Since this economy sucks i cant sell my external wastegate greddy 18g turbo set up for the price i want to go bigger (gt35, 44mm wg, etc.) , ive been thinking about putting it on my new b16 84mm sleeved,rod,piston, ramhorn manifold, skunk2 port matched intake manifold, 70mm TB, precision 600hp intercooler, full aftermarket valve train motor. I put a t3 to t25 adapter on the turbo to mount it to a t3 ramhorn and put a atp-turbo GT28r v-band 3" exhaust flange on the turbo, and welded the wg flapper shut for 38mm tial wg, so ive got some money in the turbo. All i would have to do is sell my RC 550cc injectors and get some ID 1000's and get a new tune, which sounds real nice on my pocket right now since theres a possibility i could lose my job in july. I made 350hp and 252tq on a stock b16 with the Greddy 18g external wg ramhorn manifold set up at 15-16 psi. I would like some input on what some of you think? Am i crazy lol? Also what you think the new set up might make and any input you might have?

Heres the set up

 

Id say you could probably hit 400whp on that turbo with that setup. Probably the highest numbers on a 18g thats for sure.

 

i know i will find out but anyone know what psi the 18g will top out at? i read 28psi but not sure if that is accurate

 

good numbers but ive got my stock b16 over 420whp dynojet on a 3076 on 18 psi.

 

Good for you, to bad this isnt a pissing contest.

23-24 psi is the limit according to the hypothetical compressor map thats around for it.

 

yea im not trying to compare my set up with anything else, i know what kind of power i can get at a lower psi with a better turbo but im trying to see what this turbo is actually capable of...yea 28psi did not sound right to me but 23-24psi sounds more like it...thanks for the info LightningTeg...when i sell my injectors and get my id 1000's ill post my dyno results and everyone can see what the greddy 18g can really do

 

Go ahead and do it man for time being. Post the dyno sheets up i want to see the powerband.

 

X2 post up the graphs for your current numbers i want to see the powerband also.

 

You got it in and running??? I wanna see that **** run!!!

 

About 25psi is about as all it can take.

 

Not too technical, but I'm digging the engine bay, looks nice!

 

Myself and a few other dsm guys have spiked 16gs and 18gs to 35psi for that extra amount of tq. But it would quickly fall to 29psi and hold, you have to want to let the turbo run out of it ranage to make the bigger numbers. It's all in tuning at that point, look on the dsm forums for these qeustions your asking. Stock 14b powered dams have gone high 11s!

 

Maybe on a honda it's 25psi because the heads flow so much more than a dsm, but the turbo is capable of 28-29psi on a dsm. Dsmtuners.com

 

Just wondering how's the spool and how is the power with that turbo, I was considering using a 18g or evoiii 16g. Not a evo8 because that's twin scroll, I want fast spool but don't need to pay 1400 for a 400hp turbo.

 

Dang, this is what I should have done to my setup years ago. I was happy with the greddy kit, but wanted more out of, but didn't have the funds at the time. Awesome conversion on the setup. I'm in for results too.

 

naw its not running yet...still have a few things in the engine wire harness to redo that i slacked on when i did it last time and need to do a drain to the oil pan from my catchcan...hows your car doing?

thanks for all the info everyone, i will hopefully have it done within the next month or so and i will post it up. im hoping for 450-500hp but we will see haha

 

heres with the stock b16

 

Super nice setup, Have a stock b18B with a Evo 16g and made 359hp, 296tq on Q16 race gas, at 26psi...lol. We were trying to max out the turbo, but ran out of injector. You should be able to see 20 plus psi on a 18g with no problem.

 

wow nice numbers with that setup, gives me something to look forward to lol

 

Very good ingenuity. Congratulations. I'm sure its a BLAST to drive !!

 

what evo turbos are not twin scroll?

 

^^^ Why did you bump a year old thread just to make a dumb comment!

 

needs to get his post count up....

 

just curious

 

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