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Know something about turbos

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vin123
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Postby vin123 » February 24th, 2010, 9:46 pm

question, what exactly is boost? I googled "boost", "what is boost in cars" and didn't come up with a good explanation.

Is a boost something different from having a "normal" turbo application or is it normal turbo?

I empty my cup and I'm willing to learn....

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Postby kimmm » March 10th, 2010, 2:06 pm

well guys , al this turbo talk , lol ..... just one thing,if i just wanna get a lil more boost out of the engine , not no kinda evo speed, how to select the turbo ?

basically i wanna turbo my d13b , just to raise the horse power a little, whats the best type of turbo to use and ,the most basic parts i might need to get?

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Postby Maserati » March 10th, 2010, 3:15 pm

vin123 wrote:question, what exactly is boost? I googled "boost", "what is boost in cars" and didn't come up with a good explanation.

Is a boost something different from having a "normal" turbo application or is it normal turbo?

I empty my cup and I'm willing to learn....


basically it is the compressed air the turbo charger generates.
remember one side of the turbocharger is essentially a compressor which sucks in air compresses it and then it goes usually to the intercooler then into the engine. It is measured commony in PSI (pound per square inch)


kimmm best to post your question in the honda forum as there may be some guys there who have turbo charged such an engine and will be better able to advise you.
As for basic parts here are some off the top of my head
turbo manifold
turbo charger
intercooler and the pipes
blow off valve
oil lines for the turbo charger
wide band gauge, boost gauge
some sort of engine management
perhaps change of exhaust pipe size.

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Postby vin123 » March 10th, 2010, 9:20 pm

Maserati wrote:
vin123 wrote:question, what exactly is boost? I googled "boost", "what is boost in cars" and didn't come up with a good explanation.

Is a boost something different from having a "normal" turbo application or is it normal turbo?

I empty my cup and I'm willing to learn....


basically it is the compressed air the turbo charger generates.
remember one side of the turbocharger is essentially a compressor which sucks in air compresses it and then it goes usually to the intercooler then into the engine. It is measured commony in PSI (pound per square inch)


thanks Maserati

Ok, so basically every turbo engine is "running boost" whether it be in stock form or increased,right?

If that statement is true why do ppl on this site advise other ppl that if they're going down the boost road to make sure and do research? Do they mean that interms of increasing the boost pressure?

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Postby Maserati » March 10th, 2010, 11:11 pm

Yea once u running a turbocharged engine you boosting as they would say

I think for the research part they mean if you are going to turbo charge a N/A engine
like research how much boost an engine can take without various parts failing
look at what others have done in the past and learn from their mistakes

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Postby vin123 » March 10th, 2010, 11:18 pm

ok cool..one more question what does it mean when u hit boost while driving?

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Postby Maserati » March 11th, 2010, 11:12 pm

vin123 wrote:ok cool..one more question what does it mean when u hit boost while driving?


this is when the turbo comes up to speed for it to build boost and operate efficiently.
a certain amount of exhaust gas is required for turbo to begin spooling up and compress air / build boost.

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Postby De Dragon » March 12th, 2010, 12:06 am

Maserati wrote:
vin123 wrote:ok cool..one more question what does it mean when u hit boost while driving?


this is when the turbo comes up to speed for it to build boost and operate efficiently.
a certain amount of exhaust gas is required for turbo to begin spooling up and compress air / build boost.

Correct, usually at a certian RPM, you've built enough exhaust gas pressure to cause the turbocharger to boost.

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Postby X2 » March 12th, 2010, 12:32 am

Explaination of 'Turbo lag / boost lag' is hard to get across with out experiencing it but you can think about turning on an electric fan. You don't get breeze (boost) immediately even tho the fan starts spinning when you hit the switch. Take a few seconds for the fan to buil enough momentum and air speed to have an impact. Once it gets there, it's good and powerful (being on boost or having boost come in, etc...)

Turbos can be matched to an engine size and possibly tailored to engine power/powerband if you have enough time. Turbo compressor maps are available and the formula to work out a turbo's efficiency range is readily available. Many stock turbo cars have turbos that are a good start for basic projects... pull a turbo from a similar displacement stock car an you can get easy performance as a start. Turbo systems can be very fickle... much like any other part of an engine, the wrong parts can result in subpar performance. The right turbo with the wrong downpipe can cause issues... leaky wastegates can lose power and lengthen spool time. A turbo that outflows the capacity of the intercooler can go so far as to spike the boost, or blow off couplings.

Turbo is just really fun, but doing it right takes time, research and sometimes trial and error.

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Postby vin123 » March 12th, 2010, 8:37 pm

okay thanks Maserati, De Dragon & X2for clearing that up!!

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Re: Know something about turbos

Postby 1800GSRLANCER » July 18th, 2010, 7:14 pm

i must say that this is the oldest ched i ever came across on 2nr! but none the less it's an excellent post! i also didn't know of an "EGT" gauge.

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Re: Know something about turbos

Postby sgcrichi » December 6th, 2010, 11:39 am

Excellent and very useful information, Every raider and turbo fan need to read it once.

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Re: Know something about turbos

Postby .:PROZAC:.. » December 18th, 2010, 2:11 am

For detailed information on over 100 T2 flanged turbos that are available see this posting.

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Re: Know something about turbos

Postby V2NR 3.0 » December 23rd, 2010, 8:59 am

Good information...nice read

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Re: Know something about turbos

Postby speedaholic » December 31st, 2010, 4:01 pm

excelent thread!...

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Re: Know something about turbos

Postby GA15DE-T » July 4th, 2011, 5:11 pm

nice info
Last edited by GA15DE-T on August 4th, 2013, 9:36 pm, edited 1 time in total.

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Re: Know something about turbos

Postby S.W 15 » July 15th, 2011, 2:24 pm

Good info!

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Re: Know something about turbos

Postby JohnMartyn » November 15th, 2011, 5:14 pm

i think it would have to be heavily moded to put a turbo on it but what about a cold air intake that would add a good amount of power.I have seen after market one for the Rappy and 400Ex but not the 300ex.

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Re: Know something about turbos

Postby RoadRunnerGTR » January 21st, 2012, 12:28 pm

now saw this great article! :mrgreen:

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Re: Know something about turbos

Postby nightwish090 » April 7th, 2013, 1:10 pm

Awesome info bro,looking into turboin my sr20 neo vvl and this providing a lot of the info which I needed :) does anybody who's done this before have any basic do's and don'ts? And how much boost is it capable of taking? Ty :)

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Re: Know something about turbos

Postby amitrajput » July 3rd, 2013, 5:29 am

It's a really a good article. It is helpful thread and I like this and must say - you did a great job.

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Re: Know something about turbos

Postby Zorak » December 7th, 2013, 7:35 pm

I have a question regarding the management system. Do they completely replace the stock ecu or do they work in conjunction with it? How do you go about selecting a management system also? I usually see systems that are for a particular car, but what do you do when you're gonna turbo a non-turbo car that there are no turbo alternatives to and no aftermarket ecu's developed specifically for it? Taking into consideration that the vehicle is VVT as well. If that matters.

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Re: Know something about turbos

Postby Zorak » December 7th, 2013, 7:51 pm

Just doing some more reading and I guess a stand alone system would be the best for boosting an n/a car. Still want some info on what needs to be considered with the vvt.

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Re: Know something about turbos

Postby TurboSingh12 » May 15th, 2015, 9:21 am

If you are using a standalone its a complete brain and universal harness and if its a piggyback it will work together with your ECU.Most modern managements come with feature to control valve timing,ignition and boost retard system so it can be used on a DE-T engine.

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Re: Know something about turbos

Postby Achilles » August 11th, 2015, 11:23 am

Hey guys and experts, can you tell me which brand is better between Kinugawa and FP? I heard that FP turbos used to blow up in Subarus back in 2006/2007 but does that mean they are no good or has the quality of FP turbos improved since? I have an Evo 3 4g63 motor and I would like to replace the stock turbo with a dependable brand replacement "stock for stock" turbo. My choices are the FP Black Evo3 stock turbo and the Kinugawa Evo3 20g stock turbo. I have no reviews on Kinugawa at the moment even though I searched for some. Can someone offer some expertly advice?

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Re: Know something about turbos

Postby Steve McInally » October 21st, 2015, 6:31 am

Very informative thread.

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Re: Know something about turbos

Postby TurboSingh12 » October 27th, 2017, 6:49 am

Pluence wrote:turbos are the best thing ever!!!


Honestly Boost was created for single men.

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Re: Know something about turbos

Postby Jerron_speed » June 28th, 2019, 8:07 pm

nice thread

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