David,

Have any of your customers put a 20G-9 on a 2.3 yet? Do you think we would see 500 ftlb of torque with that combo?

EVOlutionary

 

Nice work David. Seems the 20g wheel was worth a good 40whp after all. Good news for dsm guys. The 20g wheel has been revised. Just recieved a 20g from japan this week. My eyes popped out of my head looking at the wheel. The new wheel has the same features of the evo16g. Small lightweight hub, resulting in larger blades.

Here are some pics, garrett 60trim, old 20g (60trim), new 20g, evo16g. The blades on the new 20g are virtually the same size as the garrett blades. The garrett just has a huge hub. there is a guy on dsm tuners rockin a 20g. He has run 11.0 at 127mph with 2900lbs race weight. That takes about 464 whp. He has recently changed to the 20g/td06h hotside and feels the time will tumble when the track opens in march.

http://photobucket.com/albums/f397/l.../?sc=1&multi=3

I bought the td06h/20g for my 2.3 that I am dropping in my evo1. Should be fun.

 

Hey Dave, are you staying with the Revolver cams on your RS since they made so much more power? Did they also increase spoolup?

 

I don't think a 2.3 will make 500 ft lbs. I just finished tuning a 2.3 liter with this turbo on it on a mild tune and nowhere near the mods I have it made about the same power as my car did before I put the Revolvers in.

Yes, I am definetely staying with the Revolver cams! Spool up is close to the same as before.

Our dyno when tested back to back against Tym's AWD Dynojet measure 22% less than his dyno did. Going from our numbers to his we'd have to add 33%. I was very close to driving to his shop today to dyno the car there. I ran out of time.

The car was a beast on the street though.

Not sure what a 340 whp car will run off our dyno. Like Trevor said, his friend went 122+ trap speeds with that power. My RS is lighter than most EVO's and with 330 whp ran a bunch of 120-124 mph trap speeds.

David Buschur
www.buschurracing.com

 

94awd,

I thought you didn't like the 20G? Maybe I have you confused with someone else? If not glad you came around

I ran 11.05 at 127 mph way back with my AWD Talon that John Shepherd has now, on the 20G-TD05H. I never liked the TD06 version of the 20G. When I sold the car to John his superior driving took the exact same combination to 10.72 at 131 mph.

I am thinking/hoping, my RS is going to run into the 10's at 130 mph the way it sits right now. I am keeping it like it is and will run it in the Stock Appearing classes at our Shootouts we hold here.

Trent, our welder/friend at the shop, has the 20G on his car but with a semi-mild build. He drove my car today. He was hot and heavy for a GT35R. He turned to me and said, "I think I want to build my car exactly like this one."

What a blast to drive. Instant spool up, 450 ft lbs of torque at 3800 rpm. Nice.

David Buschur
www.buschurracing.com

 

The Evo stock appearing class rules that you posted up on your site in December don't allow tubular O2 housings, which didn't make sense to me, but I guess you'll be changing that rule?

I posted a question about this on your forum a few days ago here.

 

Damn that's the kind of power I want

 

cute kid!!

 

With the larger displacement did you notice any surging issues with the 20g-9? I am building an autocross car and I want the power to be totally seamless no matter what rpm, throttle %, or psi I am running. So far the 20g-9 on a 2.0 sounded like the product for me, but I want to see how power delivery is on the 2.3.

On your car you are getting peak TQ at around 3800, so where does it hit on the 2.3? Did you post up a thread about this? Thanks!

EVOlutionary

 

In turbocharging, you aren't going to see a big increase in power at the same boost level just from changing the compressor wheel unless you are already past the flow limitations of the wheel you are switching from. Simply put, if you aren't making around 400whp on pump gas, you're not going to see a big jump on pump from just putitng on the larger sompressor wheel. On c16 or alky, the ceiling will be raised to round 450whp (maybe more as I havn't searched around for many dynos) with the larger wheel.

 

Yes I know that. However, to get true apples to apples comparison, then pump gas dyno run is necessary. Then you can start adding in higher boost levels and/or c16 or alky to increase your data comparisons. But, without various baseline information, most comparisons are useless.

I am still looking around for dyno sheets that show 300awhp on Dave's dyno with full bolt on's and this Evo 8 20g-9 on 93 octance.

Now, back on topic. Dave I am really looking forward in seeing some of your track runs. Hurry up and get that thing going.

 

will someone repost the sheet, all i see is a red x.

 

The 2.3 liter did not make the car surge anymore. It made 20 psi at 3,000 rpm.

David Buschur
www.buschurracing.com

 

I changed the rules for the DSM and the EVO. The classes will allow a tubular 02 housing but NO external dump tubes. No headers. Stock appearing turbo.

David Buschur
www.buschurracing.com

 

20psi @3000rpm. Was this in 3rd gear on the dyno?? If so that is really impressive.

On my stock bottom end 2.0L, stock '04 turbo I hit full boost at about 2900rpms in 5th gear. Third gear is quite a bit higher due to less load of course.

EVOlutionary