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Author Topic: Intake manifold options?  (Read 342 times)
Syn
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Intake manifold options?
« on: October 24, 2007, 06:56:27 PM »

Are there any aftermarket intake manifolds for the 420A? if not, what are some other performance oriented options? thanks in advance!
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Darktengu
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Re: Intake manifold options?
« Reply #1 on: October 24, 2007, 10:15:01 PM »

Intake manifolds

Venom (uberexpensive)
OBX, works great, but you need to do some custom fab work to get the sensors to fit.

Those are the only two I've encountered.  As for other performance, look at getting a bigger throttle body, and a 2.5" exhaust if you're staying NA, if you're going turbo up to the 3" exhaust right away.   You can do a cold air intake, and all that stuff too. 

Figure out what your overall goal with the car is and get back to me, then we can really start discussing upgrades.
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Syn
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Re: Intake manifold options?
« Reply #2 on: October 24, 2007, 10:26:08 PM »

well ive got an AEM cold air, and 2.5 catback. wanted to go boost but prob not for awhile now.(got a new baby on the way!) so im going to have a little fun with some bolt ons and what not. Which company makes a decent throttle body? and which headers would you personally suggest? im not looking to make major power, because im not that naive being N/A on a 420A with a tight budget. Just enough to have some fun with. i honestly dont know what a target streetable N/A HP goal would be on this motor?
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Darktengu
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Re: Intake manifold options?
« Reply #3 on: October 25, 2007, 01:28:58 AM »

I'm more down with forced induction.  I mean you could put in high compression pistons which would help a lot.  A "cheap" way to get some quick power is nitrous.  But you have to keep refilling it and it's bad for the motor.

My throttle body is a Zzapp Sports TB and it's excellent.  I got it through Howellautomotive.com  you can look at headers at CImotorsports.net
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Syn
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Re: Intake manifold options?
« Reply #4 on: October 25, 2007, 02:43:33 PM »

okay theoretically speaking, if i were to do a port and polish with port matching on the head(got a spare one for cheap) along with the intake manifold, throttle body, header,crane cams(the street profile ones), cam gears, springs/retainers, underdrive pulley, catback, test pipe, and cold air intake. and tune off of an AFC of some type where abouts would i be in regards to HP/TQ? i dont want to really mess with the internals because i dont wish to spend that money because i do plan on boosting in the future. the non-turbo cams i can resell around here locally pretty quick as well as the header. just some hopeful thinking. thanks again!
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Syn
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Re: Intake manifold options?
« Reply #5 on: October 25, 2007, 02:51:35 PM »

thanks for the links also!! threw some good karma your way as well!!
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Re: Intake manifold options?
« Reply #6 on: October 25, 2007, 04:26:04 PM »

your better off yanking the head and getting it professionally done, than to bolt a bunch of crap to it expecting to make more power.

put it this way..

70% of your engines potential is determined approx 2" either side of the valves.. 10% is the bottom end.. the last 20% is external crap.

spend 70% of what you'd spend on bolt on crap on the head, and you'll receive great rewards.. why waste money on the percentage that will give you the smallest returns..?

EVERYONE has done bolt ons and pistons.. how many people actually got their head flowed..  exactly.. all of about 3 people.. oh and pacwest who was making about 330hp on this engine.. but.. ya know.. what does pacwest know..

With just basic work on the head, i'm getting boatloads more torque between 2500 and 5K.

I could care less about high rpm hp.. i don't typically drive above 5K.. i'd rather fatten it up in the middle Smiley



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Re: Intake manifold options?
« Reply #7 on: October 25, 2007, 06:58:12 PM »

oh there is no way i would do all those bolt ons without increasing my engines internal breathing capabilities. I know that the intake manifold and TB, and etc... would actually hurt more probably than help(all items together). thanks for the info.
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Re: Intake manifold options?
« Reply #8 on: October 25, 2007, 10:42:17 PM »

how many people actually got their head flowed..  exactly.. all of about 3 people..

Were you counting me?  Because I have too  Wink

And Rob, if you're thinking of going turbo, why not pick up a spare engine and just start from scratch?
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Re: Intake manifold options?
« Reply #9 on: October 26, 2007, 03:30:31 PM »

well i would just need the block, because i have an extra head. just need to track one down.
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Darktengu
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Re: Intake manifold options?
« Reply #10 on: October 26, 2007, 08:23:36 PM »

well i would just need the block, because i have an extra head. just need to track one down.

I have a spare head, well maybe.  If my current head is still ok (not counting on it) then I'll have a spare.  Nykon has dibs on it, but I"m not sure if he still wants it.
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Syn
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Re: Intake manifold options?
« Reply #11 on: October 26, 2007, 08:54:42 PM »

thanks, but just need a block. Anyone have one? anyone? Undecided
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Darktengu
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Re: Intake manifold options?
« Reply #12 on: October 26, 2007, 10:46:21 PM »

LOL I completely misread your comment.
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titan-racing.com
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Syn
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Re: Intake manifold options?
« Reply #13 on: October 27, 2007, 12:12:43 AM »

happens to the best of us!!
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Re: Intake manifold options?
« Reply #14 on: October 27, 2007, 01:02:45 AM »

I have an extra block  Undecided
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