Turbo Upgrade

[Nicbyte]

Hi Guys

Came across this article, I'm starting build in 2 months and upgrading my turbo's is definitely something I'm looking at doing. So far the only options I have been able to find are VARGAS and ROB BECK both priced around 40k.
Is there anybody running on these Borg Warner's, or something NON RB or VARGAS?

http://www.bimmerboost.com/content....-with-Motec-controlled-N55-and-600-horsepower

http://www.borgwarner.com

 

[hoosain]

i would like to know as well
iam sure someone on the forum has modified the original turbos

 

[boost3d]

Stallion turbo's are the local option ....

 

[Hubblyking]

I had the stallion upgrade costed me half of the rb money .The best the car did was a 248 On the 1 km.The new owner of the car made it single big turbo,might be done in the next few weeks.

 

[Kish2604]

Out of interest, what did you do in the 1km on stock turbos?

 

[Hubblyking]

Out of interest, what did you do in the 1km on stock turbos?

228 was my best with fr&r software ,dp,forge dvs,aftermarket chargepipe,bmc drop in with mr5 mod and 20 inch wheels.I also had the devils own meth but it was always faulty so didn't use it.the car was steptronic.

After the turbo upgrade I changed to dual cones ,big Tom cooler.I never had good quarter mile times the car had a lot of lag best was a13.2

 

[Kish2604]

Thanks... So the car went backwards on the quarter with the mod turbos but ran better on the 1km?

 

[Nicbyte]

Out of interest, what did you do in the 1km on stock turbos?

228 was my best with fr&r software ,dp,forge dvs,aftermarket chargepipe,bmc drop in with mr5 mod and 20 inch wheels.I also had the devils own meth but it was always faulty so didn't use it.the car was steptronic.

After the turbo upgrade I changed to dual cones ,big Tom cooler.I never had good quarter mile times the car had a lot of lag best was a13.2

Interesting, I remember reading on bimmerboost about something similar. Turned out that the was a clip of some sorts on the turbo that caused it to lose pressure. They replaced it with a proper stainless steel piece and Turbo's held boost fine, I think it's an option on the upgrades. Not sure if it's billet or thrust wheels, Not an expert. I'll see if I can find that post though.

 

[hoosain]

I had the stallion upgrade costed me half of the rb money .The best the car did was a 248 On the 1 km.The new owner of the car made it single big turbo,might be done in the next few weeks.

20kph over the old speed is a helluva lot:thumbs:

 

[Hubblyking]

Thanks... So the car went backwards on the quarter with the mod turbos but ran better on the 1km?

Nope I think it had the same problem that m3 devil had in one of his threads,about a faulty solenoid.

 

[M3_devil]

Ja. My car also went slower on 1/4mile due to boost coming in late as a result of lag.

once I do clutch then I can check again.

 

[Fayz]

George did a 251 on standard turbos,current record holder.:thumbs:

 

[George Smooth]

The machining of the exhaust side wheels is essentially the most crucial part of the upgrade. Before buying the RB's which I got the first batch of and am very happy we tried to make a set locally. The gap on the exhaust side between the wall and wheel was bad as well as not uniform. The car it was tested on also spooled very late and got going at a later stage. I am sure by now the likes of Stallion have perfected this. The Chiplogic guys in PMB have a convertable with local units that outperforms my car with the RB's at the top end of the power curve. Durability is yet to be tested as the car does little mileage.

I still need to do a run on the 1km with the RB's but my prediction for street testing is that it will come in at around 256 so not a vast exit gain. This may also be due to my longer than stock gearing though. Would be cooler to see what other do but as far as I know I have only cracked the 250 mark on a very hot day and backed it up at another event.

 

[M3_devil]

With full bolt on's what type of power figures are they running with the modified stock turbo's. would be interesting to know

 

[NSH_335i]

With full bolt on's what type of power figures are they running with the modified stock turbo's. would be interesting to know

+1.

Also a bud of mine about a year ago called stallion to enquire about modifying n54 stock turbos that time they said they could only machine and fit a larger comp wheel they couldn't do the exhaust wheel. This only yielded a gain of +-1kw IIRC and acutally lost a bit of torque.

 

[Dangz_335]

Speak to the guys from project shift racing they did wonders with my turbos

 

[hoosain]

Speak to the guys from project shift racing they did wonders with my turbos

what was done to the turbos?

 

[S1NGH 911]

Tell us more...".


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[Dangz_335]

Tell us more...".


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Im not a very technical person so I honestly don't know, what I do know is that my car pulls like a bat out of hell. Speak to project Shift they will definitely be able to tell you exactly what they do...

 

[Crash_Nemesis]

Burgy making magic again... :thumbs: