IIRC the VK bore itself was larger but the blade wasn't any bigger than stock

I've used Q45 units before. Downside is to buy them new it gets confusing as there are multiple types. Plus, then you have to convert to a cable throttle (or did they havea DBW Q45?), which means a Haltech, et. al. That's the route I went on my car, though I stuck to a 75mm throttle body since that was the size of the opening for the Cosworth plenum neck

 

There were q45 TBs with DBW but those may have only been the ~80mm units and not the 90mm ones that would be good for this application.

 

Last few post are very interesting. Learning new **** everyday

 

+1... curious to see how well this set-up works and how much it costs lol

 

The interesting thing to see is how this all changes when a stock size throttle body is put back in place - that will reveal whether all the extra work to try to adapt one from another car is useful or not.

 

More like downgrading. It's worthless.

 

To me, any research and development is priceless, as it gives you incite into what this chassis and motor are still capable of. Even if something like this project were not feasible for production purposes, or hell, even if it failed it is beneficial to the development of the motor.

 

I believe he was referring to the Cosworth. He was saying that it was not an upgrade, but rather a downgrade from the stock plenum. Then referring to the cosworth again, calling it worthless. Ka24de was not referring to sgsash's manifold, but to the Cosworth one. At least thats what I got from it.

 

Ok, re-reading that makes sense. Lack of sleep is NO good...

I'll just delete that.

 

What's wrong with the Cosworth manifold? Works great for my car.

 

yeah i would like to know as well. I was going to buy one. I have the Kinetix one right now the V2...works good to so far no issues.

 

I think he means lack of gains for the cosworth. FI gains materialized, but there has been little proof of NA gains. SG probably has the most promising intake mod the VQ has seen so far. There are bored and stroked 4+ liter VQ's with headwork that can't lay down numbers that SG's car has made with just intake, cams and exhaust.

 

lets get to the point. CAMS!!!! allowing a longer rotation of timing the intake valves of course there will be a bigger increase in power with cams.

put the intake on a car minus the cams and lets see the power gains. I mean the engine is not truly "stock."

 

I agree that definitely helps... but the cams SG is running are pretty mild... people with wilder C8r/tomei/gtm/whatever 272+ are still not putting down those numbers. Even with headwork and displacement.

I think SG has either stumbled upon a commonly overlooked bottleneck or has a dyno that likes high numbers. Maybe a bit of both.

Many of the old japanese tuners myths claimed these astronomical power numbers from NA that were not materializing here in the US. Many of those cars had throttlebody mods. The biggest difference between even the almighty HR and the revup is the intake.

 

hmm..perhaps you are right, but still. THe #'s put up are still not in stock engine form.

doesn't matter it will be a long time b4 it is sold even that.

I think ima start messing around myself and make my own design. I always thought about a kinetix style but with out the huge barrel.
A design sort of like headers for the intake.small compact and gets the job done and even replaces the lower part as well. Bolts direct to engine. I'll call it "the spider" haha

 

In my opinion the DE nor the Rev-up will ever match a HR in power, mod for mod. The HR makes alot more topend power and can rev higher. Some of the top power and most of the "rev ability" comes from the longer rods and higher compression. The longer rods gives the HR a better rod ratio, which allows it to rev high safely, and also more time at TDC.

Even if you slap an HR head on a DE (which is possible) the HR will still make more power.

The DE is a great engine and so is the HR. I dislike Rev-up cause of the oil consumption due to different piston rings

 

Ok... but I am pretty sure most people already know that the hr is better than the de. Btw, I am quite certain that the hr has the same stroke length as the de. The vhr is the one with a longer stroke. Also there are no plenum upgrade options for the hr as well.

 

He said ROD length not stroke length
which decreases rod angle (ie better rod/stroke ratio)

 

Correct, I misread his post since I felt compelled to reply to such a meaningless post.

It baffles me why anyone would make a comment to insinuate that what SGM is doing is idiotic since it is on the older DE platform. These type of useless comments are the ones that can be kept to oneself. If you want to make a difference then go ahead and do what SGM is doing on the HR platform.

 

Q45 TB is 89mm, just a hair under the 90mm LS2 TB. Also, an upgraded/aftermarket Titan 90mm TB should be plug n play.

Just a couple of ideas...


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