Ported Intake Manifold

[SIXJAK]

Originally Posted by BSR-1

looking for 400.00 with no core charge. Meaning you keep your original.
A stock GM manifold is about 250.00

If you still have this after Dec 15th please PM me. I will take it off your hands for 400.00...assumng RX or VMax hasn't come out with a fully tested intake..Merry Christmas to SIXJAK.

Does anybody think 400 all motor HP at the flywheel is possible without getting into the heads? That's L99 territory with a bit less torque for sure but a bit less weight too as well as a motor that revs to 7000 RPM vs 6200 RPM.

[rtcat600man]

Originally Posted by SIXJAK

If you still have this after Dec 15th please PM me. I will take it off your hands for 400.00...assumng RX or VMax hasn't come out with a fully tested intake..Merry Christmas to SIXJAK.

Does anybody think 400 all motor HP at the flywheel is possible without getting into the heads? That's L99 territory with a bit less torque for sure but a bit less weight too as well as a motor that revs to 7000 RPM vs 6200 RPM.

I would have to say probably not possible,

if you use ricer math you can get there, but as we all know this is NOT the case.

Let's look at some ricer numbers and I will be generous for some.


Stock V6 is 312

Intake (vararam advertised best) around +25 rwhp or 30 at the flywheel

Throttle Body +13 rwhp or 16 at the flywheel

LT headers (BBK listed but not at peak not sure what the peak was for BBK) +33 rwhp or 40 at the flywheel

Trifecta cam phase tune +13 rwhp or 16 at the flywheel

Ported intake manifold (still waiting for this one)

Cat Back exhaust (pick on) +7 rwhp or 10 at the flywheel

Added up one would think you could see maybe another 112 hp at the flywheel. I would guess this might be more like 56 at the flywheel.

For a total of 370 hp.


Now there is the E85 factor.

I know bmorecam and BSR are working to get to that magic 400 number.


We shall soon see.


PLEASE KEEP IN MIND THIS IS RICER MATH FIGURES ONLY.

[MichaelH]

Hey BSR-1 did you tune your car after doing the port and polish or did you just port and poloish and drove it?

[KMPrenger]

Originally Posted by SIXJAK

Does anybody think 400 all motor HP at the flywheel is possible without getting into the heads? That's L99 territory with a bit less torque for sure but a bit less weight too as well as a motor that revs to 7000 RPM vs 6200 RPM.

The "300 RWHP Bolt-Ons Only?" thread sort of touches on this subject, cept we are talking rwhp instead of crank HP. My best estimate on achieveing 300 rwhp on a manual V6 is about 360 - 370 crank horsepower.

E85 seems to make that number easily achieveable, but not many people will want to do the E85 tune....I'll quote what I said in that other thread:

With some bolt ons and the E85 tune hitting right near or slightly over 300rwhp is pretty doable. But you said you can't really do the E85 tune...so in my opinion your going to need pretty much every bolt on out there plus the upcoming ported intake manifold to get close....ported heads will likely get you even closer if not over 300rwhp.

From what I've seen from bmorecam's dyno pulls...it seems like the E85 alone (well, with his mods) was worth a good 20 - 25 hp at peak which is incredibile for this engine.

So...intake, exhaust, LT headers, ported TB, the upcoming ported intake manifold, and the (normal gas)trifecta tune are what you'd need. I'd say this would be good for 280 - 290ish rwhp give or take some. Your manual transmission will certainly make it easier to hit that mark.

Thats my .02!

My guess is that 400crank hp would be difficult, but I think with all bolt ons and porting of the TB, intake, heads, and finally an E85 tune would get someone darn close.

[MichaelH]

Originally Posted by KMPrenger

The "300 RWHP Bolt-Ons Only?" thread sort of touches on this subject, cept we are talking rwhp instead of crank HP. My best estimate on achieveing 300 rwhp on a manual V6 is about 360 - 370 crank horsepower.

E85 seems to make that number easily achieveable, but not many people will want to do the E85 tune....I'll quote what I said in that other thread:



My guess is that 400crank hp would be difficult, but I think with all bolt ons and porting of the TB, intake, heads, and finally an E85 tune would get someone darn close.

and don't forget about those cams tracy is working on b/c than will def see over 400 n/a v6 with all the other bolt ons

[bmorecam]

This is my take on 400hp.

If we really only lose 15% for the manual by the time we see power to the tires this mean that an average rear wheel number for our 312hp to the crank should be somewhere in the 266. If this is true then this mean that we should have many peoples here already driving a 300rwhp camaro or very close which equal to around 345 to the crank. So we need another 55 hp to the crank or about 47 to the rear wheels to get to that 400 to the crank number some are talking about.

So now the question is, how hard is it to get that extra 47 rwhp? We already used up the intake, long tube, ported tb, and tune to get to 300rwhp(just theoretically) so the only thing left at this time would be porting and e85.

For one to really see a big jump in hp from porting we need to fully port the IM, heads, exhaust, and maybe even port match to headers then tune out the whole thing. From looking at past numbers on different various cars one can expect anywhere from 40-60 rwhp. Just with intake manifold alone we can see anywhere from 10-25+ with a tune, but everything is very dependent on the porting knowledge and how aggressively but most importantly how effectively materials been removed.

So at this point unless you are using ethanol or you are planning to do a complete porting I don't think 400hp to the crank is reachable at this point. Can we get close? absolutely!

Also remember, if we lose more than 15% through drivetrain than the 400hp will get harder to reach. You auto guys will also be behind by at least 2%.

If anyone plan to stay N/A and want big power then a cam is a must. Without it you can forget about it.

[Demon Hunter]

I'd be very happy with just reaching or slightly surpassing 300whp. I'm really hoping these ported manifolds and heads pan out, I'd love to go that route and call it a day. Mike Norris and RX need to get on it!!!

[KMPrenger]

Originally Posted by bmorecam

Also remember, if we lose more than 15% through drivetrain than the 400hp will get harder to reach. You auto guys will also be behind by at least 2%.

Can never trust the dyno, but sure seems like most of the dynos I've seen (with good DA) on stock manuals have them at around 16 - 17 % loss. Automatics are much worse at 20 - 21 %. Bummer.

[mhog]

What is the word on the Vmax mani's? Do they at least have the flow #'s.

[BSR-1]

Originally Posted by gjarzabek009

You gotta remove the heads i'm assuming?

No.
you remove the throttle body (4 bolts), pull three hoses off of the manifold, remove 9 bolts from manifold and it lifts off the top of the motor.
1/2 hour job

[BSR-1]

Originally Posted by MichaelH

Hey BSR-1 did you tune your car after doing the port and polish or did you just port and poloish and drove it?

just port and drive. No polish, I left the finish rough.

[BSR-1]

Originally Posted by mhog

What is the word on the Vmax mani's? Do they at least have the flow #'s.

Still in development.
Last I heard at least 60 days away.

[bmorecam]

Originally Posted by mhog

What is the word on the Vmax mani's? Do they at least have the flow #'s.

Not sure what is vmax planning to do but it look like its going to be a few other companies that are working on porting for our IM. One of them is actually working on mine and should be done any day now. I dont think anyone has flowbench number for the IM but there are numbers that's been established when bmwdon was planning on installing the ported head/exhaust for his car. We are about to have a before and after dyno once the porting is done in about a week.

[BSR-1]

Originally Posted by bmorecam

Not sure what is vmax planning to do but it look like its going to be a few other companies that are working on porting for our IM. One of them is actually working on mine and should be done any day now. I dont think anyone has flowbench number for the IM but there are numbers that's been established when bmwdon was planning on installing the ported head/exhaust for his car. We are about to have a before and after dyno once the porting is done in about a week.

Exciting news!