turbo selection question

[emperor_lunchbox]

ok i am getting ready to purchase an RB20 and i am planning the path of upgrades before hand, one question I have is about the size turbo to put on. I am looking for as close to 400 at the wheels with not too much lag and the power has to be usable.anyway i found this turbo on blaast performance's website and I was wondering if this size turbo would meet my needs?

this is the first selectionhttp://blaastperformance.com/t3t04e4850-40t.htmlpicture of the first selectionhttp://blaastperformance.com/i...t.jpg

second selectionhttp://blaastperformance.com/t3t04e6370.htmlpics of the second selectionhttp://blaastperformance.com/i...0.jpg

or if there is any other advice someone could give me.

i dont know if this really matters, but i will be using the car mostly as a street car and a weekend track car, drag or race.

anyway thanks alot for reading all this.

- kyle

[Eastcoast Wildboy]

Hks gt series ball bearing turbos. I have the gt2850 hit full boost around 2800 and thats 22 pounds for me

[f150intally]

Neither one of those turbos. The first one will not get you close to 400 and the second will be too much.

You could go with a 50 trim t3/t04e with a stage 5 wheel. that will be right at 400 hp with decent spool. probably 25 psi by 44-4800. not sure on the rb how quick but should be quicker than the SR.

[emperor_lunchbox]

where would i find a turbo with those specs?

also do you know of any place that i can get a tutorial on how to read a compressor map?

thanks again, kyle

[f150intally]

http://www.turbobygarrett.com

http://www.cheapturbos.com

[emperor_lunchbox]

i just checked out that cheapturbos.com site and i found one that kinda matched the info you gave me,

what about this turbo:http://store.yahoo.com/cheaptu....html

[Yellow4g63]

I think the 50 trim is more effiencet that the 57 trim. Tho I don't think it's by a whole lot. Go for the .63 exhaust housing. I have a .63 for my turbo tho it has a Stage 5 wheel in it. I'm sure mine will have lag but it's liveable lag

[emperor_lunchbox]

thanks alot for that assistance. so i think ill go with the 50 trim and the .63 exhaust housing.

this is the link to the one that i will most likely get.http://store.yahoo.com/cheaptu....htmli dont think that this is the exact picture tho.

let me know if there is anything else i should consider.thanks alot for all your help.

[Eastcoast Wildboy]

Hks gt ballbearing system is a nice turbo quick spooling at low rpms. Gotta remember if u hit full boost early u can beat the guys who isnt hitting full boost early.

[goofynick6]

I wanted stage 3 50 trim with .63 turbine, but they're rare and expensive..so I got the 57 trim instead...should be just fine for some big numbers

Nick

[BoostFab]

Hks gt ballbearing system is a nice turbo quick spooling at low rpms. Gotta remember if u hit full boost early u can beat the guys who isnt hitting full boost early.

yeah; when they hit full boost, you'll be left behind spinning your tires

[emperor_lunchbox]

i want a balance of quick spool and a heavy hitter up top. i dont really want the performance to cut off at high RPM's too much.

[f150intally]

you should be good to go with the 50 trim .63a/r and a stage 5 wheel. stage 3 wheel will fall short of your top goal. but this turbo will pull hard to redline on a 2.0 liter.

Remember emperor, you can't have a REAL STRONG top end and REAL quick spool. You have to sacrifice a little if you want 400 whp.

[f150intally]

I wanted stage 3 50 trim with .63 turbine, but they're rare and expensive..so I got the 57 trim instead...should be just fine for some big numbers

Nick

Not true...i can get you one anytime you want and will beat anyone's pricing.

[rbsileighty]

Take a look at some of my old threads on this topic... I'm shooting for the same goal more or less. Do a search for my username and "turbo" or something...

Good luck... just make sure you have the required stuff to support the power

Keep in mind that a 2L needs the high RPM's to produce the necessary volumetric flow to create the power you want... just more info backing up what F150 just said

[emperor_lunchbox]

i was wondering what type of redline some people with modded Rb20's have. i saw a video a few weeks ago and there was a dude with an RB20 and he was up in the 9-10 thousand range. Obviously not stock. I think the car was tuned by Mines.

anyway so basically what i need is a high revving engine with a 50 trim .63a/r and a stage 5 wheel turbo to be close to 400 whp?

50 trim .63a/r and a stage 5 wheel I am assuming this is the compressor side. Does the exhaust side make a big difference with this turbo selection.

also where can I get a turbo like this? thanks

[f150intally]

i was wondering what type of redline some people with modded Rb20's have. i saw a video a few weeks ago and there was a dude with an RB20 and he was up in the 9-10 thousand range. Obviously not stock. I think the car was tuned by Mines.

anyway so basically what i need is a high revving engine with a 50 trim .63a/r and a stage 5 wheel turbo to be close to 400 whp?

50 trim .63a/r and a stage 5 wheel I am assuming this is the compressor side. Does the exhaust side make a big difference with this turbo selection.

also where can I get a turbo like this? thanks

50 trim is the compressor. .63 a/r with stage 5 wheel is the exhaust side.

I can get you one, pm for details.

[f150intally]

you may want to consider some cams and an intake manifold to get you 400 whp.

[DSMs_Suck]

I'm actually I'm going to have to disagree a bit...

I dunno about all that. I would go with a 50 trim t4 compressor (as everyone has stated before). Check the compressor map on this the map has more efficent islands and the map will cover alot more of the RB20s operate range.

On the exhaust side tho I would go with a stage 3 wheel... Especially if you are looking for a little better spool. I don't see there to be any need for a stage 5 wheel for a 50 trim. Hell I know plenty of people that run 60 trims, even 56 trim compressors on stage 3 wheels.

A 50-trim t4 compressor with a stage 3 t31 turbine wheel in a .63 housing is probably your best bet. That combo is good for about 500 whp.

[f150intally]

WTF? that is what i told him. a t3/t04e turbo is a t04 compressor with an e cover mated to a t3 turbine. this combination will not make 500 whp. the limit is about 400whp on this setup, that includes a stage 5 wheel. the stage 3 wheel will not get you to 400whp. Expect to see 21 psi by about 4600-4800rpm with a 2.0 liter 4 cylinder. it may be quicker on a 6 cylinder.

[DSMs_Suck]

WTF? that is what i told him. a t3/t04e turbo is a t04 compressor with an e cover mated to a t3 turbine. this combination will not make 500 whp. the limit is about 400whp on this setup, that includes a stage 5 wheel. the stage 3 wheel will not get you to 400whp. Expect to see 21 psi by about 4600-4800rpm with a 2.0 liter 4 cylinder. it may be quicker on a 6 cylinder.

I know what you are saying, and I know what a t3/to4e is... the area I disagreed with you on is the stage 3 wheel versus the stage 5 wheel.

Ok lets do it this way... Even if you don't intend to buy from PTE (where alot of people get the "sc61" or "sc50" etc... VERY good company), call up PTE and ask their opinion. FIRST HAND, a 50 trim t4 in an e cover with a stage 3 t3 turbine wheel in a .63 a/r t3 turbine housing will make EASILY over 400 whp (this turbo is VERY underrated, and I'm sure PTE will tell you this)... on a 2L:http://www.twingles.com/ideck/ <- 503whp on pump here

Also 4600-4800 full boost is crazy, most 2L 4s see 20psi around 4000.

[emperor_lunchbox]

F150 where could i find cams for the RB20?and what do you have in mind as far as the intake manifold?

[Yellow4g63]

RB 20 parts cams.PFC ect

use that page as a guied.

[emperor_lunchbox]

thanks alot for that site, has anyone ever ordered from that site before?

[Yellow4g63]

I almost did but I backed out because I had to fix my work truck That PFC was sooooooooooooooooooooooo close. Alot of the Down underguys buy from them.

[emperor_lunchbox]

i am assuming they are in Japan, I wonder how long it would take to get parts from them?

[Yellow4g63]

I ferget, I think he said 6days.

[BoostFab]

Ok lets do it this way... Even if you don't intend to buy from PTE (where alot of people get the "sc61" or "sc50" etc... VERY good company), call up PTE and ask their opinion. FIRST HAND, a 50 trim t4 in an e cover with a stage 3 t3 turbine wheel in a .63 a/r t3 turbine housing will make EASILY over 400 whp (this turbo is VERY underrated, and I'm sure PTE will tell you this)... on a 2L:http://www.twingles.com/ideck/ <- 503whp on pump here

Also 4600-4800 full boost is crazy, most 2L 4s see 20psi around 4000.

on PTE's site, the SC50 is rated at 450HP and the SC61 is rated at 680HP.

[DSMs_Suck]

on PTE's site, the SC50 is rated at 450HP and the SC61 is rated at 680HP.

I agree it may be rated for it, but first off the 50 is generally underrated.. Again call PTE if you dont believe me on it.

Also that comp wheel is rated for 49lb/min thats easily 400 whp.

[emperor_lunchbox]

does PTE have a website?

also does anyone know where i can get the carbon fiber door appliques? these go in that space between the rear quarter window and the door window. I have seen them before and cannot remember the site where i saw them for the life of me.

thanks.