc 264s?
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When you get done with piks please post full parts list thx
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Originally Posted by 2004Black350z
(Post 9273603)
When you get done with piks please post full parts list thx
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ahh now you add pix! lol the pistons look hella diff from my CPs......atleast they were smart and put an arrow on them! can you take a pic of both sides of the piston skirt for me??
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I'll see if I have one already, but pistons are in the block as of now. Pretty sure there is a set of 11:1 cosworths in the classified section, he might be able to take pics for you
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well, not much of a skirt to it lol....im just curious as to how the side notched for the squirters is compared to the opposite side.
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I would highly rec dumping the megan test pipes. Im not going to say ART pipes though lol. I dont believe they have had great success with aftermarket headers. I say maybe find some 2.5" test pipes.
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Originally Posted by 2004Black350z
(Post 9273783)
I would highly rec dumping the megan test pipes. Im not going to say ART pipes though lol. I dont believe they have had great success with aftermarket headers. I say maybe find some 2.5" test pipes.
Rtune header primaries are stepped, so my thinking is that it wouldn't hurt to have the entire exh get gradually bigger at each component as well |
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I want Headgames to port and polish my Cosworth. They're only about 30 mins from me. If you're in the area, you're more than welcome to come check out my car.
Have you dropped off your heads yet? How do you like them? Heard great things. |
Wish I was in the area, I woulda saved a ton on shipping and it would be cool to see your car, but I'm in Utah, damn elevation! Lol
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Any idea roughly how much HP I might see with better test pipes? I'm willing to give up a few HP to have the resonators and it be quieter
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...says the guy with the electronic cutout. With stock mid pipe and muffler, you really shouldn't be too loud at all. I wouldn't sweat it. Keep it as is.
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Headgames does extremely good work. Expect those heads to flow in the 330+cfm range.
Kaczyou must be an hor or two away from me. I know we work fairly close by. |
Originally Posted by kacz07
(Post 9278830)
...says the guy with the electronic cutout. With stock mid pipe and muffler, you really shouldn't be too loud at all. I wouldn't sweat it. Keep it as is.
basically, the car is going to be loud with the cutout open, thats just fact. but with it open, performance is top priority and how the car sounds is basically last on my priority list. its opposite with the cutout closed, performance is not at the top of my list, but sound is more important. i dont want to scare my neighbors half to death everytime i start my car, but at the same time, as im tracking around miller motorsports park i could care less how loud and raspy it is, if that makes sense. the cutout was my solution to keeping a quiet, classy sounding car without sacrificing a lot of performance. but if the megan test pipes will hurt performance quite a bit or will limit where i make peak hp, then i will get something else. |
Originally Posted by tuko316
(Post 9278930)
Headgames does extremely good work. Expect those heads to flow in the 330+cfm range.
Kaczyou must be an hor or two away from me. I know we work fairly close by. |
Iirc they flow btw 270 and 280 on the intake and 220-230 on the exhaust.
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plan to get new final drive ratio depending on where my peak power is after the tune
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what do you guys think of these test pipes? think i should get these over the resonated megans that i already have based on what im looking for?
http://www.z1motorsports.com/350_g35...oducts_id=3373 |
what do you guys think of the R2C intakes? considering one because of cams, head work, and flowing exhaust
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So my heads should be here soon, is there a book or reference site that details engine assembly and all torque specs? I'll need something since I've never put a vq together before, thanks
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no site to download the esm? i can help with what i can.
whats the nismo piece?? |
when you say esm, do you mean the factory service manual? i think i know of a place to get that.
the nismo parts are the R-tune headers with the date stamped on them the day they were made |
anyone? is the factory service manual the literature i want to throw the heads and timing stuff onto the block?
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Originally Posted by mgrotel
(Post 9280479)
what do you guys think of the R2C intakes? considering one because of cams, head work, and flowing exhaust
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Originally Posted by KA24DE
(Post 9299991)
Rubbish.
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Originally Posted by mgrotel
(Post 9336945)
damnit man, now you got me all stressing out about finding the best intake manifold for my build. i searched and searched and it seems all i can find is vendors bickering like 2 year olds or just a bunch of differeing opinions. anyone have a recommendation for my build? i was planning to use my worked lower non-rev with a 1/2 inch spacer. but if there is a better option, ill see if i can fit it into my budget. thanks
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Originally Posted by mgrotel
(Post 9336945)
damnit man, now you got me all stressing out about finding the best intake manifold for my build. i searched and searched and it seems all i can find is vendors bickering like 2 year olds or just a bunch of differeing opinions. anyone have a recommendation for my build? i was planning to use my worked lower non-rev with a 1/2 inch spacer. but if there is a better option, ill see if i can fit it into my budget. thanks
Pm me your email I'll send you the dyno sheet this is on a non-rev 5at so gains should be more since you are 6mt. I'm using the stock intake on my G35. |
Originally Posted by denchan350gt
(Post 9337921)
Did you modify the intake piece the lower plenum sits on? I gained almost 15hp in the top end over a 5/16 spacer w/stock non rev plenum from 250 to 264hp. I just added a 1/2 spacer to my ported lower plenum pieces.
Pm me your email I'll send you the dyno sheet this is on a non-rev 5at so gains should be more since you are 6mt. I'm using the stock intake on my G35. http://i3.photobucket.com/albums/y73...s/IMG_9204.jpg the ports are smoothed out and it is gasket matched. and i am also an auto G so should be the same. so, you ported the lower plen too? im guessing that is where you got most of your gain from. ill send a pm |
Intakes... this engine's intake system left so much on the table its should almost be embarassing to the system's designers. In year over year versions they got substantially better, but it left those of us with the Mk 1 versions looking for more.
I look at it like this, -Easy and cheap good performer, Basic DE lower (mod or unmodified) + 5/16 or 1/2 spacer -Reasonable priced and possibly best and easiest bolt up overall performance, MREV2 with spacer -Best top end, unsure, the mod'ed upper intake on the SG Motorsports car shows the Rev-up plenum can make more power on top than most others, but will likely have lower under the curve numbers. |
Originally Posted by mgrotel
(Post 9337999)
are you talking about the collector on the right in this picture?
http://i3.photobucket.com/albums/y73...s/IMG_9204.jpg the ports are smoothed out and it is gasket matched. and i am also an auto G so should be the same. so, you ported the lower plen too? im guessing that is where you got most of your gain from. ill send a pm |
:thumbup:
nice, good looking stuff |
ill be moving the flange so when the cutout is open it will flow straight through
http://i3.photobucket.com/albums/y73...s/CIMG1250.jpg |
if anyone has any flowbench info on any or all of the available intake manifolds, please post some numbers for the benefit of me and anyone else who may read this and find the info useful
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Cosworth says theirs flows at 408 on the intake which is roughly a + 19% improvement on stock (per their website). I think their popular engineer mentioned a Cosworth Indycar head flows at 412 or so.
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thank you sir
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as im looking around, i am finding na guys losing power in low to mid ranges but gaining only a tad bit up top with less power dropoff with a cosworth intake manifold. since the cosworth flows quite a bit more air than stock, i am wondering if that extra flow capability of the cosworth has an impact on the velocity of the air moving through the intake, which in turn affects the low to mid range negatively. kind of like having too big of an exhaust and losing velocity.
but then as you get into the upper rpms, the velocity is better in the cosworth since the motor is pulling more air any thoughts on that? |
Originally Posted by Zazz93
(Post 9339067)
Cosworth says theirs flows at 408 on the intake which is roughly a + 19% improvement on stock (per their website). I think their popular engineer mentioned a Cosworth Indycar head flows at 412 or so.
edit: i see 19% increase on the heads, i was asking about the manifold |
here are a couple of pics of the manifold.
The blue is with 5/16 spacer and stock lowers The red is with a 1/2 spacer and ported lowers with a stock top http://i224.photobucket.com/albums/d...t/DSC_0812.jpg http://i224.photobucket.com/albums/d...t/IMG_0404.jpg http://i224.photobucket.com/albums/d...t/IMG_0405.jpg http://i224.photobucket.com/albums/d...50gt/photo.jpg here is the thread about the intake on driver. http://g35driver.com/forums/intake-e...-manifold.html |
Thanks, I'm guessing most of that power increase came from the porting on the lower plenum, not the collector, but it looks good
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