I've been recommended to go with a turbonetics racegate... I want to run about 14 psi on a 60-1 hifi.

They are like 400 bucks though.

What wastegates will be good for my setup?

 

I bought an HKS standard for about $375, and it works very well. I've heard that the Turbonetics wastegates tend to go bad.

 

you can find a turbonetics on ebay for like $175
i went with the racing hks from rx7store its a 50mm real nice unit for around 376

 

I recomend either the Greddy or HKS wastegates, me and my friends have had really bad experiences with the Turbonetics gates, it seems that they don't take the exhaust temp of a rotary too well and they have gotten stuck on some of my friends, and you know what that means. Not to say that Turbonetics wastegates are bad, I just think that they're not good for a rotary, but for a piston motor they work good due to the temperatures not being so high.

 

im not a big fan of turbonetics gates either. several of my friends piston and rotary alike have had problems with them. ive never heard any complaints from HKS users, including myself and ive also heard great things about the TiAL gates

 

HKS all the way

 

How about TIAL??? I have heard nothing but good things and supposedly they have a 50mm wastegate now, but from the prices you guys posted, the TIAL seems a little more expensive..

 

turbonetics wastegates/racegates have a tendency to fail due to the temps experienced when being bolted to a turbo fed rotary engine.

The tail one is more than the HKS one cause it is a larger size.

 

TiAL?

 

tial/tail close enough

 

hmmm thought it was a company and not a typo, cause of how two people were talking about it

 

I have the HKS 40mm but I have yet to use it yet, I heard good thinkg about the rest of the HKS wastegates, butin this matter for Enzo250, I know alot of people that like the Tial wastegates. Im either gonna pick up a Tial or a HKS racing wastegate. I also hear alot of people being very very happy with the Greddy wastegates so, Its basically take your pick.

 

I have the HKS 50mm and love it. No problems at all.

 

I have heard alot of good things about TIAL wastegates....
On my new setup I will be using a TIAL 60mm....

 

Do all these wastegates have a standard flange boltup pattern? Reason I ask is cuz I have a Deltagate, and would rather have a HKS or something better ... can the others bolt up to the downpipe flanges I already have?

 

I know that HKS, Tial, and Turbonetics have different flanges. You can just buy an HKS flange and replace your flange with it.

 

Tial 46mm is what I have. Most people I know that are on the track a lot run tial wastegates if they didn't buy a kit with another wastegate.

 

I would Recommend that all high HP RX7's use the Tial 46mm Wastegate. At the moment there is no better wastegate.

 

and why would that be? what makes it superior to the rest of the wastegates out there? or is it just YOUR opinion that it is better than all the other ones you have/haven't tried??????

 

personally on my race motor i'll be running a pair of locally made 40mm wastegates, one per port to turbo runner

 

Yes, Tial is Superior. There's no doubt about it. I've been using them exclusively for the past 4 years.

H.K.S

• Lower Section is cast iron
• Seats are mild steel
• Tops are cast aluminum (untreated)

Problems while running with leaded fuel because mild steel seats will corrode and fuse the valve to the seat... This will create a very dangerous overboost condition... Yes it has happened to me.

Tial:

• Lower section is stainless
• Seats are stainless
• Tops are anodized and very well protected

Tial will not corrode over the coarse of time and will outflow H.k.s.

Funny thing is the smaller tial(40mm) already flows better then the hks. The Tial 46mm is the best wastegate on the market.

 

i am pretty sure my pair of 40 mm wastegates will out flow your 46mm tial and cost less for the pair aswell

its the beauty of having skilled machinist who are mad keen on cars.

 

Turbonetics's wastegates are designed with a two piece valve that are pressed together to form one peice. That design under high heat always seem to fail! Turbonetics just released a new improved design of wastegate. I still won't reccomend using their wastegates though.
If you're looking for flow, HKS has one of the highest flowing wastegates on the market presently. It's called the GT Wastegate and it features a 60mm valve! Just about all the 2000hp turbo V-8's are using them. The wastegate attaches to the manifold via v-bands!

crispeed
87TII
9.20@150mph 1/4
5.91@118mph 1/8
1.32 60ft
2600lbs

 

Some people try to tell me that the HKS GT is a bit overkill. But with a well ported motor, and when not running full boost, ill never worry about a boost spike!

Got a hellova deal on it too. Cost me as much as my old HKS 40mm.

 

V Bands? mind explaining for the weak minded
Hopefully I'll understand more once I read more of Maximum Boost, up to page 30, im going slow but I only have time in school when i have no schoolstuff to do and I try to understand it the first time around
Already proving very useful :-D

and btw would a rotary go under four stroke or 1/3 stroke or 1 stroke. I was trying to figure that out. I'm talking literally what they would be, not just classification