mcrandrz

Are there any options for aftermarket intakes on the 3.1 v6. Yes I know about the hybrid swap. But this is my daily so I can't just stop driving.


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Maverick H1L

iTrader: (8)

Only aftermarket lower intake made for the 60* is an Edelbrock. For carbs.

So you have 3 options:

1. Deal with it.
2. Downgrade to a carb.
3. Wait until you have the time and money for either a full FWD swap or a hybrid conversion.

jensen73110

iTrader: (4)

Aw, it's a little better than that.
1. Downgrade to carb.
2. Used Truleo. lol...
3. Used Fiero DTB intake, if you have $800 laying around.
4. Fabricate pizza box, or similar.

Or just port the crap out of the existing intake.

caffeine

iTrader: (2)

Aren't the iron heads just as much of a bottleneck as the intakes anyway? I agree porting is the way to go if hybrid isn't an option.

ericjon262

there's always the custom route...

project89

iTrader: (1)

intake is worse , moving air does not like to bend or change direction.

something like th epizza box intake ( upper plenum) fixes on huge issue with the stock intake

the stock lower plenum is actually a nice piece and with a lil bit of work flows great , its the mid and upper section that kill it

mcrandrz

Eric thats on the hybrid isn't it? I'm in the process of saving up for a hybrid swap but I was just wondering. I guess theres not cheap options lol. Thank you I guess ill wait it out on the head swap


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fasteddi

iTrader: (2)

If you really want great flow without a power adder, a hybrid is the way to go. I also want to do that. Ive ported the living out of my heads and intakes and im 100% positive a stock 3 gen head flows way better.

project89

iTrader: (1)

i can get them close , if i spent about 2-4 hours with the heads u have now i bet i can get u about an extra 50 hp or better. throw a set of custom manley valves and a few other ods and ends at them and ill get even more

Maverick H1L

iTrader: (8)

2. Good luck finding one. They're more elusive than the super-rare Hedman (I think) headers for our cars. And I think they were proven to be not much help?
3. Only if it will fit under the hood. Hasn't been proven yet.
4. Doubt his fab skills are up to par and welding aluminum is difficult for a beginner. Having one made would be more money than the stuff required for a hybrid swap, more than likely.

Porting would probably be a waste of time if he's going to go hybrid anyways, and it requires a decent amount of downtime, which he's trying to avoid at current.

fasteddi

iTrader: (2)

Agreed.

ericjon262

no hybrid there, pure 3500. to be fair though, it's a Fiero, not a 3rd gen.

mcrandrz

I guess ima save some cash. I want the hybrid anyway. Just seems awesome and the numbers dont lie


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fasteddi

iTrader: (2)

hybrid is a awsome thing but if you can put a 100% 3.5L in a thirdgen... well then youll be doing what I dream of on a nightly basis...lmao.

ericjon262

I don't see why you couldn't. I'd make a mid plate or the main side to side, and then a mount on the oil pan. wouldn't be too hard.

caffeine

iTrader: (2)

I just have one mount on each side of the engine (3500). No mount on the oil pan required, and no engine movement . Swapping in a 3500 isn't really that difficult it's just that no one makes mounts for it and you either need to modify the oil pan or clearance the k-member for it.

All the necessary mods are really not difficult it's just time consuming, for example:
1) Modify oil pan, modify k-member, or buy tubular k-member
2) Make motor mounts (most difficult)
3) Upgrade to headers, slot holes in the stock exhaust manifolds, or find some FWD manifolds that fit (pretty sure two 3500 front manis would fit).
4) Drill/tap/plug extra water passage in RWD timing cover, cut off top 'ear' from TC cover
5) Flip intakes
6) Drill/tap LIM for CTS (I did it where one of the heater core lines comes out when FWD)
7) Figure out a new upper rad hose
8) Drill holes in accessory brackets to mount them to the heads properly
9) Upgrade to a 7165 or 7730 and make necessary pigtail changes/extensions/additions to stock wiring
10) Get an 88+ flexplate/flywheel if you don't already have one
11) Make/buy adapter for a cable throttle and use a W-body throttle cable
12) Buy external crank trigger
13) Tune!

VS hybriding the stock V6 which means
1) FWD Piston swap
2) Head/intake swap
3) Upgrade to headers, slot holes in the stock exhaust manifolds, or find some FWD manifolds that fit (pretty sure two 3500 front manis would fit).
4) Drill/tap LIM for CTS
5) Cut off top 'ear' from TC cover
6) Figure out new upper rad hose
7) Drill holes in accessory brackets to mount them to the heads properly
8) Upgrade to a 7165 or 7730 and make necessary pigtail changes/extensions/additions to stock wiring
9) Make/buy adapter for a cable throttle and use a W-body throttle cable
10) Buy a set of hybrid-length pushrods
11) Buy external crank trigger
12) Tune!

Missing anything?

Really, it seems like a hybrid is almost more trouble than it's worth over a full swap.

ericjon262

well, with a mid plate instead of block side mounts, I feel like some kind of front support would be necessary.

DeathStarr89

iTrader: (1)

2 thumbs up for a full 3500 swap...

mcrandrz

What does a 3500 even come out of? And would a stock 700r4 off a 3.1 work?


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caffeine

iTrader: (2)

Stock 700r4 should work with some cutting to the plastic torque converter shield iirc. 3500s come in 04-06 Malibus, 05-06 G6s, 05-06 Uplanders/Montanas, and probably a few more I'm forgetting.

caffeine

iTrader: (2)

Don't most people using a mid-pate setup use a front plate that mounts to the timing cover bolts? But that's way overkill for N/A and probably even turbo. Side mounts work perfectly fine.

DeathStarr89

iTrader: (1)

Side mounts work fine, no need to go overkill for a V6.


My 3500 came out of a '04 malibu, just make sure to get a LX9 3500 and not the LZE gen 4 as they require even more work to swap.


Yes, bolts right to a 700R4. Use a flexplate for a 95 2.2L S10, and you'll have to cut the metal dust cover for the trans since the starter is on the other side. Takes like 5 minutes.

You will have to notch the stock K member, again that's very easy and won't take long.


My server took a huge dump a few weeks ago, i'm planning on getting it running again this weekend and when that happens all my 3500 install pictures will be back up in my thread.

fasteddi

iTrader: (2)

I look foward to seeing some pics deathstarr. I want to start a 3.5L swap this winter.

Six_Shooter

iTrader: (2)

I'm Six_Shooter and I approve this message.

caffeine

iTrader: (2)

Looking for pics of anything in particular? I've got plenty on my build thread at 60*v6.com

fasteddi

iTrader: (2)

Mainly the trimmed K member and the exhaust routing. Not that I want to straight copy the exhaust but it gives me a good idea of what I would have in front of me.

Thanks man. Ill look for your thread on 60*v6.

caffeine

iTrader: (2)

Ah I have a tubular k-member so no trimming in my car. Mars' thread shows k-member trimming IIRC. Although FWIW the tubular k-member makes working in the engine bay soooo much easier. My pre-turbo exhaust actually came from Mars' car as did my accessory brackets but there are plenty of pics in both threads. My power steering bracket is just a stock F-body/S10 bracket with an extra hole drilled in it and the alternator bracket is a simple custom setup that uses a J-body 3.1 alternator (nice small alternator).

Ill add as well that it just makes sense to go twin-scroll if building custom headers. Our firing order makes it relatively simple.