toroganan

Hi folks
Just want to know the effects of this wastegate placement, car is soso and laggy.. Full boost (9 psi)at 5500rpm, anyway i did a 3rd wot till 8000rpm and then changed to 4th gear but the boost just stayed 5psi (looking at the gauge maybe for 2 seconds)i didnt check what rpm its at but i didnt feel the pull so i just released the gas pedal.. Is that normal or should it spool up fast? Sorry dumb at this kind of things

Car is a b20vtec stock made 299whp surprisingly

toroganan

Cant seem to attach a file, using an android tablet

Muckman

iTrader: (2)

What turbo?

Turbo-LS

iTrader: (4)

Boost leak or exhaust leak will make turbo VERY laggy. Check all charge pipes and exhaust for any pre turbo leaks

xile6

Wastegate don't cause lack unless they leak

wantboost

iTrader: (2)

With no info on your motor or turbo setup we can't tell you if your setup is "laggy" or not...

toroganan

B20b block with b16 head, gt30 dont know what ar sorry, mr2 injectors and its just a stock engine basically. Also its a sidewinder turbo with the wastegate very far from the turbo... Hope this helps

toroganan

Posted some pics at google heres the link, hope it works.

wantboost

iTrader: (2)

That's code for the google app, we can't open that. post pics here.

and a sidewinder has the best wastegate priority of any Honda manifold made. wastegate placement is definitely not your issue.

What makes your setup laggy is the long runners and the long straight section to the turbine inlet flange. the longer runners cause exhaust gasses to slow down and the large runner surface area allows the exhaust gasses to cool down which makes the turbo respond and spool slower. the problem is even worse if the manifold and turbine housing aren't coated or wrapped.

ceramic coating or wrapping the turbo manifold along with coating or using a blanket on the turbine housing will help decrease response time.

m4xwellmurd3r

His link opens fine in the browser. Brings me to his google+ profile page.

And holy crap is that seriously how your wastegate is mounted? That looks HORRIBLE for boost control

m4xwellmurd3r

sleeps

Is it just me or is there no vacuum going to the wastegate?

Also I am sorry to say but looking at the set up and parts used to, you most likely have alot of issues here....

wantboost

iTrader: (2)

That's not a true "sidewinder" that's just something someone tossed together without thinking. and yes it has **** wastegate placement. I can see the vacuum line going to the lower port, what are you using to control boost?

Muckman

iTrader: (2)

Sorry I laughed out loud. Aside from the quality of fabrication, you are going to have major heat issues with the turbine right there.

-That looks small for a GT30. Ebay?
-Those welds will eventually break, especially the long dump tube.
-The two layers of mesh certainly isn't helping inflow to the turbo.
-I suspect exhaust leaks pre turbo either at the flanges or welds.
-How many times did you attempt to fix/reflange the upper charge pipe? You need to check for boost leaks.

wantboost

iTrader: (2)

Oh **** I didn't see two layers of mesh lol.

I was about to say it looks small for a gt30 but they do make a journal bearing t04e housed gt30 (namely precision I think, there was a Garrett version at one point)

I'm not sure why the dump tube is so damn long either.

the whole point of the traditional sidewinder was to allow the use of a full sized radiator and ac with large turbos. they were also designed for shorter charge piping through the use of an intercooler with a same side inlet and outlet (either vertical flow cores or dual pass horizontal)

Seeing as how you neither have a traditional sidewinder, nor a large turbo, nor a full sized intercooler, nor a full size radiator, I don't know why you still have that manifold (i think I see an ac compressor and heat exchanger, not sure)

the design is poor as is the execution. you'll have nothing but problems with it and there are much more reasonable and better performing manifold options for your build.

also since you don't have any form of boost control your turbo will be slow to respond anyway. With no boost controller as boost pressure builds the wastegate gradually opens, well before target boost pressure is made. this results in slow response.

also that cheap piston type blow off valve is probably leaking... they all do.

also the dual layered mesh is a huge restriction. mesh has far less surface area for air to pass through than a normal air filter. restriction at the compressor inlet means reduced airflow overall, slow response, less power, problems making target boost pressure.

then add in that you have the blow off valve and wastegate running off of the same vacuum source and you've got another problem... the bov, fpr, and wastegate need their own vacuum source. especially the wastegate, it needs a large diameter signal line after the throttle body on the intake manifold.

your setup has tons of issues, resolve those and you'll see better performance overall.

toroganan

Yea the turbine is slowly melting my radiator hose, and stock map no boost controler just a tune with crome, who makes a good sidewinder manifold coz i cant seem to find one.. Tried looking online anywhere but no luck

wantboost

iTrader: (2)

Nobody makes them anymore... they dont serve any purpose and like I've said before your setup doesn't need one. get a normal manifold.

ok that's not completely accurate, hytech (who made the original viewfinder) will still build one if you have 5,000 dollars laying around.

but again, your setup doesn't need one and the manifold is only causing more issues than it's worth and it's actually hurting performance.

toroganan

All china parts haha, do i need to run the vacuum line from bov to the throttle even the bov is slightly open at idle? And what shoud i do about the mesh, those are just screen and a chicken wire

toroganan

Will the turbo fit on the front of the engine with a top or bottom mount manifold without removing the fan of the ac

wantboost

iTrader: (2)

You need a real filter
The blow off valve needs a vacuum/pressure source
Yes they make ac compatible manifolds, especially for a t3 t04e turbo.

Muckman

iTrader: (2)

Test without it. Plus check everything else we mentioned.

grumblemarc

iTrader: (4)

I wouldn't laugh. WTF am I looking at? It took me literally half a minute to spot the turbo.

LTCxD2B

Looks like a mini ram with a pipe extended to the turbo .... I have a serious question... What does ur oil return look like?

wantboost

iTrader: (2)

His oil return has nothing to do with his problem. given the turbo placement his oil return can't be anything other than a downhill run to the oil pan.

m4xwellmurd3r

Oh ****, I was so focused on the wastegate and miniram manifold being called a sidewinder I didnt even SEE the turbo! That makes that setup even more ridiculous looking. Why would anyone route a pipe from a miniram like that. It would be better to just run a freakin ac compatible cast manifold.