More power=more lag..2860-5s are plenty powerful enough when set up right
agreed..im well happy and im only running 1.4.602bhp at 1.4 bar is very respectable especially considering -5s are almost as responsive as stock turbos.Cant say enough good about these turbos..ultimate set up for the street.More power=more lag..2860-5s are plenty powerful enough when set up right
so that car is estimated at 905 at the crank? I know you know your stuff, and I'm sorry, it simply just doesn't add up. Every factor that could make it happen - insane headwork, big displacement, ludicrous boost pressures...you've said were not the case. I know how much air has to flow for 900bhp, and 2530-based or not, the turbo size to push that much air just won't fit onto stock or stock-type manifolds. You didn't rule out nitrous, but the dyno chart clearly has no NOS on it. It just looks like what you'd get with a T51 Kai....or a pair of T04z.Im still sticking to our claim of 905hp with modified lowmount 2530's btw, I guess all the non believers can just read the article in HPI.
As MrGT says you can do this with an Apexi AVC-R (I've got one).Is there a high-tech boost controller where I can plot in a curve and set target boost versus RPM?
Yup, And tell him he can't drift for shit!!Toby
Im over the arguing ok ....
For the thrid and final time I dont really care what you think ok ...as in this instance you are 100% wrong, and with respect , you have been wrong before,
The exhaust housings are 2530's ok ....
Pump gas (98)
The additional power has come from some very clever unshrouding of the valves and a few other mods to the head and throttle body spindles.
Would you like Carls phone number ?
I posted the dyno sheert , and then all I got was "what a dog" which it most certainly is not, this is a tarmac rally / race car , not a drag car and the power delivery is exceptional to say the least.
If it was a dog we would start again .....
Carl Ruiterman - Driver Profile -- Performance Car | Modified drift, drag and import machines
Email him , tell him hes full of shit ....
well there we go! Still curious as to how 2530 housings can push that much air, but I guess that's where the "modified" aspect comes in. If I had to guess - the wheels, the pitch of the fins, the ratio of the small compressor wheel to the larger one (can't recall the terms) are set to maximize flow at the expense of spool time. I recently read up on wheel design and ok, if you went to a particular extreme, you'd flow more air but the lag would be a bitch.The additional power has come from some very clever unshrouding of the valves and a few other mods to the head and throttle body spindles.
see, that's where I'm suspicious. There's some kind of sandbagging here. He's found a way to lowmount large twins, and isn't divulging how. Big kudos for getting 800bhp out of lowmounts, but I call bullshit on them being anything but extremely distantly related to a 2530, whatever they actually are. I think mentioning them as 2530 "related" is disingenuous and highly misleading. If they were called "lowmounted 3037-type hybrids" then 850bhp is far more believable. But saying "2530" and "850bhp" in the same sentence is either trying to show off that you've got some magical tuning ability, or are again, trying to sandbag.
I'm just hung up on the turbos being "2530-derived".
750 wheel horsepower - those aren't 2530s, even if they were originally. Those are more like GT-RS numbers (same exducer, bigger compressor), although I think someone would be hard pressed to make 750 at the hubs with GT-RS turbos.
Must have a 2.8 stroker, and some serious head work. And those compressors must be a damned sight bigger than 2530s. There's no way I'd get close to 750 at the hubs with my car even on 100RON pump gas
Oh, hey this isnt some kind of dumb ass trap, whereby which I comeback with some other shit.
Ill double check the turbo's, but Im 100% sure of what they are......
Same car was making 460AWKWS before the throttle body and head mods, but would not blow more than 1.5 bar as the boost controller was topped out.
I shouldnt think the dyno sheet would be too hard to find.
Ill try and sort it tomorrow.
It is not rocket science, just a bigger compressor wheel (I would assume)... more air, more power. Combined with head mods the engine can use the extra air to make more power.