one word...

PICTURES!!! I wanna see this thing!!!

 

i definately agree

 

i think AMS had the gt30r kit listed as a street/autox kit and the gt35r as a street/strip kit.... you think @3500 rpms its still better/stronger than stock?

-shahul

 

most aftermarket turbos will produce more power over the rpm band even though the boost isn't 'as high'. The reason is, although you may not see as much psi, or kpa, the amount of air being forced into the engine is substantially greater. One cubic foot of air at 10psi and ten cubic feet of air at 10psi are drastically different. This is why larger turbos are faster than the stocker, even with increased lag.


*edit * that's also why he's making well over 400whp at only 17psi. The stock turbo would only make about 300-330whp at 17psi tops.

 

at 3500 RPMs I would almost guarantee this turbo is as strong or stronger than my stock one was, just so you guys know I dyno'd at almost 375 WHP on a Dyno Jet Dyno with my stock turbo, I can post the dyno graphs if you would like, also I was running ~380 ft/lbs if I remember correctly, on that same dyno I would expect right now as is with no tuning my car is running ~430-450WHP, it's hard to tell because it doesnt feel like it hit's as hard but the RPMs fly like no other once you hit boost. I would have to say that at 3500 RPMS I am making equal or more WHP than I was on the stock turbo

 

Oh, by the way about the pictures, I will have pics and dyno slips by tues of next week at the latest, im hopin to get it down to the dyno on friday which would make everything happen much sooner

 

Just to keep you guys updated, I had a little trouble as far as dyno slips go because I put the ignition harness for the e-manage on the car, took it for a test drive, got home and my coils were fried So, I replaced the coils today and tuesday i have an appointment to get the car dyno'd and tuned, 2 hours of tuning hopefully we will be able to work out a pretty good slip even without the ignition harness no timing control will kind of suck but i will see what i can get out of it. dyno slips should be up tues night, pics as soon as i find a digi camera, anyone in colorado have a digi camera and interested in taking pics lol

 

No offense intended en1gma19, but the explanation/example you give of your reasoning is misleading. When you give the example of 1 cu. ft. vs. 10 cu. ft. at the same pressure, you are trying describing "amount of air being forced into the engine" in terms of volume. However, it is far more correct to think of the additional air in terms of mass, or number of molecules, and the biggest contributor here is not so much the increased volumetric flow rate from the aftermarket turbo, it is the increased overall efficiency. The difference may seem subtle, but it's not.

The additional power is available for one or both of the following reasons:

• More efficiency in the compression process
  
  The aftermarket turbo might include a "bigger" compressor, or maybe even one of the same size (probably not as common or likely). Either way, if the aftermarket compressor is operating more efficiently than the stock unit at the same outlet pressure, it is dissipating less of its input energy into heat.
  
  This translates to higher density, since air (under these conditions) can be treated as an ideal gas, where pressure = density * gas_constant * temperature. For the situation we are discussing, outlet pressure is the the same between the two compressors, while the outlet temperature in lower in the aftermarket turbo. Greater density means more air mass (more air molecules).
  
  Now, assuming we are holding intake and exhaust manifold pressure the same in both cases, the differences in compresser outlet temperature won't translate to considerably different amounts of air volume taken in during a cylinder's cycle -- it will, however, translate into more air mass taken in.
  
  More air mass taken in means more fuel can and will be added (assuming of course, your ECU and fuel system are correctly programmed and sized, respectively for the boost points we're talking about), thereby making power.
  
  
• More efficiency due to the turbine/exhaust side of things
  
  A turbine which is causing less backpressure for this boost level, whether it is more aero/thermodynamically efficient at this operating point (because of its physical design), or because less work is being demanded from it due to a more efficient compressor, is leaving more power available to drive the crank. Less power is absorbed from the exhaust stroke pumping the waste gas against the backpressure.
  
  Depending on the amount of overlap, the cylinder pressure at the time of intake could be lower with reduced backpressure. This would indeed lead to more volumetric flowrate, but it is not a "substantially greater" amount of volume flow -- not nearly enough to account for the majority of the increased power.

 

Good looks. I have their 50 trim kit ordered. Just waiting on the turbo. That's interesting about the Buschur lower pipe. How did it not fit? Let me know if you have any other info on it as I have the same intercooler as you.

 

I really wanted the RNR GT35R kit, its amazing and appears to be great quality.. But thanks to some unexpected expenses, I just can't afford it.

I did want to add one thing though, this kit appears to be a bit more drivable than other similar setups I've seen. And although its expensive (with the equal length manifold, which I recommend), its definitely a bargain compared to the others out there.

Its frustrating for me to really be interested in something and not be able to afford it.

But thats besides the point, there are a few things you need to keep in mind, there may be a little modification required to get everything hooked up, specifically you may have to make a custom intake pipe, and modify the lower pipe to fit with the Buschur intercooler.
other than that, I really like the kit from its looks, the research was put into its design. And the guys will answer any questions you need answered.

 

Yes, the kit is very drivable, the car is my daily driver and i have driven around 1000 miles with the kit on and it has been just as easy and fun to drive as with stock turbo. as far as the lower intercooler pipe, the black buschur pipe with the heat guard on it does not fit at all because it is angled to fit with the stock turbo, so you will have to make a custom pipe to fit that area if you do have the buschur IC pipe kit. also as far as RnR racing, I have to say that I have done business with a lot of places but they are by far the most helpful of anywhere that i have done business with, any questions i had they answered almost immediately and they were very helpful. their turbo kit is great quality and so is their exhaust, i have both and i love the way their exhaust sounds, it's quieter at idle than my 5zigen was but it's the perfect tone both at idle and at WOT. if any of you are looking at turbo kit's, i would suggest RnR's their kit is amazing. also, i do not have the equal length manifold just so everyone knows

 

I agree, Jack. RnR's turbokits are absolutely gorgeous and everyone that has had the chance to come by one has loved them as well. I'm so anxious to get my kit here! I'll be doing a humongous writeup with tons of pics, dyno sheets, datalogs, etc.

I spoke with Ryan about a new intake. I currently have the AEM intake which I'll be selling. I got my hands on a Dejontool 'no maf' intake for when I get my EMS along with it. Dave said the coupler will fit over the 3" compressor inlet of my 50 trim. As for the Buschur lower pipe, I dunno what i'll do about that.

 

I'll gladly take a free kit.. But back to your point, I suppose you can get a nice pipe bent up by a decent muffler shop, and have it high-temp coated. Those were the immediate issues that came to mind when I was doing the research.

Its nice that the guys who've already gotten the kits are so happy with them. RnR are definitely the underdog at the moment with their great prices and nice products.

Unfortunately for the time being, I got a JDM Titanium turbo (not the TME) since I already had the JIC stainless "Stock replacement" twin scroll manifold and DNP O2 housing.. So this setup has to keep me happy until I can once again afford to do a full turbo upgrade.

 

I like that kit but why is its way expensive compering to the BR 580 kit

 

ball bearing turbo