310 WHP Interceptor X + Greddy Turbo HOLY S@%*
03-07-2006, 07:06 AM
#27
Ex- member.
Originally Posted by r0tor
either i'm going crazy, or there is something seriously wrong with that dyno graph
03-07-2006, 07:36 AM
#28
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Can you record a datalog of your boost curve with your Interceptor and post a copy of it? We're dieing to see how that external wastegate affected things.
Awesome results though!
Awesome results though!
Last edited by rkostolni; 03-07-2006 at 08:30 AM.
03-07-2006, 11:29 AM
#34
Originally Posted by Hybrid-RX8
Thought I'd share my results from tonight with my fellow RX8 owners... 
Time to go STI hunting..
Time to go STI hunting..
03-07-2006, 11:34 AM
#35
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The problem with that statement is their cars are slightly better performers from the factory, whereas we have to spend a fair amount of money to overtake them. My $0.02.
03-07-2006, 02:27 PM
#41
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Originally Posted by RENESIS_NEENJA
Have you Dyno'd your car yet MadDog? or maybe done a 1/4 mile run? I'm curious. :P
I've been tempted to go get dyno'd, but I haven't done it yet. I want to get an exhaust first. I'd like to do a before and after, but at $65 just to strap it down, I'm starting to loose my willingness to do experiments!
I can tell you this though. I can beat stock STi's by a length in something close to a quarter mile and I think the stock STi is in the low 13's. I run wheel-to-wheel with a slightly modded (catless) STi.
I definitely go to the dyno after installing the exhaust in a week or two. I want to know, too!
03-07-2006, 03:36 PM
#44
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Yeah, I still have the OEM exhaust. I've been eyeballing the TurboXS exhaust, of course. But at a grand, that's pretty steep. There's a guy here in town that will fab a custom 3" exhaust for about $350. I'm thinking of going that route. I mean, for the cost of just the TurboXS midpipe, I 'll have the entire thing. I'm willing to bet that most (>85%)of the gains from the TurboXS setup come from stripping the cat and the 3" tubing - not anything to do with the quality of the Y joint or the mufflers. So the cost savings will more than outweigh the couple of HP that this guys custom jobber might lack.
03-07-2006, 04:34 PM
#46
Originally Posted by BigOLundh
And how do you propose on doing that? You clearly have no idea what you're talking about. You probably don't know where the greddy turbo is mounted, you don't know what size turbo can fit down there. You probably don't know why a bigger turbo will help because than you'ld know there's other ways to solve the issues at hand.
RRRRR, sorry for ranting, but you're an idiot.
EDIT: Oh, and you also probably don't know the real world benefits to having the smaller and "shittier" turbo from greddy.
-hS
RRRRR, sorry for ranting, but you're an idiot.
EDIT: Oh, and you also probably don't know the real world benefits to having the smaller and "shittier" turbo from greddy.
-hS
03-07-2006, 05:17 PM
#47
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Bullseye actually makes a new compressor housing for the greddy turbo that keeps the same hot side and mates it with a t04b compressor wheel, that fits in the current location;
03-07-2006, 05:34 PM
#48
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I'am glad to see the power is getting up there, mine is 284whp with the Greddy. But like your graph my boost falls off too at around 6500.
What I'am hearing is that it's not the Greddy turbo so much as they believe the intake on the engine can't flow enough. I hear there will be testing to compare the same turbo on a
13b, all things being equal..
I hope this does not prove true. Unless someone makes a new intake manifold at a decent
price... Maybe it would be nice so we can have a nice polished intake... We'll anyways that
what I hear...
What I'am hearing is that it's not the Greddy turbo so much as they believe the intake on the engine can't flow enough. I hear there will be testing to compare the same turbo on a
13b, all things being equal..
I hope this does not prove true. Unless someone makes a new intake manifold at a decent
price... Maybe it would be nice so we can have a nice polished intake... We'll anyways that
what I hear...
03-07-2006, 05:47 PM
#49
Originally Posted by Aseras
The greddy turbo is too small ( for big gains on the topend ). fact. it's cfm above 7500 rpm is too low. it may handle 20psi at lower rpm ranges but it isn't flowing enough air at higher rpm ranges
how soon do you get boost? I'd like to see a boost curve
they believe the intake on the engine can't flow enough
the Renesis has the largest intake ports on any rotary ever. They're about the same size as a LARGE street port on an older 13B. Unless Mazda designed the runners small to keep high intake velocity, but then the engine would've had smaller ports.
03-07-2006, 06:00 PM
#50
Registered
Originally Posted by Greddyturbo1
What I'am hearing is that it's not the Greddy turbo so much as they believe the intake on the engine can't flow enough. I hear there will be testing to compare the same turbo on a
13b, all things being equal..
I hope this does not prove true. Unless someone makes a new intake manifold at a decent
price... Maybe it would be nice so we can have a nice polished intake... We'll anyways that
what I hear...
13b, all things being equal..
I hope this does not prove true. Unless someone makes a new intake manifold at a decent
price... Maybe it would be nice so we can have a nice polished intake... We'll anyways that
what I hear...
The turbo is too small to do much more. Scott is doing a great job of getting every last little bit out of it but it's just not capable of much more. Don't get too concerned about the rpm's as much. Think about it this way, would you rather have a 310hp engine where the power peaks at 7000 rpm or would you rather have a 310hp engine that has it's power peal at 9000 rpm? I know that people would rather have the same power curve but have it keep going up past 7000 rpm but from these 2 options I'd rather have a 7000 rpm redline. It is less stress on the engine than a higher redline.
Someone will need to install a nicer larger turbo to get more power and have a higher rpm range but for what this one is designed for, it's pretty good. It may be hard to get a different turbo down in the same spot. It should be possible to do a slight compressor upgrade in the same location but I seriously doubt it would be a huge gain. You will really need to move the turbo to a different location with more room so you can fit a larger one. The turbo manifold is a pretty big compromise from a design aspect in this location anyways.
Just be happy that it cracked the 300rwhp mark. We are slowly seeing the power on these engines go up which keep proving those people wrong who say it can't be boosted without blowing up. It's all in the tuning as has been proven.
Who will be the first to 325? 350? 375? 400? We'll find out yet...