Miata Turbo Forum - Boost cars, acquire cats.

Miata Turbo Forum - Boost cars, acquire cats. (https://www.miataturbo.net/)
-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   over the rad charge pipes (https://www.miataturbo.net/diy-turbo-discussion-14/over-rad-charge-pipes-16406/)

bryantaylor 01-30-2008 05:04 PM

over the rad charge pipes
 
i know there was a thread about it not to long ago and i thought it was a good idea. the intercooler is a starion front mount, 2 inch pipes. i need to get some mandrel bends and better couplers, i (tried) to run 15psi, and it wasnt going to happen with the current pipes :nono:

http://img526.imageshack.us/img526/1599/img0557sk9.jpg

adjemin 01-30-2008 11:03 PM

Looks like an interesting functional/low-buck DIY, coupla thoughts:

Air filter sucking hot air from hotside piping proximity=bad--reroute air intake?

Airflow over rad looks compromised--i.e., loss of flow due to upper gap. I've seen the over-rad mounting keep the rad in the stock position whilst going through the stock upper frame holes, esp. with smallish (2") I/C piping...ideas?

BTW, what happened when you tried to run 15psi?

What kit/manifold is that?

Speaking of DIY and low-buck, dig the heatshield:)

bryantaylor 01-30-2008 11:07 PM


Originally Posted by adjemin (Post 207184)

BTW, what happened when you tried to run 15psi?

the pipes tried to shoot across the bay :vash:

and its the standard ebay mani

levnubhin 01-31-2008 08:25 AM

Looks good, I woud just make a pipe to put the filter by the clutch resivoir and make an air diversion plate for the gap in front of the radiator.
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cardriverx 01-31-2008 10:22 PM


Originally Posted by bryantaylor (Post 207188)
the pipes tried to shoot across the bay :vash:

and its the standard ebay mani

makes a scary sound doesent it? first time I blew a pipe I thought the engine was a goner haha.

Toddcod 01-31-2008 10:41 PM

I like the heat shield! LOL ... Does it work? I might have to put a playboy on mine till I can get a shield. Lol

Toddcod 01-31-2008 10:46 PM

Timming Belt Cover
 
Why do you cut the cover off the timming belt? Bigger cam sprockets? Does this compromise the integrity of the belt and holding timming.

Loki047 01-31-2008 11:00 PM


Originally Posted by Toddcod (Post 207669)
Why do you cut the cover off the timming belt? Bigger cam sprockets? Does this compromise the integrity of the belt and holding timming.

No its just for looks. (unless it has adjustable cams)

bryantaylor 01-31-2008 11:09 PM

plans for future mods, hopefully, lol

speedf50 02-01-2008 12:37 AM

How did you go about moving the radiator? I really like the over the rad idea.

And for intake if you plan on making your own you could try cutting a hole in the firewall and routing the air from the cowl, thats what I have now NA, but then again it is easy to do with the stock airbox as it just needs some shopvac hose.

emmi 02-01-2008 12:44 AM

^ u just find a way to make a longer radiator mount and it should be fine...

on my input though, try n make a cover for that gap so u'll be forcing air through the radiator instead of having it go around

thesnowboarder 02-01-2008 03:18 AM

How does moving the radiator further into the bay compromise cooling efficiency? By the looks of it i would imagine air going up and over the radiator as apposed to forced through.

bryantaylor 02-01-2008 04:20 AM


Originally Posted by speedf50 (Post 207726)
How did you go about moving the radiator? I really like the over the rad idea.

unbolted it, them made the likke bracket you see in the middle, then cut the top hose about an inch at each end

Doppelgänger 02-01-2008 11:01 AM

Damn Bryan, did you take a can of spray paint to everything under the hood without moving anything?? lol Nice.

Sounds like it's time to invest in some t-clamps!

ZX-Tex 02-01-2008 11:13 AM


Originally Posted by thesnowboarder (Post 207750)
How does moving the radiator further into the bay compromise cooling efficiency? By the looks of it i would imagine air going up and over the radiator as apposed to forced through.

I think you answered your own question, unless you meant improved cooling specifically for the intercooler. Flow through the intercooler might increase since the radiator provides less restriction. But flow through the radiator would decrease if the air is allowed to flow around it instead of through it.

Loki047 02-01-2008 11:34 AM


Originally Posted by ZX-Tex (Post 207845)
I think you answered your own question, unless you meant improved cooling specifically for the intercooler. Flow through the intercooler might increase since the radiator provides less restriction. But flow through the radiator would decrease if the air is allowed to flow around it instead of through it.

This is Dependant on the intercoolers spacing from the radiator

bryantaylor 02-01-2008 01:23 PM


Originally Posted by Doppelgänger (Post 207839)
Damn Bryan, did you take a can of spray paint to everything under the hood without moving anything?? lol Nice.

thats exactly what i did :bowdown:

Kenny 02-01-2008 05:32 PM

1 Attachment(s)
I liked the idea and did the following, see pic

bryantaylor 02-01-2008 05:42 PM

nioce

m2cupcar 02-01-2008 05:48 PM

I'd like to see the bracing to compensate for all the cutting on the cross piece.

speedf50 02-02-2008 02:35 AM


Originally Posted by bryantaylor (Post 207758)
unbolted it, them made the likke bracket you see in the middle, then cut the top hose about an inch at each end

Sorry, I only speak English.

Are you saying that the only thing holding the radiator on is that bracket on top? Also, how well do you reckon the 2" pipes will flow once you stop them from falling apart?

bryantaylor 02-02-2008 02:48 AM

no, its still on the stock mounts on the bottom. and the 2inch pipes will flow enough for the power i plan on making. i only want a MAX of 200whp

speedf50 02-02-2008 03:34 AM

So its just stock bottom mounts and that upper one in the picture changing the angle, leaving the original upper mounts unbolted?

I really like this idea because it is nice and simple and clean.

And do you think the pipes would limit you to 200whp or thats just what you want to achieve? I think that is the kind of power I would want too, I still need to get a ride in a boosted miata.

bryantaylor 02-02-2008 04:17 PM

i have no idea what it would be good up too, but the most power i want to make is 200. its really fun to drive now at maybee 150whp, at most. 13g at 7-8psi

Toddcod 02-02-2008 05:35 PM

I would love to ride in one too. I have bought all these parts and have never ridden in one. Im ready to get mine running and the car turbo'ed.

How much power would you expect from 305cc injectors and 10psi, on a 92 1.6 with a fm kit. 3 inch down pipe? I don't have to pass smog so I was thinking of putting 3 inch to the back. I wounder if that would help or help or hurt it.

I want to eventually run 12psi and get a MS but I'm tired of waiting.

It is going to run or burn to the ground!!!!!!!!!!!!!!!!

reddroptop 02-02-2008 06:22 PM

Home depot couplers?

bryantaylor 02-02-2008 07:42 PM


Originally Posted by reddroptop (Post 208419)
Home depot couplers?

yep, for now. they work great for low boost

The_Pipefather 02-02-2008 08:54 PM

Did you need to clearance the hood. If so can you post a pic with the hood closed.

bryantaylor 02-02-2008 09:35 PM


Originally Posted by The_Pipefather (Post 208462)
Did you need to clearance the hood. If so can you post a pic with the hood closed.

nope, i didn't have to cut anything on the hood at all

speedf50 02-03-2008 02:37 AM

I really like your build, how much $ do you have in it so far anyways?

bryantaylor 02-03-2008 04:12 PM


Originally Posted by speedf50 (Post 208578)
I really like your build, how much $ do you have in it so far anyways?

220 for MS
40 for the intercooler and new outlets welded
70 for the turbo
30 for the injectors
125 IIRC for the mani
20 for a nice DSM O2 houseing that i made a downpipe out of
abour 30 in charge pipes/couplers at most

so just over $500

patsmx5 02-03-2008 04:29 PM

Yea I'll be doing an over the rad charge pipes as well on my 99. Will go with at least a 18x12x3 core, but may go longer if I can. 18" core puts the center of the charge pipes around 21-22", which is just right to go from the to the SC, or now, the turbo. I'd like to go as large as possible though, so I may put something with a larger core and 'make' it fit.

speedf50 02-04-2008 03:51 AM


Originally Posted by bryantaylor (Post 208746)
220 for MS
40 for the intercooler and new outlets welded
70 for the turbo
30 for the injectors
125 IIRC for the mani
20 for a nice DSM O2 houseing that i made a downpipe out of
abour 30 in charge pipes/couplers at most

so just over $500

Damn you are frugal, I guess it helps that you can actually fab up your own DP and other parts. Major props for going turbo on that kind of budget, if I could find a way to go turbo for <$800 I would already be boosted.

bryantaylor 02-04-2008 02:49 PM

harbor freight $100 welder does wonders man

teknikscian 02-04-2008 04:01 PM

i was planning on picking up one of those welders..

ill post pics of my magnificintly effed up welds soon enough =)

SolarYellow510 11-22-2008 11:39 AM

$40 Ebay intercooler piping kits FTW.

And a Harbor Freight bead roller will eliminate the "need" for a whole lot of t-bolt clamps.

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