The Best Stock Turbo Manifold?
It's not strange that people want low-end power...rather I should say torque, because that is what you feel when you stomp on the gas and it makes the car a lot more fun to drive. If you're trying to win races then you'll probably want to tune for WOT performance, but I'm gonna go out on a limb and figure most of these guys are just driving on the street and that is where you want to hang onto low and mid range power.
Also I don't think you can buy a manifold alone - with no other mods - and expect much of a difference. Suppose you replace the stock manifold with a tubular part, and let's say you have a decent exhaust and downpipe but leave everything else alone...would you still see 15-25 whp gains across the board and how would the new manifold affect the torque curve - because if it compresses the torque curve the car is going to feel "sluggish" from a stop.
Also I don't think you can buy a manifold alone - with no other mods - and expect much of a difference. Suppose you replace the stock manifold with a tubular part, and let's say you have a decent exhaust and downpipe but leave everything else alone...would you still see 15-25 whp gains across the board and how would the new manifold affect the torque curve - because if it compresses the torque curve the car is going to feel "sluggish" from a stop.
Last edited by RockmanX; Jun 24, 2010 at 12:05 PM.
Evolving Member
Joined: Aug 2006
Posts: 138
Likes: 22
From: Philly
When it comes to a part like the manifold, the gains (if any) that you see will depend a lot more on what else you have done to your car....so one guy may see 20 WHP gains and another guy may see 5 WHP or less. So does anyone have some dyno sheets that show stock vs ported stock vs tubular manifolds, where the manifold is the only part that changed between each run.
Evolved Member
iTrader: (33)
Joined: Jul 2002
Posts: 5,313
Likes: 1
From: Raleigh, Transplanted from Toronto, Canada
Evolved Member
iTrader: (33)
Joined: Jul 2002
Posts: 5,313
Likes: 1
From: Raleigh, Transplanted from Toronto, Canada
There was big post done on a Evo VIII and it showed the Shearer making something like 15-20 hp over the BR ported stocker. I have to find the post.
My eyeballs hurt I just read this entire thread. I think spending upwards of four digits on a manifold is a bit crazy, but who am I kidding, Im gonna do it. Any body heard anything about the J speed manifold?
my head is spinning from readin this thread. i will simply say that a turbo mani will only net horsepower gains in relation to what else is done to the car. so results will vary greatly from person to person, car to car.
that being said, i really like the jm fab piece. have seen it in person, welds are great, design is awesome, only downside is price. but like someone else mentioned, your willing to spend the coin if you want the power. that being said I have no first hand experience with this piece, so take it with a grain of salt
that being said, i really like the jm fab piece. have seen it in person, welds are great, design is awesome, only downside is price. but like someone else mentioned, your willing to spend the coin if you want the power. that being said I have no first hand experience with this piece, so take it with a grain of salt
I have heard alot of people saything that you will get better spool, I have also heard people saying you will get slower spool over ported stocker etc..
Im looking at swapping my MAPerformance Ported Exhaust manifold out for a Coated and Wrapped Full-Race manifold. I have a 2.3L + Ported/Coated HTA EvoBlack.
Does anyone have results of a FullRace manifold on a similar setup? Has anyone changed out from a ported stocker to a fullrace? How was power/torque? Spool effected??
This setup will not be run on E85 (yet..)
Im looking at swapping my MAPerformance Ported Exhaust manifold out for a Coated and Wrapped Full-Race manifold. I have a 2.3L + Ported/Coated HTA EvoBlack.
Does anyone have results of a FullRace manifold on a similar setup? Has anyone changed out from a ported stocker to a fullrace? How was power/torque? Spool effected??
This setup will not be run on E85 (yet..)
I have heard alot of people saything that you will get better spool, I have also heard people saying you will get slower spool over ported stocker etc..
Im looking at swapping my MAPerformance Ported Exhaust manifold out for a Coated and Wrapped Full-Race manifold. I have a 2.3L + Ported/Coated HTA EvoBlack.
Does anyone have results of a FullRace manifold on a similar setup? Has anyone changed out from a ported stocker to a fullrace? How was power/torque? Spool effected??
This setup will not be run on E85 (yet..)
Im looking at swapping my MAPerformance Ported Exhaust manifold out for a Coated and Wrapped Full-Race manifold. I have a 2.3L + Ported/Coated HTA EvoBlack.
Does anyone have results of a FullRace manifold on a similar setup? Has anyone changed out from a ported stocker to a fullrace? How was power/torque? Spool effected??
This setup will not be run on E85 (yet..)
its pretty much universally known that on any good tubular setup you will gain power/tq over a ported stocker but you will loose alittle spool. basically give up low end for sure to gain mid and high. you have to decide if gaining +15+ is worth the mild spool loss and low end grunt of your ported stocker. You dont need to coat and wrap it either waste of funds. Coat it only and be done with it.
Quoted for TRUTH!!!
I only really care about gains 3800 ~ 4000RPM and above. So if that will give me gains the powerband I want, then its all good. It will be worth it.. (considering it is basically a race car now..)
not sure if this has been brought up or not, but here is a Titanium one for $1000 by Weapon-R.
http://www.jdmcarboy.com/index.php?m...oducts_id=1965
edit: weighs @ 6lbs
http://www.jdmcarboy.com/index.php?m...oducts_id=1965
edit: weighs @ 6lbs
