Tial, precision, or synapse?
 

So looking at wastegates. Im debating between a tial MVR 44mm, precision 46mm or synapse 50mm. There all within a few bucks of each other. Just looking for some opinions of guys that have ran them. And this will be with a larger BW turbo. I wont be running less than 15-18psi at any givin point so im thinking the 44mm would probly do it but just looking for opinions. Thanks

I just finished up my S475 build and went with dual MVS 38mm and I love them. To me TiAL's craftsmanship is unbeatable and there a proven setup time and time again. Not to mention the 38s are extremely compact which is nice when you dont have a lot of room to work with like when doing dual gates. The now standard water cooling on these is really cool also. TiAL FTW!

i have a synapse 50mm for over two years, never had boost creep, works flawless.

out of those 3 i've only run Tial. No problems always worked great

What about HKS?

Rich man jk. Kinda forgot about HKS but there always more money:lol:

i'd get one of the ones you have listed simply because of the vband hookup. the 4 bolt hks,greddy etc are kind of a pain

Yea I guess I didnt think of that. Its definitely going to be vband. The new exhaust will be all vbands also.

nearly everyone i race with uses tial and have never heard a word of bad quality or any faults. they are the best. recently i've been hearing of precision WG's being as good as tial. but haven't seen any use of them on the track to say if they work or not.
if space is limited then tial is for you, they have the most compact WG's by a long shot.
the 60mm is a beast, i had to try a couple different set ups to make it fit. 50mm is a good size but dual 38 will out flow a 60mm but they take some creativity to plumb them back to the downpipe. screamer pipes are easy.

Tial FTW

All of them will work fine. The synapse is a little more confusing to route boost control because it has a few extra ports on it but it works well.

My Synapse has held my HX40's boost down to 9 psi without any creep at all. Now I just need to get my pos ebc to work so I can crank it up.

I am a big fan of TiAL, we run the 44mm on our 13b-re with a GT35R and the 60mm on our 20B with the GT4202R, both have performed flawlessly since day one. Also run their BOVs on both cars.

I have a Tial 46mm but I really like the Precision 46mm http://www.aptuning.net/Precision_46...0wastegate.htm $300 and it comes with all the springs you would really ever need. Not a bad deal. Would love to hear some feed back from someone that has had experience with the Precision wastegate.

I have a Precision 46mm. Not installed yet. Looks very well made.

Ok guys precision or synapse??? Make up my mind for me! I ruled out tial because I dont want to buy any springs! I cant make up my mind!!!! AHHH!

The Tial 44mm I carry comes with every spring. No need to buy other springs.
I don't think you can wrong with any of those waste gates

same with the precision i am running, its a 46mm v band wastegate that came with every spring to make it any boost level you wanted

Is your motor balanced or clearanced? Specs of it?How do you like the precision?

Thanks jason I think I'm going with the precision though.

Tial would be my only choice....

Has anyone noticed that the precision stuff looks very similiar to the tial stuff?

except it's made in china...

I find it hard to believe that the company who makes the best turbos on the market has knock off wastegates without some form of proof.

Went with a Tial 44mm MVR.

I only use Tial

Best turbo's on the market huh? that's pretty funny.. What OEM do they build for again?
Last time I checked the leaders are Borg Warner and Garrett.

So they're only good if they build for OEM's? That's right, all OEM's ever care about is putting the highest quality part on the car, not the price or anything. Maybe Garrett has economies of scale, which I'm sure they do. Doesn't mean they produce a higher quality part.

Has nothing to do with having engineers and a proper facility to actually perform r&d.
Precision is backyard in comparison.
Just curious do you see any precision turbos in lemans or WRC ?

Precision has come a long way and have started making decent turbos but to say there the best in the industry is a joke.

Just last nite I took a PT74 off a car and put on a GT37 (which is only 67mm) and made 75 more hp. Precision for the win. :lol:

I wont even get into the stuck valves or broken diaphrams on there Chinese copied wastegates.

i run a HKS 44MM with no boost creep or problems, but if i were to build a kit again i would but a Tial kit that Jason caries. from the cars that ive worked on the Tial is flawless and gets the job done. also as Jason stated the Synapse is a great unit just a little confusing when routing, but you cant go wrong with any of the choices that you have listed.

hey guys i have a tial 44mm wastegate and with the previews set up was working fine holding boost and stable but with the new set up a born worgner s472 the boost its creeping should i go with a bigger gate people are telling me to go 60mm should i really need to go that big.thanks

Either run two 44mm gates or one 60mm and you'll be fine..

I knew it was only a matter of time til the hype was over...

i was thinking on that since i have another 44mm in the garage but i though that it was going to be overkill but if i remenber right you was using two 44mm gates.thanks

They hyped them up pretty good it's going to take a while for it to be over.. :)

i took the 50mm synapse i had off since 1. it was extremely confusing to use with an EBC, 2. the 2 halves separated and i had to send it in to synapse for refurbishing (great customer service btw), 3. i just wasnt happy with it.
like i said, Synapse has excellent customer service and they helped out a lot and explained to me in great detail how to use the ports, and all that jazz. it sits on my shelf now.

i went with the precision 46mm and it holds rock solid. i changed out the springs and i am running the 12psi setup (no ebc, straight off the compressor) and when the car hits the 12 it opens flawless and no matter how hard i run it, it will hold. i am looking forward to putting the EBC back on and letting Steve Kan finish off my tune with this WG. I am very satisfied with the precision kit and it is a well built unit. and i am not getting paid for this!!
i cant say anything about the Tial but a lot of people use them with no issues, so they gotta be good stuff too!

I used a synapse and it is not so good.
The piston is loose... and doesn't shut perfect anymore.

When you push the piston in you feel a point where you need to push harder... and after that point it slides bether.

I used an AVC-R at first and it was hard to get the boost smooth.
The I installed a Link RX ECU. Boost controller function off. It was stable.
But with the boost solenoid at lets say 30% duty cycle the boost was all over the place.
This is the seccond synapse in 3 years.

Now I'm going for a 44mm MVR.

Tial.... and listen to Enzo & Banzai.

That is all.

I have a different experience with synapse gates. ...Had no problems what so ever and the car came with a synapse 50mm gate... put 11K hard miles on the car.. Held boost perfectly till I had an oil control ring failure. Previous owner put 15K on the car...don't know how hard he drove it..but I sure as well beat the crap out of it...

Now i'm runningdual synapse gates on my new set-up =-)

pic of the new set up just because I love pics
http://i804.photobucket.com/albums/y...d/IMAG0483.jpg
http://i804.photobucket.com/albums/y...7950814145.jpg

I might as well add JGS to the debate. I can only personally compare it to tial (only two brands I've had), but the JGS 50mm I had on my last car was very good build quality and solved my boost creep issues that the Tial 44 mm had (both use the same input flange). I personally like JGS over Tial. I also like that it doesn't use a diaphragm.

Ive decided to run a single gate for space savings. Will the tial 60mm be enough though? I dont plan on running low boost so im thinking it will work.

You added a larger wastegate. Despite the flange, it will still have more flow. I don't see how this relates to the Tial not performing. Are they cheaper?

I have also heard good things about Synapse. Jason sells them with his kits on Rx7store with no issues.

With cost, Tial is American made. As such, they may be a little more expensive. Their customer service is top notch. I just did a spring swap on my 50mm BOV as the 10psi spring was causing surge. I mailed them mine and they sent me another for free. They even included a spare allen bolt.

That's my point. With the same flange as Tial, you can get a 50mm, non-diaphragm, American made gate. The piston also rises higher, and the body of the gate is larger, both of which I think helps.

JGS used to be cheaper than Tial, but now I think the smaller tial MVR 44mm gate is ~$20 cheaper now. I asked a lot of technical questions and JGS got right back to me as well as sent me springs quickly, etc. So they have good customer service too.

Here's a link to some comparison pics: https://www.rx7club.com/single-turbo-rx-7s-23/50mm-jgs-wastegate-vs-44mm-tial-pics-894682/

Just thought I'd toss another gate in the mix; it's a good quality, high flowing, gate that few people ever mention on this forum. I don't have any issues with Tial (I have one now), but the JGS gate is better IMO.

Ah... I see. Thanks for the info. Definitely sounds like a good option then.