evo8vz

for some reason no record breaking cars in drag seem to have Borg.....not an Borg nut swinger I like to buy everything and dont think its the best because I OWN IT.

but dont see stm, buschur, ams, awd, er, and other traditional well known evo shops use them mostly road racers with the new efr line up.

6870 prob the way to go but got a 99. On the other car used a Xona that is similar to a 6466 on a 2.3 and I feel that a 6466 would have been better off. Both cars will be on the dyno in the next coming few weeks.

Xona car trapped 132 at 28 psi on 91 oct which isnt bad I guess but yeah there is a reason why Xona turbo arent selling like hot cakes.

@01sporty

My set up

FF .84 T3

CBR Extreme port im and 70mm throttle
ported head with Kelford HL 284

Hopefully it can make 900 on the 99 plan to push it to 46 psi to 50 psi

2winscroll

That is true and in my opinion it's because there is no money in selling this line of turbos, also everybody wants a ball bearing turbo. The BB turbo spool differences are negligible IMO. Twin scroll is, on the other hand, going to spool significantly faster than SS. I'm not saying the super 99 or 6870 arent great turbos, I just can't justify spending almost 3 times the money for a turbo where the only real difference is ball bearing design. I know guys who have bought these turbos and end up cutting corners elsewhere,(like buying used/old parts) when the money saved on the turbo could have been better spent on other parts for the car. If you have an unlimited budget well then go right ahead and get yourself a $2600 turbo. I'm not really a follower of what everybody else is doing, just trying to get the best deal for my money.


http://www.jegs.com/p/BorgWarner/Bor...40656/10002/-1

2winscroll

By the way a double pumper setup will NOT be the answer for your car above 45 psi.

badev0

iTrader: (74)

All good points above.

Kiggly does run a borg warner. He is the only FWD DSM in the 7's and I believe 8's. They do make good power, most people just aren't familiar with them and prefer ball bearing.

I considered a new Xona but there are no divided T4 options (didn't want to change my entire setup).

2winscroll

Another opinion of mine on the super 99 is that it's not a well balanced turbo. The smaller T3 flange and exhaust wheel (76/67 turbine) are not well matched speed wise or flow wise to a 72/99 compressor. IMO it was made for guys who already had a T3 header and wanted to step up to a bigger turbo. They wanted to make the spool look decent for a 72mm turbo so they put a tiny restrictive turbine on it. They knew the PR's were gonna be high so a large 99mm wheel was used. It's a different theory that does work quite well, hats off to FP for a non traditional setup I like that. Your gonna need good fuel running this turbo, definitely not a pump gas turbo. Probably wouldn't make much more power than a 6466 on pump.

2winscroll

Evo8vz,
I must say I like your camshaft selection. I have the same in my car. Are you running the cams straight up or modified cam timing?

evo8vz

you could be right shops push **** they know they can make money on lol

evo8vz

do you think dual 450 or will it still not be a wise choice?

2winscroll

I have no experience with the 450's so I couldn't say. Maybe someone who has used them would chime in? Are you running straight gas or ethanol blend?

familyMAN

I'm running twin 450's with a super99. They didn't like last year with 2150's with base pressure turned up to 58 was tapped around 40ish psi of boost.

This year, I added 1650's as primaries and moved the 2150's to secondary. Dropped base pressure to 43 and good to go at 47psi so far.

evo8vz

which fuel lines?

2winscroll

What fuel R you guys using? Even with straight alcohol you should get +900 easy with 2150's and 43 base press.

evo8vz

friend used ftw and m5.....maxed out at 700 whp on dual pumpers

2winscroll

I was referring to dual 450's pumps with 40 psi boost. It's all relavent to how much boost it takes your motor to produce 700hp. For instance a standard double pumper with 255's at 38psi boost can deliver enough E85 for around 875 safe horsepower. The same 875 horsepower in a setup that requires 47psi to make that horsepower is not going to work. I looked at some pump curves for the 450's and it appears they have a little more flow at high pressures but not a whole lot. They might give you a couple more psi of headroom to work with. The ONLY time I would considered raising my base fuel pressure is if the injector duty was maxed out and fuel pressure wasn't flatlining.

norcalSRTrida

iTrader: (1)

False.