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Well I would not have believed using a stock intake with the 5/8" thick plenum spacer, sucking through a 37mm inlet restrictor, would pull HP like that. I should state that this is with 13:1 compression, 278@.050" duration, .480" lift cams, ported vq30 heads,ect.. These numbers are off a dynojet dyno. I would download the graph if I had a clue how to. My report here is not so much to say that the HP is all that great. I race with guys pulling closer to 400 crank HP vs my 365. Its to say that the stock intake would support that sort of airflow. And no, this engine is not streetable. At 4K rpm it only has 150 rwhp. It bucked so violently on the dyno below 3500 I had to ride it like a horse. But man, you shouda heard that thing run out to 8k rpm.
Chris Howard
Well I spent about 1/2 hour trying to figure out how to get my attachment to show up in my post. You guys tell me how its done and I will shut your childish traps.
Chris
That is a stock manifold, lower and upper plenum with a 5/8 spacer. The throttle body is a 65mm. And all that breathes thru a 37mm SIR. The vq30 heads are much easier to get compression with as they use small combustion chambers. Plenty of meat for porting. And I used stock injectors with the fuel pressure bumped up to 70 psi. Even with all that cam the Jim Wolf valve springs are adequate to over 8k rpm. As you can see by the dyno plot, anything over 8k would be a waste. Now, to get back to my original point. You NA guys are all wasting money buying intakes. Look at the HP the stock one supports.
Chris
whats with the long intake path, why not put the filter on the other side so its less distance from the filter to the intake mani? it will give u better throttle response, and maybe even a half hp or something
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no matter how awesome a car is, you can always do an el es huan swap and make it awesomer
310 RWHP with stock intake
...Replacement to follow
