In my seemingly never ending quest to a) improve my 3.1 and b) put together the most beautiful V6 engine bay EVER, I have been trying to figure out a way to improve the airflow without attracting the attention of the smog police here in California. Having gasket matched my intake and polished it, I was still frustrated by that sharp bend the airflow has to make to get from the upper to middle plenum manifold, when I suddenly had a revelation and came up with THIS!
These spacers straighten the airflow and ease the transition between the two manifolds, so here is the entire setup, less the middle manifold already installed. * the top part is my hand made coil bracket, complete with 'bowtie' cutout!
Here is a shot of it installed (the ignition wire looms are another mod of mine too).
These are prototypes, but I am willing to sell them as a kit if anyone is interested. The cost will depend on how many orders I can put together, since the CNC initial setup is expensive, so the more folks that want them, the better. Given that this was a first time prototype, how did it work? FREAKIN' AWESOME!! I have not flowbenched them yet, but the car seems- and this will sound strange- LIGHTER. It just gets up and goes quicker, as it it can finally BREATH.
These are 1/2 inch 6061 billet aluminum. At this thickness, the manifold still clears my STB by 1/4 inch. Without the STB, I can run 1 inch spacers and still clear the hood.
If anyone is interested in this ridiculously simple, effective mod, let me know. Keep in mind that I polished these (wetsanded up to 1500 grit them Mother's polished) to match my intake. It makes more economic sense if you want some to get them raw, so you can polish, powdercoat or anodize them to your needs(I may end up anodizing mine red to accent them, but NOT until I pass smog in September!).
Let me know what you think!
*patent pending
These spacers straighten the airflow and ease the transition between the two manifolds, so here is the entire setup, less the middle manifold already installed. * the top part is my hand made coil bracket, complete with 'bowtie' cutout!
Here is a shot of it installed (the ignition wire looms are another mod of mine too).
These are prototypes, but I am willing to sell them as a kit if anyone is interested. The cost will depend on how many orders I can put together, since the CNC initial setup is expensive, so the more folks that want them, the better. Given that this was a first time prototype, how did it work? FREAKIN' AWESOME!! I have not flowbenched them yet, but the car seems- and this will sound strange- LIGHTER. It just gets up and goes quicker, as it it can finally BREATH.
These are 1/2 inch 6061 billet aluminum. At this thickness, the manifold still clears my STB by 1/4 inch. Without the STB, I can run 1 inch spacers and still clear the hood.
If anyone is interested in this ridiculously simple, effective mod, let me know. Keep in mind that I polished these (wetsanded up to 1500 grit them Mother's polished) to match my intake. It makes more economic sense if you want some to get them raw, so you can polish, powdercoat or anodize them to your needs(I may end up anodizing mine red to accent them, but NOT until I pass smog in September!).
Let me know what you think!
*patent pending
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