Wow, impressive numbers Nick Excellent work!

 

Awesome, what kind of boost pressures are you running?

 

I have to run dyno a customer racecar.. cool little alfa.. Be back in a couple hours.. I will post a graph. not over 25.8 charge temp end of run peak around 100f.. with 65 ambient.

 

Neato

 

holy hot damn!
awesome work nick.

i bet that thing doesnt hook up til 3rd (....maybe)

must be a wild ride on the highway though.

Nick

ps, when are you gonna go gt30xx in that red vig? haha

 

That sounds like fun. Are you running an LSD....1-2 and partial 3rd gear traction issues will become increasingly annoying.

 

Looks amazing

 

so when will the kit comeout for us?

nice work man! sweet numbers i bet she pulls

 

Holy crap that looks awesome. Boost comes on at a pretty usable RPM too. Me want!

 

:-O I wanna know how you fit the GT28 in without spacers and stuff. But looking good Nick!

 

Very cool. You seemed very excited about this when I talked to you on the phone yesterday. The install of the gt turbo looks incredibly well done, and number's def. show the work you guys put into it. Good work

 

Anyone know how to get a sponsorship from Pirelli

write them a letter..
kevin told them he had a show car sent them pictures and they sponsored him..
that is if your serious...

 

My buddie got sponcered by BF Goodrich that way, he has a pretty clean veil side tiburon that is very show friendly. No stickers on his car, just when he goes to shows he puts those wheel thingys mat/ad's on.

Im sure pirelli would be interested. It never hurts to try.

 

I'd rather be sponsored by Yokohama.... and Nick, that thing must be ungodly :twisted:.... Nicely done hehehe :mrgreen:

 

Here is those runs Charge temp (In manifold so it heat soaks a bit but more realistic) There is a full size in the gallery..

These little national SCCA club race cars are funny... Different scale talking about 1 or 2 horsepower.. I could not feel 15 if i lost them They are so loud too. This one made around 110hp winding past 9k peak hp lower though. I am learning to apply quite a bit of the tuning knowledge I have accumulated.

Anyway I cannot wait till I get some bigger injectors and turn this hardware up. Maybe eventually on E85 This is still the same software stage 4? or so.

 

Wow! I think "stage new underwear" requires a gt3071r....I think gt2871r is somewhere along the lines of stage damp and dark underwear. I would be wrong though :lol:

I'm really thinking that I want to go big with my car sometime soon, too many projects, not enough time or money :-(

 

yea, according to Vigge the 2871r will take longer to spool & produce more power up top vs the 3071r

Nick, do you plan on trying the 3071r to see how it compares? It would be interesting to know how the 2 compare especially since you can tune/dyno it

 

yea, according to Vigge the 2871r will take longer to spool & produce more power up top vs the 3071r

Nick, do you plan on trying the 3071r to see how it compares? It would be interesting to know how the 2 compare especially since you can tune/dyno it

nice results, get those injectors in there before "things" happen.

What is the precice model of this GT2871? (please reffer to www.turbobygarrett.com). There are many version out there of the GT2871, having different chartaters.
You would not have your g/s vs. rpm plot available?

for reference, here is one dyno plot from a 2.3 saab with GT3071, turbine ar. 0.86
values are from the wheels
http://81.216.254.9/~toxic/bromsning/PICT20882.JPG
the 0.64 GT3071 >500 rpm earlier

 

Nice job Nick!!! That's an awesome graph....
I think you're right about the new injectors, although you have more power wiggle room with a slightly lean tune on those sweet JE pistons.
Maybe the Siemens 630ccs?

 

I plan to dyno it again tomorrow or so to get some numbers after it has adapted now it is nicely rich. In a perfect world I should have given it 100 miles to adapt before dyno but this is not. It is very interesting how T7 reacts to airflow changes. We are working on getting the other ecu data into the dyno. Maybe a signal straight from the AMM or out of the OBD2. Also on goes the rest of the exhaust. I have a few ideas of what I am going to do but will let the data steer me in the right direction.

When I saw those numbers the thought of inaudible knock killing it concerned me but with the reduced back-pressure and lower charge temp it now has only about half the knock as before. With the 18t on a fresh adaption I would have a handful of recorded knock events just like a stock car. Also without "proper" software some weirdness was expected, none encountered. Other than it getting wheel-spin at the top of 3rd..

The turbo is the GT2871R Int WG, with .64 exh In the spirit of exploring all options.. The bigger exh housing will go on and also I may try a 3" pipe from AMM to turbo The stock hose seems a bit restrictive off the maf, ~2" inside. This should further help spoolup. Cams should make a difference too. Currently running t5 bumpsticks on stock timing.

I will probably run the Greens for now and then when E85 tune got to 630s

In a effort to not get arrested for having too much noise and no respect for speed limits I parked it and drove the 180hp SS last night. The on ramp never seemed so long

 

I plan to dyno it again tomorrow or so to get some numbers after it has adapted now it is nicely rich. In a perfect world I should have given it 100 miles to adapt before dyno but this is not. It is very interesting how T7 reacts to airflow changes. We are working on getting the other ecu data into the dyno. Maybe a signal straight from the AMM or out of the OBD2. Also on goes the rest of the exhaust. I have a few ideas of what I am going to do but will let the data steer me in the right direction.

The OBD is OK to obtain both rpm and airmass, but since the re-fresrate of it is low the run needs to be slow enough for it to keep up, so for a dyno use it will not prodive good results. On the road 3rd or higher gear will work.
I personally use an innovate LMA-3 now a days, gives 15hz re-fresrate when all 5-6 channels are logged.

The turbo is the GT2871R Int WG, with .64 exh In the spirit of exploring all options.. The bigger exh housing will go on and also I may try a 3" pipe from AMM to turbo The stock hose seems a bit restrictive off the maf, ~2" inside. This should further help spoolup. Cams should make a difference too. Currently running t5 bumpsticks on stock timing.

any details about the turbine wheel diam.? trim

ps. I will toss some measurements about the std box flow capabilites some time in the new future does not seem to bother me with 325g/s airmass flow

 

Turbine 53.85mm 76 trim .64 ar
Comp 71mm 56 trim .60 ar

My dyno has steady state capability, with the Eddy current absorber we can control the rate of acceleration or hold it at a certain place. I am fully aware of the limitations of OBD2 interface.. Will probably be on CAN bus if we cannot get a good reading from maf frequency with a lookup table

 

Turbine 53.85mm 76 trim .64 ar
Comp 71mm 56 trim .60 ar

thanks, ok then it is the unit I though it would be

My dyno has steady state capability, with the Eddy current absorber we can control the rate of acceleration or hold it at a certain place. I am fully aware of the limitations of OBD2 interface.. Will probably be on CAN bus if we cannot get a good reading from maf frequency with a lookup table

but the guestion is do you have a look up table which goes beyound the 140g/s stated in WIS? I know I do because I measure hz directly from MAF with the LMA

 

364 tq and 330hp at the ground

with 10% loss that is 400ftlbs Tq and 370Hp at the CRANK

Got the bigger injectors in Green *968s @3.5bar.. Much nicer but still some work to do. I added the rest of the exhaust so the backpressure hurts the boost rise down low. I also have on the same runs exh pressure 3-5lbs and vacuum at the turbo peak 28" h20 about 1 psi at max rpm. If time permits test with stock airbox tomorrow. I am sure we can make the power with more restriction but how it affects the low end boost rise is important to me.

 

Wow....those numbers are downright amazing. That must be ridiculous anywhere below 3rd gear. Great job Nick!

 

Thought this might be interesting...

http://www.saab-scot.com/board/question.asp?QID=5323

 

That's a nice machine with a HUGE turbo...maybe a GT40?

Looks like the owner ditched the B235R engine and is using a B204 with T5 management....

 

Great numbers, Nick....and better yet, GREAT A/F.....


The first graf was a little worrisome, but this one was far, far better....


Stock up on the undies!

 

i think that car came with the b204 and t5;-)

 

Good eye....It's a 94 SE with a Viggen kit and a killer paint job....