I am looking to buy a turbo kit sometime in the future but want to do my homework first.

My power goal is 500awhp on pump gas (93), but my car needs to remain daily drivable, a later spool is understandable and acceptable, but Id like to be driving a very powerful sedan, not an ALMS car... The car needs to be able to tolerate a little stop and go.

I am open to any opinions and actually would like to hear them, but the kits I think look like good bets for quick spool and good power are the following,

-ETS Twin-scroll HTA35r (HTA37r?) w/ ETS 4" intercooler
-Full-Race Twin-scroll 35r (37r?) w/ included 3" verticle flow intercooler
-Wait for the AMS GT850R?

There are so many kit choices out there between size of turbo, HTA option, Twin-scroll, manufacturer...

I really am looking for what kit can give me good spool and a top end of 500awhp. Price is absolutely a consideration and these two aforementioned products are not inexpensive, but I realize that you get what you pay for and quality costs something. I have no brand loyalty but I do have some Buschur products that I am happy with, I am located near to AMS, and I have heard great things about Tom at ETS. So let me hear what you all think!

In addition as my car is not built and not ready to accept this kind of power boost, what are the other necessary modifications I need? I know I need an intercooler and piping (I would likely buy this from the company that I plan to buy the turbo kit from), boost controller (I was looking at the AEM digital guage/ boost controller, good idea?), cams, new clutch, fuel pump (single or twin walbro for this power?), and I am going the way of AMS for inital and repeat tuning given their reputation and location. My main question is will I need to replace any engine internals such as new pistions/ rods/ crank? Opinions on any of these parts would be welcome as well.

I know that was a whole bunch of crap to read over but any question in there that anyone can answer would be much appreciated! Im hoping I can absorb a little knowledge on this upgrading process from the community.

Thanks!!!

 

I would wait until CBRD finishes developing that hybrid turbo of theirs. With 58lbs/min it "should" get you very close to your goals. If it spools like it claims we could be potentially be seeing the best mid power range turbo yet.

 

I am looking to buy a turbo kit soon,and my preferences is...
Bushur SS HTA35R
AMS SS HTA35R
ETS TS HTA35R

I want an HTA35R or HTA37R turbocharger not a turbonetics.... so Full Race is not my choice...

 

Some people might say that you can make 500awhp on a stock bottom end safely. Others say you can't. I wouldn't risk it. Thats why I plan to get my bottom end fully built.

Do it right the first time and play if safe, unless money isn't an option.

Lastly, I think any of those listed turbo options can make 500awhp with the right supporting mods and fuel.

Good Luck.

 

look no further then the ets kit, because its awesome work and you can asj anyone about them,they also have one of the best prices for those 35 r hta's.... thats what i am going to get pretty soon. i am tired of my fp green turbo... no top-end...

 

Id say Buschur just cause the price is cheaper then AMS

 

I don't think anyone would say you can't make 500 wheel on the stock stuff, lots of people on here have reliably done it, around ~550-600 i think the line gets a little foggy. If it was my car and I was looking at a 35RHTA kit there is no way I would buy new internals, I just haven't heard of anyone blowing there motor from these kits that couldn't be traced to over revving, oil starvation or poor tuning/crap gas.

Pretty sure 1 255 LPH walbro is good for ~500whp. I'd say stick with that and when tuning keep and eye on fuel pressure. If it looks like you're having a hard time keeping steady pressure at high RPM on your most aggressive tune I would either add in inline booster pump or add another walbro.

 

we can build the 58 turbo now, its off the shelf parts, just custom machining in the compressor housings etc...

there are LOTS of different combinations that can be done..

cb

 

Wait for the 850R

 

BR HTA 35R, Consistant big numbers coming from their kits. BR's build quality is extremely high. Customer service goes a long way, Nick, JRod and the entire crew are easy to work with. BTW Did I mention how sexy their kit is:

 

there will be many more "hot" turbo setups soon im sure..

garrett is releasing some new wheels and configurations, so that will mix things up too.

cb

 

You guys have already been very helpful and this has only been up 9 hours! I forgot to include I want this on pump gas w/o alky or meth. Does anyone have specific opinions on the advantages of the Twin-scroll. Sounds like the HTA is a no brainer but the twin-scroll? I have heard that the twin-scrolls should work but no one has proven it... Also 35r versus 37r? They normally are at the same price point but the 37r will make more power more easily, not worth the later spool? Again, thanks a lot!

 

Gt85 +1

 

I wouldn't go any higher than a 35r in a pump gas setup unless you plan on running e85. The larger turbo's don't really start to make a lot more power than a smaller turbo without turning up the boost. At the higher boost levels these turbos start to come into their efficient ranges. So with that in mind if your staying under 30psi I think 30r sized or smaller would be a better choice giving you much more mid range. If you plan on cracking the whip then by all means use a huge turbo.

I personally think a gt35r on e85 would be monstrous.

 

Your goals are definitely attainable with a 35R variant of your choice with a quality tune and can be done on the stock internals. I've personally been to 599whp at 30psi on the stock internals with one of our original 35R kits and would be happy to help you put together a package to support a build with your goals in mind. Don't hesitate to get a hold of me with any questions!

Tom