Time for an Upgrade...finally!

[hsvturbo]

Why is the GT4094R so weak for the psi its at?

Sent from my GTX3582R

It does seem a little weak.

I'm looking at another CES 4094r dyno graph which makes 651/560 at 19.6 psi, and 712/613 at 23 psi. IIRC, this is with 100 or 110 race gas.

[milKt]

550 wtq at 4000 rpm is far from weak

but the pauer doesn't CLIMB like a GT4094r should to 700whp

Likely a 60# injector on 93 pump.

[JuCo]

Wow...lot of good responses.

Litemup thanks for the graphs, and I agree 400 wtq at 3200 and climbing doesn't seem too lazy to me....granted the 6766 is a bit larger, but I can't imagine it delays it more than 5xx or so more rpm.

I'd like to see some more comparable graphs where all are on pump gas or all on 110 etc...

[futureroadracer]

Why is the GT4094R so weak for the psi its at? Sent from my GTX3582R

Marketing

[gnarfy]

upgraded from TT stage 2 to GTX3582R, and I wouldn't live with more lag... it's all to what your doing with the car, but as a steet car, the GTX3582r is perfect, I wish I tried the 3684r, but I was worried about the turbo size, as it's bigger than the GTX...

[chikinhed]

The S362, like on Avee's car, would be a good step up from the 60-1. It's pretty fast at 15 psi, 20-23 psi would be fun.

Sent from my GTX3582R

[JuCo]

The S362, like on Avee's car, would be a good step up from the 60-1. It's pretty fast at 15 psi, 20-23 psi would be fun.

Sent from my GTX3582R

Size wise would it fit well with the bottom mount spa? Would love to see some dyno charts to see the performance on our motors.

[doktor b]

OP, what thickness is your MLS? or what are you planning to run on your new setup?
i've found that turbo response is greatly affected by an engine's static CR.
i was able to spool a gt4088r 500 rpm faster than my friend could spool a 6266 on a 3.2L with the same manifold. the primary difference with regard to engine was that i ran 8.5:1 CR and he was 8.0:1 CR.

[milKt]

^
perfeCT info

and despite all the shiny, glorified, data packed, unBMWtested new turbos

the Goodfather's Drug of Choice, the ORIGINAL twinscroll fave, continues to glow...in price and performance.

[litemup]

i agree. I was talking about the 67mm compressor being too large For both his goals and that 600hp manifold.

Ok I gotcha.

That 4094 graph was 93 and meth I think, not 100. All S52's though, and same tuner. Not a 100% scientific comparison, but not a bad reference either.

[Butters Stoch]

Ok I gotcha.

That 4094 graph was 93 and meth I think, not 100. All S52's though, and same tuner. Not a 100% scientific comparison, but not a bad reference either.

93+meth usually is close to 100 octane. And if the others aren't tuned for 100 wouldn't be kinda apples to apples ?

[pbonsalb]

Were the 100 octane cars also using meth? Would the 93+meth owner risk going as high boost as the 100 or 100+meth owner? Were any tunes 60 lb ones that may have been near their limit? Were any of the cars running meth tuned for it?

[milKt]

RUN 011 is shown below in the ORIGINAL dyno form from a year ago as a GT35x run.
Something is awry here.


http://www.bimmerforums.com/forum/sh...nagofast-event

[JuCo]

OP, what thickness is your MLS? or what are you planning to run on your new setup?
i've found that turbo response is greatly affected by an engine's static CR.
i was able to spool a gt4088r 500 rpm faster than my friend could spool a 6266 on a 3.2L with the same manifold. the primary difference with regard to engine was that i ran 8.5:1 CR and he was 8.0:1 CR.

Currently the car has a new .140 MLS gasket that has about 1000 miles on it. If that fails then I'm sure I'd put a cutring in the car without hesitation.

^
perfeCT info

and despite all the shiny, glorified, data packed, unBMWtested new turbos

the Goodfather's Drug of Choice, the ORIGINAL twinscroll fave, continues to glow...in price and performance.

I'm lost Milkt? what is the Perfect info? Comp Ratio or manifold choice?

Were the 100 octane cars also using meth? Would the 93+meth owner risk going as high boost as the 100 or 100+meth owner? Were any tunes 60 lb ones that may have been near their limit? Were any of the cars running meth tuned for it?

I know most people on the forum are trying to get every drop of performance out of their setup, i'm taking a very simple approach and just want to use Pump gas as this point. So all these HYPE'd up numbers on Meth, or 110 mixture or E85 don't help me see the base I'm looking for. Granted everyone's setup does vary so its an apple to oranges compro anyway.

[milKt]

i'm taking a very simple approach and just want to use Pump gas as this point. So all these HYPE'd up numbers on Meth, or 110 mixture or E85 don't help me see the base I'm looking for. Granted everyone's setup does vary so its an apple to oranges compro anyway.

Well done.
Keep it simple.

Choose a turbo that MANY have run and WON.

The abilities of one of the new, untested units
will be proven on your dime.

[JuCo]

Well done.
Keep it simple.

Choose a turbo that MANY have run and WON.

The abilities of one of the new, untested units
will be proven on your dime.

Ahhhhh! Got it and agreed Good Sir!

[E36 HateR]

4094r pump gas, is 600whp all day at 18-19psi, with shricks you can make 670-680whp on pump, get the E85 and have a stock block beast like me

[Butters Stoch]

4094r pump gas, is 600whp all day at 18-19psi,

93 with meth.
Without meth, 18-19 psi with a 4094 will surely be knocking. You may make 600, but would be really walking a fine line.

[E36 HateR]

93 with meth.
Without meth, 18-19 psi with a 4094 will surely be knocking. You may make 600, but would be really walking a fine line.

Jordan tuned plenty of 600whp ics 93 only cars, scalz made 648whp on pure 93 with an arp/.120 mls s52.

Scalz car was running hard for a long time before he moneyshifted it.

[Butters Stoch]

Jordan tuned plenty of 600whp ics 93 only cars, scalz made 648whp on pure 93 with an arp/.120 mls s52.

Scalz car was running hard for a long time before he moneyshifted it.

Doesn't mean it wasn't knocking. I know its been done. But its not really all that safe.

[Z3speed4me]

I made decently over 600 run after run after run using a barely smaller 6466 on 93 pump; as did the current owner of my motor... Why wouldn't a 4094 be able to do the same on an efficient setup?

[SM3]

93+meth usually is close to 100 octane. And if the others aren't tuned for 100 wouldn't be kinda apples to apples ?

Ok guys mine is the 4094R car that's running 93 Octane and 50/50 water meth.
The other 2 CES Cars are on straight 100 octane No Meth.

I made 692 whp and 626 wtq on 20psi
Purple car (frankinstien motor) on 100 made I think around 660's at 23-24 psi.
Blk car made 670's on around 23 psi on straight 100
I might be a bit off on the others 2 cars

Purple car and Blk car both had cams one had Schrick and one VAC I cannot remember which car had what.
I have Elgin regrounds

[Butters Stoch]

I made decently over 600 run after run after run using a barely smaller 6466 on 93 pump; as did the current owner of my motor... Why wouldn't a 4094 be able to do the same on an efficient setup?

6466 will be as well. I guess what I'm saying is, once you get in the 550+ range with these motors, from what I understand they will show signs of knock without water/meth. I very well could be wrong, but I'm pretty sure at those power levels you will want a knock suppressant.

[SM3]

6466 will be as well. I guess what I'm saying is, once you get in the 550+ range with these motors, from what I understand they will show signs of knock without water/meth. I very well could be wrong, but I'm pretty sure at those power levels you will want a knock suppressant.

Exactly what we have seen time and time again. With in around 20 whp!
If I remember correctly almost every car dynoed from other tuners other than Nick G that's on pump and no meth have been knocking.

[GG///M3]

Jordan tuned plenty of 600whp ics 93 only cars, scalz made 648whp on pure 93 with an arp/.120 mls s52.

Scalz car was running hard for a long time before he moneyshifted it.

Correct