If you put an S5 intake on a S4 engine is there much difference in power?,and if so how much is gained?

 

Is it worth it or stay with s4 intake! I would love to go side draft webers!

 

it's 6 of one and half a dozen of the other.
If you are having a hard time with EFI and want to go Carb,But you do not have the knowledge of either.Stick with EFI!..
Taking a EFI engine and turning it into a carbed engine is a little trick,but not exactly a nightmare.
The Thing about Carbs it that they need tuning constantly,as the EFI pretty well takes care of itself.
Long story short,If you like to tinker then ya,s5 or carb.If you want to drive the car,then stay S4.
The power increase really isn't worth all the time and aggravation of doing the mod.

 

The cost/time per HP gained in a na is relatively high, compared to its tough turbo brother .

The best bang for your buck are headers and a catback exhaust. Everything is will yield small results, sure a bunch of mods may give you another 10-15 HP but it'd be cheaper to just do a turbo swap.

rotary > pistons

 

Thanks for the info I love ta tinker i am a Master ASE and Mercedes tech! So tinkering is my life!! So I think I go with webers! Plus love to watch the air suck in to those webers on real cold mornings when your under the hood! I also like the better atomization of fuel at top end!

 

If you're good at your stuff and confident go for the s5 intake manifolds.

It will give you more mid-top end power.

There's a writeup on the stickies somewhere.

rotary > pistons

 

If you love to tinker, then don't downgrade the car to carburetors.

Upgrade to a Megasquirt to control your stock EFI. Then when you get bored of the stock intake manifold, you can swap to an ITB style. Sure you'll loose all your low end, but it will look like a carburetor...

 

Thanks Mr Cake but as we all know 7s are not known for there low end torque and power so top end is the whole idea and at the end of the day nothing you can do to an EFI system will give the top end power as carbs! That is way race vehicles have carbs better atomization!

 

they are switching over slowly to EFI, you have far better control with a injector then you do with a carb. a carb is just a controlled fuel leak.

 

Forgive me for being old school but there is no way yet and will there be for years that can beat that of a carb at top end! And yes you are right it is a controlled fuel leak! But is still better at producing more horse power at top end speeds then any EFI system!

 

You see there is just not the atomization with an injector! At top end speeds!

 

I think you need to do some more research regarding efi

carbs are antiquated and wasteful

 

K well guess all your top fuel racers! And any pro racer for that matter should do the same! Like F1,NASCAR .... Right!

 

why ask a question you don't want to hear the answer to? You asked if a carb is worth it...the answer you got was no...and now you're arguing against that by saying the same thing over and over: top end atomization. Now personally I can't tell you a thing about the atomization differences between a carburetor and fuel injected system, but based on the answers you've gotten, I think it would be worthwhile to look into the benefits of a megasquirt EFI controller versus the more complex process of modifying your engine to fit a carb.

 

Totally true. Carbs aren't that great, if they were they'd still be put in cars.

Edit: they might give a good amount of power but there are way more negatives than positives compared to efi, get independant throttle bodies and a peripheral ported engine using efi and a standalone if you want some real top end. It will scream like a monster



rotary > pistons

 

Hey thanks for the info Y'all!