Which turbo is best?

El Supracabras · 07-31-2011, 04:08 PM

Quote:

Originally Posted by dylansword

...... possibly bigger injectors and intercooler....

These shouldn't be optional for 18psi. Make sure engine health and maintenance are current first to be sure the engine (and car) is up to handling the upgrades. You really need a target HP number for anyone to suggest any upgrades.

Mk3FirstCar-Mike · 07-31-2011, 04:36 PM

A target horsepower just helps select a proper turbo that wouldn't produce too much lag. You also have to pick one that can handle that amount of power.

And I completely agree with you, Supracabras. If you're running that much boost, you need to upgrade your injectors and intercooler.

dylansword · 07-31-2011, 06:13 PM

I would like to get about 300hp to start with. Could I also get some recomindation on a bov. I like the classic, pshhh, not the wistel kind. I like the greddy rs. Anyone have. Any recomendations?

MA70-3.0GT · 07-31-2011, 06:26 PM

To be honest I think the CT26 as stock is pretty much up to handling 300bhp, anyone correct me if i'm wrong?

An upgrade of injectors is pretty much essential once you start to up the boost more, I got away with 11lbs on the CT26 and stock injectors (although see my other thread for what happened the other day

) and only very occasionally hit fuel cut when really giving it some boot. I believe (again anyone correct if I'm wrong) that Lexus LS400 V8 injectors are a bolt in & allow 100cc extra flow?

dylansword · 07-31-2011, 07:01 PM

300 is my base goal. I'm fine with hitting more. I would like a turbo, that I can turn down to about 10-12 at the start of my build and increase to about 18 as I continue to mod. Oh and how much can a stock headgasket handle?

Mk3FirstCar-Mike · 07-31-2011, 07:14 PM

The stock turbo can do 300bhp all day long. 18psi, however, I doubt it. I'd try and find a slightly bigger one, but that's just me. The headgasket on the 7m can be a wee-bit of a problem, though. I would certainly replace mine if I were going to be running anything past stock boost. As stated before, if you're going to be running higher boost, you need to make sure your engine is up to handling it and you need to upgrade your injectors/intercooler. I extremely recommend getting a new headgasket if you're going to be running that high boost. As to BOVs... I really can't tell you much about them... I'll look around YouTube and see if I can't find something that sounds epic for you. Though, to be honest, a wastegate is safer for your engine. The BOV is more to save your turbo.

dylansword · 07-31-2011, 07:49 PM

Any suggestios on turbos now? Also id like it to be a fairly direct bolt on.

Mk3FirstCar-Mike · 07-31-2011, 07:58 PM

http://www.youtube.com/watch?v=bUe3ODnUysM&NR=1

http://www.turbosmartonline.com/index.php?id=392

That's the only one that I could find that I actually liked.
Here's hoping?

El Supracabras · 07-31-2011, 10:49 PM

Quote:

Originally Posted by MA70-3.0GT

To be honest I think the CT26 as stock is pretty much up to handling 300bhp, anyone correct me if i'm wrong?..........I believe (again anyone correct if I'm wrong) that Lexus LS400 V8 injectors are a bolt in & allow 100cc extra flow?

That is asking alot from a stock ct26 don't you think?
Lexus 1UZ injectors are smaller almost 100cc's (remember no turbo). The boosted 1UZ guys are always looking for stock 7MGTE injectors if you want to sell your stockers. I would either get your stock injectors cleaned and re sized or suck it up and get the RC's.

Mk3FirstCar-Mike · 08-01-2011, 12:16 AM

As for choosing a turbo, I'd go with reading Garret TurboTech 101:
http://www.turbobygarrett.com/turbob...o_tech101.html
and Garret TurboTech 102:
http://www.turbobygarrett.com/turbob...o_tech102.html
and then looking through their product line:
http://www.turbobygarrett.com/turbob...ochargers.html
comparison sheet:
http://www.turbobygarrett.com/turbob...ison_sheet.htm

You really don't have to read the turbotech stuff, but it'll help you understand the dimensions of the turbos and the efficiency islands that they show.

If you still have questions about choosing one, I'll do my best to help tomorrow.

I would do this for you, but I feel like absolute s***.

07-31-2011, 04:36 PM	#2
Mk3FirstCar-Mike 3" Exhaust Join Date: Jul 2011 Location: Titusville, PA Posts: 54	A target horsepower just helps select a proper turbo that wouldn't produce too much lag. You also have to pick one that can handle that amount of power. And I completely agree with you, Supracabras. If you're running that much boost, you need to upgrade your injectors and intercooler. Last edited by Mk3FirstCar-Mike; 07-31-2011 at 04:39 PM. Reason: Fixing a typo

07-31-2011, 06:26 PM	#4
MA70-3.0GT 12psi boost Join Date: Oct 2009 Location: Crewe, England Posts: 356	To be honest I think the CT26 as stock is pretty much up to handling 300bhp, anyone correct me if i'm wrong? An upgrade of injectors is pretty much essential once you start to up the boost more, I got away with 11lbs on the CT26 and stock injectors (although see my other thread for what happened the other day ) and only very occasionally hit fuel cut when really giving it some boot. I believe (again anyone correct if I'm wrong) that Lexus LS400 V8 injectors are a bolt in & allow 100cc extra flow? __________________ '89 MA70 Supra GT aero 3.0turbo JDM, Rebuilt motor, K&N intake, 3" stainless turbo-back. New turbo and braided line kit... '89 Honda NC27 400, NC23 cams, open pipe, PC36a shock & possibly Showa USD forks... '83 Yamaha 29R XJ750E-II, number 69 off the line, only runner in the country? Original except Koni shocks '95 Honda PC26 CB500R, Winter hack, hateful, trying to sell it I'm not paranoid, they really ARE after me!!!

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07-31-2011, 06:13 PM	#3
dylansword 3" Exhaust Join Date: Jan 2010 Location: boise id Posts: 50	I would like to get about 300hp to start with. Could I also get some recomindation on a bov. I like the classic, pshhh, not the wistel kind. I like the greddy rs. Anyone have. Any recomendations?

07-31-2011, 07:01 PM	#5
dylansword 3" Exhaust Join Date: Jan 2010 Location: boise id Posts: 50	300 is my base goal. I'm fine with hitting more. I would like a turbo, that I can turn down to about 10-12 at the start of my build and increase to about 18 as I continue to mod. Oh and how much can a stock headgasket handle?

07-31-2011, 07:14 PM	#6
Mk3FirstCar-Mike 3" Exhaust Join Date: Jul 2011 Location: Titusville, PA Posts: 54	The stock turbo can do 300bhp all day long. 18psi, however, I doubt it. I'd try and find a slightly bigger one, but that's just me. The headgasket on the 7m can be a wee-bit of a problem, though. I would certainly replace mine if I were going to be running anything past stock boost. As stated before, if you're going to be running higher boost, you need to make sure your engine is up to handling it and you need to upgrade your injectors/intercooler. I extremely recommend getting a new headgasket if you're going to be running that high boost. As to BOVs... I really can't tell you much about them... I'll look around YouTube and see if I can't find something that sounds epic for you. Though, to be honest, a wastegate is safer for your engine. The BOV is more to save your turbo.

07-31-2011, 07:49 PM	#7
dylansword 3" Exhaust Join Date: Jan 2010 Location: boise id Posts: 50	Any suggestios on turbos now? Also id like it to be a fairly direct bolt on.

07-31-2011, 07:58 PM	#8
Mk3FirstCar-Mike 3" Exhaust Join Date: Jul 2011 Location: Titusville, PA Posts: 54	http://www.youtube.com/watch?v=bUe3ODnUysM&NR=1 http://www.turbosmartonline.com/index.php?id=392 That's the only one that I could find that I actually liked. Here's hoping?

08-01-2011, 12:16 AM	#10
Mk3FirstCar-Mike 3" Exhaust Join Date: Jul 2011 Location: Titusville, PA Posts: 54	As for choosing a turbo, I'd go with reading Garret TurboTech 101: http://www.turbobygarrett.com/turbob...o_tech101.html and Garret TurboTech 102: http://www.turbobygarrett.com/turbob...o_tech102.html and then looking through their product line: http://www.turbobygarrett.com/turbob...ochargers.html comparison sheet: http://www.turbobygarrett.com/turbob...ison_sheet.htm You really don't have to read the turbotech stuff, but it'll help you understand the dimensions of the turbos and the efficiency islands that they show. If you still have questions about choosing one, I'll do my best to help tomorrow. I would do this for you, but I feel like absolute s***.