Ok a couple of points

Yes Im from Oz. :P

I dont know how US DD dynos are set up but Australian DD Dynos measure kilowatts at the wheels (not flywheel). I was doing all the conversions for you guys because I know you dont like that funny metric system. Shootout mode locks certain operator parameters to prevent manipulation of dyno results - it does not give a calculated flywheel measurement.

Im chasing 270 kilowatts at the wheels which equates to 362 hp at the wheels. Hence the stupidly precise number =) I currently have 200 kilowatts at the wheels with just a tune, exhaust and test pipe (268 horsepower at the wheels).

So the real question is how can I get another 100 horsepower at the wheels.

I understand that the ATP kit gives around 340hp at the wheels which is a Dynojet reading??.

Thats a bit short of where I would like to be but Im running speed density which means that I can go to a big hardpipe for my intake. We also have 100 RON at the pump (95 octane in US terms) which will help with the tuning.

As mentioned previously Im running a Motec M800 so tuning is not an issue. I understand that the Vishnu kit may give me another 20hp but Im still not seeing the justification for the extra cost - I can pick up larger injectors for about $400 Australian - roughly $300 US.

I will eventually go to a stroker. So what should I do. E9 20G? ATP 3071R? Forget it all and save my cash?

 

damn metric system.

anyone who thinks the ATP kit is superior to the vishnu kit has an agenda....cough, Az3ar, cough....

when ludi mentioned maps being available for it, he was speaking in general terms obviously.....not specific to this guy.....it was a rebutle to az3ars rediculous comments. Az3ar, you speak of ludi talking about something without hands on experience...yet you are knocking the vishnu adapter and have never seen or touched it. pot calling kettle black?

its a consensous on here that the ATP kit is crap....its cheap, but doesn't work well. hell, the buschur kit is 10000000x better for a few extra bucks. the guy said he doesn't have to have the stock manifold, the buschur kits comes with a stock-like manifold and a real garrett turbo for 600 more bucks.

quit being a hater az3ar, we all know you can't build a motor in your garage. need i dig up the rediculously retarded questions you asked when troubleshooting your pos turbo kit, etc?

 

What Im trying to avoid is a big tubular manifold that will attract unnecessary attention. Ill check out the Buschur kit.

 

For the extra 100 ponies you want I would,
Option 1.
1.CES Racing in QLD have a fantastic 3” turbo back. This system is not like the US or Jap systems. It is a pure HP builder. $2800 AU. I have used these guys before on my 32 and 33 GTR’s. I don’t know why but you will get an extra 10 to 15 WHP over the best jap systems.
2. 255lt fuel pump $250 AU
3. 680cc 700cc injectors $600 AU
4. HKS280 cams or let your hair down and get the Revolvers for more than 11 lift! $1000 AU
5. Big (thick) FMIC $ 1000 AU Buy from the US only.
6. Top and bottom pipes for the FMIC $500AU
7. BR20G-9-5 Ouch I will keep my head down!! $3000 AU
8. Simple intake. $350 AU
9. Engine stud kit $100 AU
10 Keep it as cold as possible.
Total approximate cost parts only is $10K AU You will still need some other small stuff that I have left out. This would take me at least 3 weekends to fit. If I had to pay a mechanic it would cost about $2 to $3 K + the tune (4 to 5 hours on dyno at $180 per hour)

Option 2
Head gasket, Studs GT35 series turbo kit or larger, injectors and pump, Turbo back and inlet. As you seem to be after dyno numbers this could be the best way to go.

Remember, how fast do you want to go? $$$$$ It all costs.

I forgot the clutch $3500 AU fitted. Exedy twin plate.

Cheers mate and good luck.

Oh… I have found it just about impossible to get apples to apples comparison on any bolt-ons. Most of the dyno sheets I have reviewed on the net are using alcohol / different octane pump gas or race gas, higher boost or lower. Varied engine mods.

I will PM you my dyno sheet fron the tune after I have finished together with the list of mods on shell optimax 98 and one on Elf race fuel. My build is for road and circuit not dyno days or drags.

 

If you are dead set on eventually going to a stroker, a larger turbo kit (e.g. GT3076R or better) is your best option . . . unless of course you plan to buy a turbo twice.

Getting 362whp on a Dyno Dynamics turbo is achievable with a Buschur 20G-9, but you won't do it on the U.S. equivalent of 95 octane fuel. For the sake of perspective, even an EVO-8 TME turbo ($900 USD) can get you there with the proper supporting upgrades.

 

^ agreed. A 3076 or 35r on a stroker is fairly impressive. Lookup Smogrunner's latest dyno charts (AMS 35r kit, AMS 2.3L stroker, 91 Octane) .. it spools almost as good as the stock turbo, but makes gobs more power and it's not even tuned 100% yet. Puts my lowly 2.0 to shame.

Again, you'll really have to think carefully about exactly what you want. There are a lot of choices out there, and each one ultimately involves making compromises somewhere.

l8r)

 

Go with the ams 50 trim. Best for quick spool and lots of power (500whp on dynojet).

 

Are there any compressor maps for the 50 trim? Ive looked for them and didnt find any.

The 5 blade v 6 blade 20G thread has put me off 20Gs - Im looking at the IX RS turbo now....

Just need to figure out what exactly is required to bolt up a IX RS to an E8.

Boy from Oz: $2800 for an exhaust? Mate thats a shocker I think Ill just remove it altogether from the cat back if I want to go to Jambo - will impress the crowd and be slightly cheaper.... Not actually chasing dyno numbers - would like a mid 11 second car (probably should have said that from the start) but don't expect to get there till I go to a stroker.

Im looking at Elf as well. Not very cheap but its refined not blended afaik. PM me your dyno - looking forward to it.

 

I've attached the only compressor map I've found for a 50 trim so far. It's for a T04-E 50 trim and someone more knowledgeable than me will have to confirm whether this is representative of the 50 trim BB turbos that are going onto Evos.



However, I have one going onto my car next week, so we'll see what it can do on pump gas - 93 (R+M/2) Oct - and it'll give us a good comparison of a 3071 vs. the 50 trim.

l8r)

 

If you compare that 50 trim compressor map with the 3071R compressor map on the Garrett site you will see that they flow about the same amount of air but the 50 trim has a slightly narrower pressure ratio (which isnt optimal on a small displacement engine running high boost). On paper at least the 50 trim doesnt look as good to me as a standard GT3071R.

Problem is that the 3071R pounds every other turbo on the market on paper (for a balance of power and responsiveness) but no one seems to have a kit that works particularly well with it (in a reasonable price bracket).

 

Yeah, I did the paper comparisons last year as well (though I didn't have 50 trim info at the time) and ended up with a 3071 on an AMS turbo kit. Unfortunately the 3071 nevery quite lived up to expectations, which is why I'm in the process of switching over to a 50 trim. If you can hold out another 10-14 days, I should have some good comparison info for you.

l8r)

 

This will be an interesting comparison since the inducer is about 1mm bigger on the 50trim, but the exhaust side of the 50 trim has a 5mm bigger inducer and a 2mm smaller exducer. It will definitely be a little laggier, just by the fact that there is more mass.

IMHO, the biggest problem w/ the GT3071 is the turbine side. I think its a miss-match. IMHO, the a GT3071 w/ the smaller 90 trim wheel is a much better match. This makes it exactly the same as a HKS GT2835R.

 

Hmm so your saying even the AMS 3071 kit didnt live up to your expectations. Ok good to know.

Im currently about 8000 miles away from my car and will be for the next month so nothing is happening in the interim - I can wait 14 days no problem

 

hahaha may want to talk to the first person to ever run that kit if you're gonna consider it. (his name is jayleno'spoolboy, if you search you shall find)

 

this is a stretch the say the least. for a given similar gearing pull, a stroked or even 2.4'ed evo will never spool a 35r like stock. there will always be a 1000rpm difference. you're hittin' full boost in the 4k range... not the mid 3k range (in third gear).