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Custom 5SFE Intake Manifold Project - 6G Celicas Forums

Topic #93841 88 posts Started by doory100
doory100
#31
Thats not a bad idea. I don't plan on changing the intake runners but i will polish them from the inside. Here is a picture of the TB I picked up a few weeks ago.
It's off a V6 camry. I cleaned it up a bit. Its quite bigger than the 5sfe TB about 10mm

DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
doory100
#32
Finally starting the intake. Got the runner cutouts right. Formed the two sides. Now to weld on the runners and close off the intake and make a TB flange!
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Syaoran
#33
How much plenum volume are you going to have/chose to have?
1993 Celica GT Coupe - sold1994 Celica GT Liftback
doory100
#34
I think I'm changeling the design. What's the formula for calculating plenum volume?
It's shouldn't be bigger 1.5 times than displacement. Right?
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
doory100
#36
Here is the new design?

This is kind of what it will look like when it's finnished.
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#37
Looking good, the first one you posted looked way too large.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#38
I have decided to use custom runners instead of the hacked manifold... Just got the pipe bent last week.. putting some finishing touches on the runners..

using the flateners and the Amada press break to oval out the ends of the 2" pipe to match up with the flange..









This is a piece of pipe that broke when they were bending it.. Im using it for a setup piece and I'm glad I have it now.. I might have to bore out the flange a bit. what do you think?? any input will be appreciated.


I made some velocity stacks at work.. well kind of.. Ill post some picks later of the stacks once there finished.. I would like some input on the stacks once there up.
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#39
It's looking much better, sorry I can't offer any actual insight other than 'that looks like it'll work better' since I'm not well versed in the intricacies of manifold design but know enough to look at an engine and manifold and have a fairly good idea what may not work well.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#40
Here is a couple photos of the velocity stacks (kind of) I made. I'm getting a new manifold flange made of 0.500 t6 with bigger ports. Should be finished in a week or so.
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#41
The mouths look awfully flat.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#42
I made them myself. I think there pretty good and they will be better than a straight pipe.
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#43
Yes, just the transition from bell to pipe is pretty sharp, which the point of the mouth is to smooth that out. You can make them a little bigger and just notch them where they run into each other or vary the heights slightly.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#44
I'm at the point where I really just need to get this finished. I'm sure it's not going to make a massive difference.
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#45
Cool, there's always V2, V3, etc to get things perfect. I'll be excited to see the outcome and results! It's always interesting to see these projects, don't take my criticisms as all negative. I'm just trying to lend a little advice from what I know so that the project has a more favorable outcome and maybe inspires more creativity with these cars. Even though I don't own one, it doesn't mean I don't like them. I'd have a V6 GT in my garage if I had the spare money and garage space. One guy who already has two cars though....
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#46
Just got my cams back from delta camshaft. They look OK. I've never had cams reground before. Is it normal for the cams to look like they do?

DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#47
What is it you're worried about with the cams?
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#48
The lobes. Is it OK for the them to have chips at the sides and bottoms of the hard welds? Or is that normal in a regrinded cam?
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#49
Are the followers going to make contact with any sharp edges? If they're not then it should be fine.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#50
Followers? I'm sure they know what there doing at delta camshaft. It will be fine.
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#51
Shims, whatever makes contact with the lobes (follows the lobes). You can always ask Smaay, he'd know.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#52
What lubricant should I use to break in my cams? I was going to get new springs and valves. Should I spend the money or use my old springs and valves? I might just replace the exhaust valves, mine are pretty dirty.
exhaust valves

Intake valve
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#53
Head is off the car right? Pull the exhaust valves and clean them up on a wire wheel then check them.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#54
bought new valves for $100 CAD for all 16 of them!! I would have saved them if they cost more.
here is a picture of the ports and head all polished up and I also painted the front and two sides to match the valve cover. I also painted the V6 Camry TB red(its in the background).
The ports look rough but there not clean in the picture. I also lapped the valves but im having a hard time putting the springs back in. Any thoughts on that?





This post has been edited by doory100: Apr 23, 2015 - 9:16 PM
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
doory100
#55
Finally got a machine to cut my intake flange! LOL


DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#56
Did you press in new guides too?
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#57
no. but I put in new stem seals. Should I? are they hard to do? they look like there casted right into the head

This post has been edited by doory100: Apr 26, 2015 - 6:56 AM
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#58
You should at least check them for straightness and size, which requires a special tool set which probably costs more than the guides do. laugh.gif

Yes, I'd replace them if you're replacing the valves and seals and the head is off. You're also going to need to re-shim all the lifters to spec too, that's a fun process. You might want to PM Smaay about clearance specs, my understanding is you want them at the loose end of the spec so they don't get too tight when the engine is hot.

2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
doory100
#59
nah I think there ok Ill let that one slide. Im putting in all new lifters. do i still need to shim them. I thought you just have to tighten the lash?

This post has been edited by doory100: Apr 26, 2015 - 6:24 PM
DOORY MCFLYhttp://www.6gc.net/forums/uploads/av-50000...time=1408581712
Bitter
#60
new valves will have new clearances and need to be adjusted, as will new lifters. some stems may need to be ground as well.
2000 Celica GTS 'slowest gts evar'1998 Mazda 626 FS-DE/CD4-E
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