question for those running a flipped TB intake manifold

JesterMX6 · Post by **JesterMX6** » Dec 02, 2011 2:43 PM

I think this applies to the B34 and B35.

I've got a reverse TB intake that i'm going to be running on my b35. Does anyone have a schematic or pictures of throttle cable routing?

Maybe its just because i havent actually installed it yet but i'm having a hard time seeing the best way to route the cable without sneaking it between the intake runners somehow.

Shadow · Post by **Shadow** » Dec 02, 2011 5:12 PM

It's actually in a e30 but I got to use the stock throttle
cable this way.

jim325 · Post by **jim325** » Dec 04, 2011 8:27 PM

Where did u get the bend u have welded to your intake manifold. Also was the plate bolted to the tb bought (if so where from) or did u make it? I am going to start changing mine like u have yours and it looks like putting a bend on would be better then welding the tb to the manifold.

Shadow · Post by **Shadow** » Dec 05, 2011 2:40 AM

oh man. lol

Read your posts, and think hard before hitting submit.

It's a 3'' bend. Google 3'' 90 bends.
Summit, Jegz, Vibrant has them.

Flange was hand made.

So you have your throttle body already welded on?
Just keep it like that and splice together a throttle cable
since it's already jangked up.

jim325 · Post by **jim325** » Dec 05, 2011 10:19 AM

haha. Yeh it was late... It's not welded yet. Only intake manifold with the tb on the other side that I recall was goodntights n his is just welded to the intake(if I remember correctly). Yours has the bend. I'm just trying to decide which would be better/easier to route intake tubing too before I actually get stuff welded.

JesterMX6 · Post by **JesterMX6** » Dec 05, 2011 5:14 PM

shadow thats a great shot. thanks. i'll have to find out what my options are with my particular manifold.

Post by **Nebraska_e28** » Dec 06, 2011 9:00 AM

Looking good!

jim325 · Post by **jim325** » Jan 27, 2012 11:23 AM

Finally got my manifold welded up to put the throttle body on the opposite side.

Uploaded with ImageShack.us

Uploaded with ImageShack.us

I think the costs were about $16 for the 3" 90degree cast aluminum bend off ebay. $18 for a 12X12 inch 1/4 thick sheet of 6061 aluminum off ebay. And $50 to get it all welded together. If it doesn't rain this weekend ill hopefully get it put on. Still need to drill a hole for my brake booster line fitting and try to find a squirrley hose to attach to the original icv port or drill a new one, which i'd rather not do.

jim325 · Post by **jim325** » Jan 30, 2012 8:19 AM

JesterMX6 · Post by **JesterMX6** » Jan 30, 2012 9:02 AM

jim325 wrote:
I think the costs were about $16 for the 3" 90degree cast aluminum bend off ebay. $18 for a 12X12 inch 1/4 thick sheet of 6061 aluminum off ebay. And $50 to get it all welded together. If it doesn't rain this weekend ill hopefully get it put on. Still need to drill a hole for my brake booster line fitting and try to find a squirrley hose to attach to the original icv port or drill a new one, which i'd rather not do.

any chance you could post links to the auctions or sellers you bought from? always nice to go with an ebay seller that someone has had good luck with.

jim325 · Post by **jim325** » Jan 30, 2012 9:42 AM

just-intercoolers for the 3" aluminum elbow. This one took a little longer than expected to ship.
exact_metals for the aluminum plate- was actually about $17 plus $11 shipping. Shipped really fast.

JesterMX6 · Post by **JesterMX6** » Jan 30, 2012 10:29 AM

jim325 wrote:just-intercoolers for the 3" aluminum elbow. This one took a little longer than expected to ship.
exact_metals for the aluminum plate- was actually about $17 plus $11 shipping. Shipped really fast.

much appreciated. i'm doing something similar, though i'll likely make it a bolt on rather than weld on.

jim325 · Post by **jim325** » Jan 30, 2012 11:21 AM

If I did it again or if I ever have it changed I wouldn't do a full 90degree bend. Maybe more like a 60-75 or something.

Kenny · Post by **Kenny** » Feb 03, 2012 11:20 AM

I did mine like this, I wanted to increase the plenum volume a little and hopefully improve air distribution.

plug the other side with the piece from the back (I like the "3.5"):

Post by **mooseheadm5** » Feb 03, 2012 11:32 AM

That is super cool. And, I might add, nice welding skills!

ElGuappo · Post by **ElGuappo** » Feb 03, 2012 4:58 PM

Wow that's badass.

marc79euro645 · Post by **marc79euro645** » Feb 03, 2012 5:42 PM

Very nice!

JesterMX6 · Post by **JesterMX6** » Feb 04, 2012 12:40 AM

that looks really good.

i ordered myself an aluminum plate and 90deg elbow. once i get everything measured out i'll cut the elbow to where i want it and get the plates drilled etc.

Kenny · Post by **Kenny** » Feb 04, 2012 12:08 PM

Thanks guys!

It's for my twin turbo project- it's an E34 not an E28 though so I try not to troll the forum with OT projects posts.

I still hang out here a bit because of all the M30 love of course.

demetk · Post by **demetk** » Feb 04, 2012 12:15 PM

Kenny, if you have pics of your turbo install, please post a link or post them here.

JesterMX6 · Post by **JesterMX6** » Feb 19, 2012 11:46 PM

bump.

same crowd, different question.

i've got some stuff hooked up:

Throttle body mounted, cables all run.

Here's where the two cables meet.

anyone have any ideas on connecting the two cables together? i used a 18gauge butt splice just to measure 0-100% throttle but after about 5 throttle punches it comes loose (no surprise there). I know you can get some connection thingies for 10spd bikes that might work. any other options?

turbodan · Post by **turbodan** » Feb 20, 2012 12:27 AM

Thats going to be a chronic point of failure. You may have acceptable results with lead solder if you wind the two cables together and overlap them a fair amount before applying solder. You will need to spread the load out as much as possible for that to work.

Ideally you would find a way to route the cable that doesn't involve attempting to splice additional cable in. Thats never a good idea.

Shadow · Post by **Shadow** » Feb 20, 2012 12:28 AM

Crimp them together.
I think a bike shop could do it for you.

Like this.

http://www.pet-dog-cat-supply-store.com ... 185825.jpg

JesterMX6 · Post by **JesterMX6** » Feb 20, 2012 2:08 AM

i'll take all that into account.

i'm looking at alternate ways of routing the cable still but so far haven't found anything acceptable.

the crimp method should be good from what research i've done. if its strong enough for a brake cable, it should be fine for a throttle cable. i just need a bit longer cable for it to work properly.

thespeedfactory · Post by **thespeedfactory** » Mar 04, 2012 12:22 AM

Ideal situation is to run new cable and crimp/solder either the hook on the pedal or the t bar at the throttlebody. I used a mechanical connector when it was on mine for 4 years and no issues. Just make sure that the crimp is far enough away from the far fitting to not interfere with WOT. Looking forward to seeing your build complete.

I have to take 2 years off of my build for my time in Korea, until 2014 I will have to live vicariously through the builds of others.

Found a pic of the topside plumbing from my 3rd build, FMIC and a T61.

JesterMX6 · Post by **JesterMX6** » Mar 05, 2012 11:15 AM

i never did update this thread. my apologies.

i grabbed a Swage tool and got things going temporarily.

MyE28.com DEV

MyE28.com DEV

question for those running a flipped TB intake manifold

question for those running a flipped TB intake manifold