Hey sean I was wondering if its at all possible to lighten the internals of the turbo without changing the wheel sizes, hence making earlier spool?

thewird

 

Not really, but there are things you can do overall to a system to improve response. One would be full four inch exhaust, another would be some internal mods to improve flow through the IC. Plus a few other things here or there.

 

How much difference would a full 4 inch exhaust make? I'm assuming my Racing-beat dual-tip wouldn't cut it since its 3". You think my SMIC is any sort of restriction?

https://www.rx7club.com/attachment.p...9&d=1228412543

I'm coming from working sequential twins. I miss my early spool lol. I'll probably get used to it though, I only drove the car 2 days, one at spring pressure and the other at 16 psi. Tuned by me btw

thewird

 

The RB dual tip is extremely restrictive. Trust me from experience.

 

Is this a turbo that you (a-spec) came up with? or is it like a garrett turbo, im curious because this is a bad *** turbo and im selling my rx7 and buying a new Hyundai Genesis coupe 200t in a couple months and id love to see the 500r boosting this new korean car.

 

If I'm not mistaken you'd need two to boost the V6/V8 engines.

 

wow 3 days later and i finally finished reading this whole thread!

few questions..
what is anti surge?
what clutch do you recommend? (since i saw youre not a fan of ACT clutches)

now i need some clarification or input. after reading this thread and parts of the gt35r whats the benefit of this over the 35r? before you flame me, hear me out..

from numerous quotes, people claim 400-450 is the ideal hp target and anymore is useless (well what i got out of it) not both kits are capable of reaching those numbers. now the differences i see is the 500r will be about 2-3% more efficient over the gt35r at the same boost levels, but SLIGHTLY less responsive, 1-200 rpms?

now besides the 2-3% more efficiency why go 500r over 35r? i know each turbo kit is meant for different people, just trying to understand why some of you pick the 500r over the 35r

 

Want a kit made for it I assume your looking at the 2.0T ?

This turbo would be rather large and laggy on that car. But you could get 700+hp with a proper build.

 

Anti surge is the map width groove that makes all the whistling in some apps it helps with power in others it adds a touch of lag. It's main purpose is to broaden the map to the left ie move the surge line over.

Clutches that have worked well with proper break in are spec, exedy twin disc, os giken. Not in any particular order.

Simply put if you want to have close to 35R response and the ability to break 500hp the 500R is the one you want. If you want quick responsive turbo and be in the mid 400's 35R T4 is hard to beat. Though I am working on it.

 

thanks sean.. but i remember you saying about 400-450 is more then enough for the FD does that mean 500hp is becoming unusable power and more for bragging rights?

i really want a nastyyy road course car and it seems like everyone on this thread uses the 500r more for road courses.... but then again havent read up on the gt35r thread yet....

 

You can only get 500 HP if you add auxiliary injection and run more then 20 pounds of boost. On pump gas ONLY your looking at the 400-450 range depending on the amount of boost, setup, porting, tuning, and which dyno you go to.

The same would apply for a 35R, you don't automatically got 400, 450, or 500 HP just by switching the turbo.

thewird

 

Hey Sean I was wondering about the xcessive LIM. Currently the hotsite is almost hitting the stock LIM. Does the xcessive LIM move toward the turbo or away from it. Do you know if it will fit? I plan to use a turbo blanket as well.

thewird

 

Xcessive LIM move foward 1/2" and and out ~1/4".

 

My setup works fine with no fitment issues. GZ LIM, turbo blanket, long runner mani, 500R 1.0.

 

yeah i know.. i have a mild streetport, looking to convert to vmount and getting dual oil coolers, plan on goin AI, etc yada yada yada

whats the avg boost you guys are running?
i was thinking maybe like 12-13psi daily then like 20psi for track days.......

 

14 PSi is the minimum you can run on the included wastegate. I just run 16 PSi. No self control? When I get methanol, its going to be always on 30 PSi. Whats the point of having it if you can't have a little fun once in a while.

thewird

 

GZLIM.... If you have the RHD manifold probably not, though I think I can check here today with stuff lying around.

Running it at 30psi will definitely improve response.

 

I just hope my 550/1680cc @ 45 PSi Base Fuel Pressure + 20% meth is enough fuel for 30 PSi. I might have to run a higher % of methanol up top worst case.

Right now I have the stock LIM and the JDM UIM. I didn't know the JDM UIM would make a difference clearance wise?

thewird

 

I believe Sean is talking about the RHD A-spec exhaust manifold, not the JDM versions of the intake manifold

I need a ride in that car too Marco!

 

So if my manifold is LHD, it will fit Sean?

thewird

 

This should be in big bold letters at the top of every thread!

 

If you have the long runner manifold same as the AFG and Goodfella's then yes.

 

You gave me the short runner so it won't fit then?

thewird

 

Ahhh, that is because you run the SMIC setup if memory serves.

No that one will not fit. The new one I designed last week will it solves the biggest gripes with short runners, ie tight fit on certain T/H's and will work with the GZLIM. However no more Air Pump on these, for obvious reasons.

 

Now that is a nice fit. Too bad you didn't design it before I ordered mine :P

Is this the long runner manifold? I might be able to do a switcharoo

http://lh4.ggpht.com/_gz0_fM-jlGM/SU...U/IMG_0462.JPG

thewird