I have complete faith in Demetrios and the kit he is selling. I'll soon be on the list for one myself.

 

Sounds like both kits are high quality.Since both kits have pros and cons, bb vrs. non bb this could be a deciding factor . What type of "service after sale " can we expect from either of these kits.

A-spec is established and I havent heard of any negative things about them .

Reactive Racing also has a solid reputation, but this is the first thing D is going to market .

Not to be negative , but if your going to throw out 3k for a kit it would be nice to have some type of warranty on the turbo and compoents . Jezz even BNR gave me a year warranty on my stage II's and we all know they went up in smoke .

Any feedback ?

 

Sure you will get the same warranty that you get with the HKS, Blitz and Greddy

 

We offer lifetime on the Manifold and such and the manufacturers warranty on the turbo. I'm pretty sure D will be the same

 

Yes all manufacturing ie manifold etc etc is covered under warranty and the turbo is covered under manufactures warranty. And I'm sure this goes for Zero R also if you send apex seal through the turbine chances are the manufacture won't cover it

 

Demetrious,

How would you compare the lag of this turbo as compared to a T78? When does boost come on, and when do you get full boost?

 

How is the car?

 

I'm really glad to see both vendors in this thread and they are both actually getting along and complimenting each other versus some of the other sophomoric threads that are floating around this forum. I would say either turbo would be a great choice. It just seems that they are suited for different purposes. Both vendors are great business men and highly reputable. It's all about what application you want to run to decide this debate. That's how I see it anyway. Best of luck to all of you on this one.

Zach

 

ok, no more teasing! Someone install one of these sets allready!!! Big turbo

Acxk, who woke me up!

 

How would you compare the lag of this turbo as compared to a T78?

Well let me first start by saying many people who intially have come to me and complain about thier laggy T-78 usually are very happy after I tune them. I have been able to get a t-78 on a stock reman to reach full boost i.e 15psi by 4000-4300rpm. With all things being equal the R85 has been able to reach full boost by 3700-4000.

 

I think the term "lag" is being misused again but it's like getting people to say image and no ghost or heat coat and not jet hot, oh well i'll just keep yelling at everyone.

Isn't lag the time from initial boost untill full boost or the rpm range between the two? With that being said: At what rpm does the boost begin or spool delay? This is what interests me the most (BB vs Inconel).

 

But lag for most of us, is far more absolute than your relative definition, of Onset of Boost, Vs. Full Boost... In my Book Lag is calculated, as how much flow (rpm's) do I have to give a turbo before the desired PSI, is achived... to make things less Ambiguous, since some Turbos do better at 15 psi, and other do better at 20psi.. lets say:

Lag = RPM's when Optimal Boost is Achived...

For the twins that number would be a bit awkward, since the transition makes the PSI, number dip, but for all intents and purposes, the stockers, sit at 2500 RPM for 10-12 PSI... since we all know past 14 you're exceeding the compressors's efficiency...

 

I can't believe I even took the bait on the lag question

Obviously everyone has a different definition of lag and no matter how you phrase the answer to the question you will be wrong in someones eyes that is why I tend to stray away from those sort of questions but you know the saying damned if you do damned if you don't.

I am a racer and always will be and the bottom line is I need to travel from point a to point b as fast as I can. Wether I am on the track, sitting next to you at the light, or getting ready to run you from the roll on the highway. I had all this in mind when I designed this kit. Hopefully everyone will enjoy it as much as I do.

 

Well you answered my question perfectly. That is what I was looking for

 

HmmM, what about a BB compressor side and a Inconel hot side w/heat coated housing, water and oil cooled and we call it uhm GTR4085R?

 

Dreams are a good thing to have GoRacer. I would buy one.

Zach

 

Man I love it! Two more turbos will soon be in general usage on the forum! I can't wait to see how they both do. I doubt either one will be good enough to make me ditch my T04S, but ya never know!!!!!

 

Im going to be running the R85. It isnt the exact r85 kit that Demetrios is selling but its the same turbo and hes got alot to do with the design of the kit plus hes doing my tunning. I should have some # soon, my manifold is almost ready so I can get it together. Ill post some # soon.

 

I'm sold on the r85 personally for one reason really. Demetrious seems to be really excited about this kit. I have seen him race his car, plus I happen to think he is a nice honest guy. So like I mentioned Dee, count me in for one this summer for sure. I'll be watching for your dyno sheets allrotor93.

-Dave

 

I spent 45 minutes on the phone with Dee today learning about this kit. I have to say I am very impressed.

 

We should have some GT40R numbers this weekend as Steve Kan will be tuning a GT40R equpped car. No pressure! I'll have additional numbers for my car as well and on a dynojet this time.
Michel

 

Thats not any pressure....

 

I've got a better name the GT485RR with a BB cold wheel and an inconel hot wheel.

 

Technical question here.

If my engine has a street port, and I am able to put out 190 to the wheels before turbo charging. How can I get 469RWHP if I put an R85 on and run it at 1bar of boost? Shouldn't I therotically only be able to get 380RWHP (190+190) at 1 bar. Even then only under perfect conditions?

It does not make sense to get 469 to the wheels unless the engine was putting down 235 before the addition of the turbo.

Can someone explain how and why this works? Am I just missing something here?

 

Porting, Tuning, Larger Injectors, Larger IC, it all adds up... and not just $$ wise... each part allows you to raise the threshold... Larger IC, Gains you more cooling ability so that you don't pre-detonate ... which allows you to run higher boost... so I don't know where you got 190 hp, or how you dyno'd your car without a turbo... N.A. ??? But Basically Every PSI, that you can run, is roughly 7-13 hp last time someone commented on Boost / vs / HP.... and I think that was on the stock turbos... Supposedly Max has a link to a site where you can do a what if scenario with turbos... maybe he'll post it...

Turbos, are like a box of chocolates, you knever know how much of a kick in the nuts, or hot lovin you're gonna get !

Scenario 1) Oh You got me Chocolates, let's head for the bedroom ! (Low Lag and HP out the A$$)

Scenario 2) Dammit are you trying to fatten me up ! (Bucking, Tuning issues, Boost Leak)