450sx part 2

[gsracer]

yea this car actually gets used lol.. i actually just fixed it from trying to be a cool guy and doing this

[SicBastard]

Did you ever upgrade the MAF and push it past 420 whp? Or was that 0-60 on the old 6 psi tune?

[gsracer]

yea its actually at around 450-470 whp. Im running 8.5 psi, and i leaned it out from 10.0 to 11.0 afr.

[4-20sx]

What mac u running now gsracer?

[bkg775]

I just picked up my VH today man your build was what I researched to figure it out haha. You should do a 1/4 mile run and see what it gets

[TougeLabs]

Hey I Pm'd you a while back, I'm in the middle of doing my vh swap and I'm really interested in the brackets for the vortech. Care to share ?

[Exas Spec D]

I'm in the middle of a VH swap into my fastback. Hope all goes well...

[sexcii-zenki]

amazing build!!! i kno sum1 askd b4 but i could find the response unless i missed it, but whats the rad part #?

[gsracer]

Well i decided i had enough of the stock intake manifold and heard and saw some rumors and photos so i decided i would experiment, just got the intake manifold it comes from a 4.5l 2005 porsche cayenne, it came complete with fuel rails and injectors. It looks boss.

From preliminary measurements everything lines up port wise except the bolts obviously.

I only see two issues so far.

1. Its taller than i thought it would be.

2. Its gonna interfere with the factory thermostat housing.

My tentative plans are to lower it as much as possible and if possible drill erectly into the heads or run a small spacer less than 1 inch, also to remove the factory cooling system and go to electric water pump with the inlets and outlets coming out through the back.

Anyway enough of my banter onto the pictures....

[tryangle]

just wondering.....was that wall"tap" intentional?

[gsracer]

Originally Posted by tryangle

just wondering.....was that wall"tap" intentional?

um... i was intentionally trying to get close?

[codyace]

Mad Hater, back at it!

[4-20sx]

Do u think it would he taller than stock intake manifold? Or just slightly lower?

[gsracer]

i would hope it would be at least 1.5 - 2 inches lower.

[slipnslide88]

i heard of this on your forum from ron i was wondering who was doing it. shouldve known lol im interested in flow numbers if it will increase hp to be worth the money

[gsracer]

well got to mock it up today... coolant lines are a non issue as it will be high enough ultimately..

Heres some pics and measurements.












overall it will be 1.5 to 1 3/4 inches lower than the stock manifold





spacer will be 1.25 to 1.5 inches







heres the problem, it lines up a little worse than i thought so it may need some massaging.





the stock throttle Vh45de body bolts up after a little filing of the bolt holes, and I'm talking slight filing here.

[codyace]

Is this manifold something that you just 'through of' or has it been used in the past? Curious as to if the Ford manifolds from the mod-motors would have fit?

[gsracer]

actually a guy in the uk gave me the idea that was swapping a vh45 into a gtr.... I had thought about a modular ford intake but for the deal i got on this one it was to good to pass up

[sexcii-zenki]

dayum! i havent finished my VQ and now i wana do a v8 swap lol...lookz amazing

[gsracer]

got the materials...

[WYT R1CE]

That manifold looks nuts haha, I want to make a custom one soon, maybe once I go to boost it.

Glad to see you're still messing with the car!

[pandaroo]

who thought hmm... i think a Porsche manifold will work! i cant imagine how that was thought of lol. but looks sick none the least!

[gsracer]

made some progress...

[gsracer]

well I've measured and measured, and drawn diagrams, and gaskets and measured some more. it looks to be on point.

Final machining will be done today.


heres some pics

[4-20sx]

awesome... it actually looks like it woudl sit higher but i dont know lol

[gsracer]

well the finished product is gonna be 10mm lower than that, its being milled down as we speak. I wanted to make it higher on purpose. From experience its much harder to add material than remove it.

It also looks really tall because there are no valve cover on the engine. In the end it should either be as tall or slightly shorter than the stock one.

We shall see

[vas570sx]

lookin good dood

[4-20sx]

yea. im loving the top feed injectors!

[SicBastard]

What's the purpose of the Porsche intake swap? Just noodl'n around? Is it actually supposed to be worth some horsepower? Did you flow it vs the vh intake?

[gsracer]

Originally Posted by SicBastard

What's the purpose of the Porsche intake swap? Just noodl'n around? Is it actually supposed to be worth some horsepower? Did you flow it vs the vh intake?

No i didn't flow it. I don't know for sure although i hope it will make some more hp up top. Having said that i will be doing a before and after dyno comparison.

reasons i did this...

1. bored
2. top feed fuel injectors
3. aesthetics / packaging.
4. cool factor

who knows... it might be an epic failure in the end haha.

and no i won't be producing a kit.