New Bolt in turbo... FP White Rabbit.
Originally Posted by Ludikraut
gsujeff, sounds to me what you really need is a 2.3 stroker with a gt35r and alky. That would pretty much fit exactly what you're looking for. Not the cheapest solution, but hey ... gotta pay 2 play. 
Also, as far as having a trackable car for road racing, the stock turbo is NOT superior to a gt35r. If you look at the stock gearing, your optimal shift points are going to be near redline in every gear, putting you at 5000+ rpms in the next higher gear - easily enough rpms to get mad power from a gt35r. Anytime you are allowing your rpms to drop below that, you are losing power due to gearing, hence the wider powerband of the stock turbo is really not that useful on a track. Certainly the stocker, as well as the WR will be far easier to drive, but a gt35r driven properly will beat them, which is probably why both Chronohunter and Racerjon prefer gt35r Evos for racing.
l8r)
Also, as far as having a trackable car for road racing, the stock turbo is NOT superior to a gt35r. If you look at the stock gearing, your optimal shift points are going to be near redline in every gear, putting you at 5000+ rpms in the next higher gear - easily enough rpms to get mad power from a gt35r. Anytime you are allowing your rpms to drop below that, you are losing power due to gearing, hence the wider powerband of the stock turbo is really not that useful on a track. Certainly the stocker, as well as the WR will be far easier to drive, but a gt35r driven properly will beat them, which is probably why both Chronohunter and Racerjon prefer gt35r Evos for racing.
l8r)
Originally Posted by DynoFlash
I am no turbo whizz - I can just tell you that my HKS GT3037 and GT3040 both blew away what ever numbers I could get from the so called GT3076 which has generally sucked.
However - I guess in all fairness I started to think the GT30 family of turbos sucked after I got into the Gt35 family. Now that I have graduated to the Gt40 I am stating to dream of the Gt42.
I guess the main lesson I learned with Evos is that big turbos are good.
Here is some data from ATP web site
"The "GT3076R-WG" packs the 500HP capable, quick spooling 52 trim 76mm compressor found in the popular GT3037 with the high flowing 90 trim turbine wheel found in the larger GT3071R-WG making it the highest flowing turbo available in the internally wastegated configuration. This turbo is as an ideal power upgrade for GT28RS/GT2871R/GT3071R-WG setups looking for a lot more power."
However - I guess in all fairness I started to think the GT30 family of turbos sucked after I got into the Gt35 family. Now that I have graduated to the Gt40 I am stating to dream of the Gt42.
I guess the main lesson I learned with Evos is that big turbos are good.
Here is some data from ATP web site
"The "GT3076R-WG" packs the 500HP capable, quick spooling 52 trim 76mm compressor found in the popular GT3037 with the high flowing 90 trim turbine wheel found in the larger GT3071R-WG making it the highest flowing turbo available in the internally wastegated configuration. This turbo is as an ideal power upgrade for GT28RS/GT2871R/GT3071R-WG setups looking for a lot more power."
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Originally Posted by gsujeff55
The track isn't all about gearing and where you end up when you shift....its about part throttle and lag in between shifts as well, and thats where the 35r sucks. I know that some pro drivers can deal with it, but for 99% of us its rough!
Originally Posted by ShapeGSX
Why on earth are you using a surge ported cover on a turbo this small? 
We are able to run a true 4" air box/pipe to the turbo for max air flow
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Surge ports are designed to decrease the efficiency of a compressor, though. They are used to keep a compressor from surging by letting some pressurized air out of the diffuser and back into the compressor inlet. A huge turbo can afford to lose some air like this. A 16G can't.
I can see the benefit to having a larger diffuser, but those surge ports aren't going to help. On a 16G, I'd expect it to be even worse. And a 4" inlet is a bit of overkill for a turbo this small. You might lower the pressure ratio a tiny bit, but I doubt it would be noticable.
Have you dynoed any gains from this setup? Have you tried the cover with and without the surge ports?
I can see the benefit to having a larger diffuser, but those surge ports aren't going to help. On a 16G, I'd expect it to be even worse. And a 4" inlet is a bit of overkill for a turbo this small. You might lower the pressure ratio a tiny bit, but I doubt it would be noticable.
Have you dynoed any gains from this setup? Have you tried the cover with and without the surge ports?
The BR GT30 is usually a GT3076, that is the largest GT30 built. We can also do a GT3071 and have them instock. It will depend on what you ask for and what you tell us your goals are, then we'll get you what you need.
David Buschur
www.buschurracing.com
David Buschur
www.buschurracing.com
Let us know what it does.
Originally Posted by Ludikraut
Also, as far as having a trackable car for road racing, the stock turbo is NOT superior to a gt35r. If you look at the stock gearing, your optimal shift points are going to be near redline in every gear, putting you at 5000+ rpms in the next higher gear - easily enough rpms to get mad power from a gt35r. Anytime you are allowing your rpms to drop below that, you are losing power due to gearing, hence the wider powerband of the stock turbo is really not that useful on a track. Certainly the stocker, as well as the WR will be far easier to drive, but a gt35r driven properly will beat them, which is probably why both Chronohunter and Racerjon prefer gt35r Evos for racing.
l8r)
l8r)
Say that after you drive a car around the track with the 35r.....you'll be BEGGING for your stocker back.
And we dont' have the no lift shift option on the EVO yet GSX....that would be nice though
And we dont' have the no lift shift option on the EVO yet GSX....that would be nice though
Originally Posted by propellerhead
Not to mention that the ultra-rapid transient response of the stock turbo makes throttle modulation somewhat difficult, especially when the adrenaline is flowing. At least this was my experience when running the stock turbo with BR stage 3 upgrades at 23-24psi on 100 octane fuel.
.JPG)
Bone stock autobox Toyota Corolla LE 4 banger. I highly recommend driving something like this on a track rather than an Evo that has grip everywhere and covers up a lot of bad habits.
The stock snail is very responsive, you just have to learn to modulate and turn the car with your right foot.
Regards,
Originally Posted by MGAUTOS
A few pic of the WR with 4" cover ready for testing
Can you give me the link to the BB conversion site? Please keep us posted on those results, btw any significant gains with 4'' cover on stock turbo? Is that what they use for the FQ?
Originally Posted by 4G63>OOOO
If you think throttle modulation on a stock turbo Evo is rough, try this:
Bone stock autobox Toyota Corolla LE 4 banger. I highly recommend driving something like this on a track rather than an Evo that has grip everywhere and covers up a lot of bad habits.
The stock snail is very responsive, you just have to learn to modulate and turn the car with your right foot.
Regards,
Bone stock autobox Toyota Corolla LE 4 banger. I highly recommend driving something like this on a track rather than an Evo that has grip everywhere and covers up a lot of bad habits.
The stock snail is very responsive, you just have to learn to modulate and turn the car with your right foot.
Regards,
I've had instructors look at me and ask me wtf the problem is. Anyway, back on topic. I'll be interested to see if any of these WR show up at track events later this summer.