Damn, I forgot how much NA sucks. (new intake manifold thread)
#1
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Damn, I forgot how much NA sucks. (new intake manifold thread)
I finally got around to installing the intake manifold I made. Well, it's mostly installed...there's a few things that have to be redone (water bottle catch can FTW) but it's in and the car runs.
The whole point was to be able to run the intercooler pipe thru the fender instead of between the radiator and the engine. I couldn't figure out how to do a decent sized over-the-radiator pipe while keeping A/C. And I had to teach myself how to weld aluminum.
I didn't have the time to do the intercooler pipe so I removed the turbos. Thanks to Paul for lending me the RB 4-1 header. As payment I'll fix the cracks in it.
Now it's a lot louder and a lot slower. Boo. NA sucks. I honestly have no idea how anyone can stand a non-forced induction miata. Damn.
BTW the car needed a decent amount more fuel in the part throttle zones.
The whole point was to be able to run the intercooler pipe thru the fender instead of between the radiator and the engine. I couldn't figure out how to do a decent sized over-the-radiator pipe while keeping A/C. And I had to teach myself how to weld aluminum.
I didn't have the time to do the intercooler pipe so I removed the turbos. Thanks to Paul for lending me the RB 4-1 header. As payment I'll fix the cracks in it.
Now it's a lot louder and a lot slower. Boo. NA sucks. I honestly have no idea how anyone can stand a non-forced induction miata. Damn.
BTW the car needed a decent amount more fuel in the part throttle zones.
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It's the stock (94) throttle body, just mounted upside-down. Paul also gave me a '99 TB that doesn't have the progressive linkage which will give me more clearance around the headlight motor.
Welding to the intake manifold wasn't as bad as I thought it would be. Welding to the cast waterneck for the coolant reroute was a lot worse (kinda melted like acetone on styrofoam) but fortunately the intake didn't give me as much problems. I welded the inside of the runners and tacked the outside. Then smoothed out/polished the entry to each runner.
Next is removing the borrowed header and old Enthuza (again, thanks Paul) cause it sounds horrible and then rigging my 3" exhaust with the OEM header, redoing the coolant reroute in aluminum hard line above the intake runners, oil catch can on the PCV line, overflow tank, 1.8l throttle cable (shorter), and of course the COPs!
First on the FI list is getting and installing the larger intercooler and piping. Most likely going to reinstall the TT's, but I may either build a single turbo manifold for the GT2871 (to fit my old 3" single turbo DP) or go with a different TT setup with the 2871 and my 2554. Depends on how long I want to go without boost.
Welding to the intake manifold wasn't as bad as I thought it would be. Welding to the cast waterneck for the coolant reroute was a lot worse (kinda melted like acetone on styrofoam) but fortunately the intake didn't give me as much problems. I welded the inside of the runners and tacked the outside. Then smoothed out/polished the entry to each runner.
Next is removing the borrowed header and old Enthuza (again, thanks Paul) cause it sounds horrible and then rigging my 3" exhaust with the OEM header, redoing the coolant reroute in aluminum hard line above the intake runners, oil catch can on the PCV line, overflow tank, 1.8l throttle cable (shorter), and of course the COPs!
First on the FI list is getting and installing the larger intercooler and piping. Most likely going to reinstall the TT's, but I may either build a single turbo manifold for the GT2871 (to fit my old 3" single turbo DP) or go with a different TT setup with the 2871 and my 2554. Depends on how long I want to go without boost.
#8
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Thanks. Looks bigger in the pics than it actually is. It's not square in cross-section, it's trapezodial.
Too bad your VICS isn't hooked up.
Thanks. Fuel rail is cool Umm it's probably easier to reach the oil fiter from in front of the intake (where the TB used to be) you can easily fit your hand behind the alternator to get to the lower intake manifold bolts, so i think the oil filter would be easier to reach now. But I have always gotten the oil filter from underneath. Also, I am not running any coolant to the throttle body.
Too bad your VICS isn't hooked up.
Thanks. Fuel rail is cool Umm it's probably easier to reach the oil fiter from in front of the intake (where the TB used to be) you can easily fit your hand behind the alternator to get to the lower intake manifold bolts, so i think the oil filter would be easier to reach now. But I have always gotten the oil filter from underneath. Also, I am not running any coolant to the throttle body.
#9
I'm surprised you didn't go with a mount for a bigger tb- like a mustang/tbird 5.0 70mm... or have you arranged for that? That's exactly what I need to do. My buddy built a similar approach, though from steel and then used silicone tubes to connect it to the chopped OE mani.
http://s50.photobucket.com/albums/f3...t=100_4341.jpg
http://s50.photobucket.com/albums/f3...t=100_4432.jpg
http://s50.photobucket.com/albums/f3...t=100_4341.jpg
http://s50.photobucket.com/albums/f3...t=100_4432.jpg
#10
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I seriously considered that. I have room for a 65 or 70mm honda TB, but IMHO either are not needed on a turbo'ed car and not worth the $150 or so. But there's room there in case I get convinced otherwise
I can always hacksaw the TB flange off and put a mustang one on there too.
Damn your friend's manifold looks pretty cool. Good ideas there, I like the runner inlets!
EDIT: After further review of his pics, that guy has way too much time...what kind of truck is that?
I can always hacksaw the TB flange off and put a mustang one on there too.
Damn your friend's manifold looks pretty cool. Good ideas there, I like the runner inlets!
EDIT: After further review of his pics, that guy has way too much time...what kind of truck is that?
Last edited by TurboTim; 10-01-2007 at 11:07 AM.
#11
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i wonder if the new mani futzed with your power curve and dropped your NA power. I can't imagine you spent as much time on a flow bench as mazda
better get that whirlygig back on there.
better get that whirlygig back on there.
#14
I figured the big TB would be in line with your lust for lots more power... tho I know it's really not a big deal with even ~300hp.
He has as much time as any of us (young single guys anyway). He just spent it on his truck rather than sleeping... and there's a lot of truth to that. It's a ford courier (b2000 to us in the US).
here's his build thread
here's his build thread
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True. My bend after the TB probaby doesn't flow as well as the straight-thru OEM (although the OEM mani does have some interesting protrusions inside the plenum). But I think any HP loss would be more offset by the gain in lower intake temps. Before, after just normal driving I could touch the intercooler outlet pipe and it'd be cool; the same pipe right before the throttle body would be too hot to touch.
#16
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I figured the big TB would be in line with your lust for lots more power... tho I know it's really not a big deal with even ~300hp.
He has as much time as any of us (young single guys anyway). He just spent it on his truck rather than sleeping... and there's a lot of truth to that. It's a ford courier (b2000 to us in the US).
here's his build thread
He has as much time as any of us (young single guys anyway). He just spent it on his truck rather than sleeping... and there's a lot of truth to that. It's a ford courier (b2000 to us in the US).
here's his build thread
#18
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Hi, I am SOOOOO stoked that you called me young! and also that i'm your buddy :-)
understatement of the year on the sleep deprivation comment, for the last month in nz i was getting less than 5hrs a night everyday. worth it though :-)
cheers for the comments.
i have no pics of the front in one piece, but this one is pretty much identical to how mine started :
http://i50.photobucket.com/albums/f3...ourier1989.jpg
http://i50.photobucket.com/albums/f3...rier1989-2.jpg
this is mine taken from a video clip a few seconds before locking it up :
http://i50.photobucket.com/albums/f323/fredio54/ute.jpg
i wish i had a tig to make stuff out of ally like yours :-( one day...
fred.
understatement of the year on the sleep deprivation comment, for the last month in nz i was getting less than 5hrs a night everyday. worth it though :-)
cheers for the comments.
i have no pics of the front in one piece, but this one is pretty much identical to how mine started :
http://i50.photobucket.com/albums/f3...ourier1989.jpg
http://i50.photobucket.com/albums/f3...rier1989-2.jpg
this is mine taken from a video clip a few seconds before locking it up :
http://i50.photobucket.com/albums/f323/fredio54/ute.jpg
i wish i had a tig to make stuff out of ally like yours :-( one day...
fred.
Last edited by rb26dett; 11-28-2007 at 12:39 PM.
#20
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Hi, I am SOOOOO stoked that you called me young! and also that i'm your buddy :-)
understatement of the year on the sleep deprivation comment, for the last month in nz i was getting less than 5hrs a night everyday. worth it though :-)
cheers for the comments.
i have no pics of the front in one piece, but this one is pretty much identical to how mine started :
http://i50.photobucket.com/albums/f3...ourier1989.jpg
http://i50.photobucket.com/albums/f3...rier1989-2.jpg
this is mine taken from a video clip a few seconds before locking it up :
http://i50.photobucket.com/albums/f323/fredio54/ute.jpg
i wish i had a tig to make stuff out of ally like yours :-( one day...
fred.
understatement of the year on the sleep deprivation comment, for the last month in nz i was getting less than 5hrs a night everyday. worth it though :-)
cheers for the comments.
i have no pics of the front in one piece, but this one is pretty much identical to how mine started :
http://i50.photobucket.com/albums/f3...ourier1989.jpg
http://i50.photobucket.com/albums/f3...rier1989-2.jpg
this is mine taken from a video clip a few seconds before locking it up :
http://i50.photobucket.com/albums/f323/fredio54/ute.jpg
i wish i had a tig to make stuff out of ally like yours :-( one day...
fred.
keep working on those welding skills man, you're getting there. oh and also what turbo is that? holset something.