well remember that the 20g's have the same hot side as gt3076s and the cold side of a about a GT3071.

You are definitely not being limited by the hot side with a true 20g!

 

I'd imagine this is approaching if not past the limit of the compressor. I've seen GT28 series Garretts hold boost and never lose power on the same platform all the way to 7500rpm at 27psi (about 750/750). So from the looks of it, that's about it for those 20gs. But again, it hard to tell without being there during the testing, looking at the boost curve, data etc. Remember, this graph is from an awd vehicle with (iirc) stock heads/cams. No doubt the car is fast as hell though. LOL, even with 18s and drag radials, 9.6 in pretty much street trim is ridiculous.

 

The battery is in the trunk and the bulk of the fuel system is in that compartment now. I use the stock check valve but im seeing its limits and need to put one inline before the catch can and just drill out the stock one.

 

it was done in high 60's low 70's weather so idk?

it was 18-19psi and yea sharif was pretty pumped when he texted me the numbers! i have bc stage 2cams/ little bit of polish and porting along with ferrea 1mm oversized valvetrain to help her breathe a bit

 

Hey I'm in a big hurry for 20G's, but Im unsure if the bolt right up to my 18's exhaust manifold and AAM 3"DP's. Do anyone know if and what I need to rebuild to make them fit? Are gaskets the same?

 

Mine were upgraded from 18 to 20 G's and they bolt right up no problem. No worries. If done properly, the gaskets to the DP may need to be opened up slightly but that's it.

 

I hope some other people could run on a dynojet to see what the numbers are.

 

have u guys who upgraded from 18 to 20g's try to see if you could swap/buy the whole turbo out for a true 20g instead of modifying your 18g to a 20g?

 

Its cheaper to have them upgraded then to buy new turbos from greddy.

What I want to know is if the TD06-25G with the 16cm back housing will fit with the greddy manifolds. Its the same 3-bolt pattern but does it clear everything else.

 

Thanx
I had my 18G's upgraded but they really ****ed up Short story; they destryed them, not possibel to rebild.

So I just ordered genuine 20G's. GReddy said that I need TD06 flanges and TD06 gaskets so I went for those too.

Enine is in engine dyno and will be tuned aprox in 2 weeks.

 

what placed F'ed up your rebuild? where did u get/order the genuine 20g's from? cost? I sent an email to Greddy but their response had absolutley nothing to do with what i asked them..

 

The shop that F'ed up said that they is going to make it up for me so at this time I prefer to give them a chance, but I'm not convinced that they'll do it...
I deal w/ Concept Z Performance, newer F'ck up. Price is $1650 / turbo.

 

A friend of mine just made 620whp with twin 25G's on 16 PSI (I think its 4.2L) on pure 95 RON (90-91 AKI) and his car has some ECU problems that's some times retard timing.

will try to get more info and dyno sheet later this week.

 

Oh.. and his tuner told him to fix his car and bring some C16 and he will be in the 800-900whp no sweats.

 

lol, depending his supporting mods.

i don't think he'll get there this week if his ecu is pulling timing. he's either knocking or having other issues that might require a standalone ecu. So either knock or bad ecu.

Most tuners won't push a vehicle to that hp if they are having issues getting the timing stable. Too risky on their pocketbook.

 

I think he has stg 3-4 heads (maybe the cosworth) and custom 30? dur set of cams.


He is running the HKS F-CON V PRO but the problem is that he is running a DE engine with RevUp ECU and flash (he swapped his transmission from AT to MT)

 

well i thought the vpro was full standalone so it should be doing the timing.

and it's defintely a no no to run a rev up ecu with a de motor. why would he do that? a manual swap shouldn't mean change the ecu from a non-rev to a rev ecu. he should have put a manual non-rev ecu in there.

 

 

Dear Midz,

make sure when you quote other car modifications and horsepower is real because the information that you post is not accurate; by the way I will post my new project results soon.


Thanks

 

LOL