AFR Composite Intakes.......

[TC]

All I would be intrested in would be the cooling effects. I wonder if you could get one in a different color, black seems to soak up heat but white would be a pain to keep clean. White would be fine if you could just hose it off with some brake cleaner or something.

That's what I was thinking, even though the motor will have intercoolers, there is that last little bit of heat soak that happens as the charge flows through the intake, though this could be good or it could be bad, as the intake charge does need to be at a certain temp entering the cylinder to promote a good combustion, so depending on how well the intercoolers cool the charge, might determine which manifold to use......

As for Boost, AFR has tested this manifold to 200psi without failure.......... I know Joe Sherman over at SpeedTalk had a lot of good to say about it........

And just to get another opinion, what's your take on the Holley Strip Dominator I have, Good, Bad??

[A/Fuel]

I'd like to make.....(alright, this would probably be skill level 3 for me) or have made a carbonfiber injector too.
I would think the little rubber silicone pieces hose clamped to the pipe would come off before the intake came apart. I don't know about a back fire though. It would probably hurt more than just an intake anyway.

[anotheridiot]

I know there is some history, mainly the dodge / mistubishi 2.7 in an 01 stratus we have is all plastic, but the fuel is at the base with the injectors, not coming thru the plastic manifold. They have bosses for injectors at the head so just air would come thru there, but I dont know how much of their 10 years of using them have to do when there is fuel involved.

[JeffMcKC]

TC 200 lbs is nothing on a Backfire. On second thought TC get one.

[dieselgeek]

That's what I was thinking, even though the motor will have intercoolers, there is that last little bit of heat soak that happens as the charge flows through the intake, though this could be good or it could be bad, as the intake charge does need to be at a certain temp entering the cylinder to promote a good combustion, so depending on how well the intercoolers cool the charge, might determine which manifold to use......

How do you know any of this, out of curiosity? was it printed in CarCraft somewhere? You might want to talk to people who work on running, gas burning engines about inlet temps, what's possible with an intercooler (water or air), etc.

As for Boost, AFR has tested this manifold to 200psi without failure.......... I know Joe Sherman over at SpeedTalk had a lot of good to say about it........

Joe Sherman also claims you can gain 100hp by running a certain brand of spark plug wires.

[TC]

How do you know any of this, out of curiosity? was it printed in CarCraft somewhere? You might want to talk to people who work on running, gas burning engines about inlet temps, what's possible with an intercooler (water or air), etc.

I bought 5 of Vizards books, it's where he's talking about the intake charge being to hot or to cold and the effects that it has........ I'm almost done with the first one, How to build Horsepower, I suggest reading them, as they are very informative..... The next one I'll be reading is Carburetors and Intake manifolds........

One thing I've learned so far from reading Vizard is we're ALL a bunch of Hacks.........

[dieselgeek]

I bought 5 of Vizards books, it's where he's talking about the intake charge being to hot or to cold and the effects that it has........ I'm almost done with the first one, How to build Horsepower, I suggest reading them, as they are very informative..... The next one I'll be reading is Carburetors and Intake manifolds........

One thing I've learned so far from reading Vizard is we're ALL a bunch of Hacks.........

When and where does Vizard write books about turbocharged engines? I know he "claims" to have built thousands upon thousands, but personally I think Vizard WILDLY over exxagerates his own experience. His cup car engine from a few years ago was the slowest engine on the track.

I don't think we're ALL a bunch of hacks. I think some of us sit there and read books and talk on the internet and never, ever finish a project. I'm burnt out on your "reading expertise" - I just want to see you with something that runs under its own power.

[jcharliem]

Hmmm...wonder if Vizard wrote that short strokes "rpm faster."

Agree...only some are hacks.

[dieselgeek]

Hmmm...wonder if Vizard wrote that short strokes "rpm faster."

Agree...only some are hacks.

yep. some need to get the hell off the internet and get cracking on a project, and FINISH IT.

[Barry Donovan]

there is a performance advantage of not transferring heat up to the carburetor on an N/A engine. Thats why the LS engines are closed on the top of the valley to keep a cooler charge. Adding any heat from the turbo is what you have to study. If you are gonna bring heat from the top, I would assume the savings of heat from below would be negated. I guess if your turbo's were plastic I would trust a plastic manifold, but dont know how many pieces that could end up in with the boost you plan to run.

true.
not sure how they get away with the composite stuff..
days of real draft are less than ever, but still, I could not fall for the faith in electrons guiding it alone. My locale needs classic.

my dads jeep has composite. It kina hesitates like my sube when there is an air boot leak...and not even findable.

[dieselgeek]

4.8 LS stock composite manifolds (plastic) can support 1200+hp. We were making 1000+ at the wheels on the Parish truck, which won it's class twice at Drag Week (that should be proof enough). But, that was with EFI, not a carburetor. Carbs are prone to backfire. I did see a ford modular plastic intake pop off once with an intake backfire. That's ugly as the engine revs to the limiter almost instantly when that happens.

[silver_bullet]

on a modern FI engine, aren't the intake manifolds primarily dry(air only), and longevity issues might arise when subjected to fuel additives and the like??

[JeffMcKC]

Very Wet

[JeffMcKC]

TC quit reading about the Game, and get off the Bench and Play!

[TC]

TC quit reading about the Game, and get off the Bench and Play!

Sorry buddy, it's August in Phoenix, I'm hanging on the bench for a few more weeks.......

I guess I can share a little of what's going on, I plan on getting the cam for my '99 Camaro in the next few weeks, I dropped the ported LS6 heads that I got off to get them checked out, so the ball is rolling on the head and cam swap on that car..... I am also figuring out how I can run a power outlet to operate a lift, since the plan is to pore a new slab back where I built my storage shed and put in a 9000lb lift, cause this old boy is getting sick of laying on his back...... So this is the plan for the next couple of months..... And there's a couple of other things on the plate to, but I don't need to share all that, yet..............