The Turbocharger thread - Page 2 - Saxperience

jsdvtr · 5th February 2012, 18:31

Whats the gt25r's like?

Anyone know what sort of power they go upto and spool times?

dannygti · 5th February 2012, 19:11

Sounds ideal for the quick spooling road car Martin.

Jamie, they will make around 210-220hp@wheels at 1bar from a few results I've seen. A lovely power band and spool time for a fast road car

JoshB · 5th February 2012, 19:20

Complete boosting noob here.

If you're wanting to run silly power, you just need forged pistons don't you? Forged rods are just for silly rpm aren't they?

Also what can the stock inlet manifold take? Nearly bought a C2 Vts inlet the other day but just out of my price range!

jsdvtr · 5th February 2012, 19:51

Quote:

Originally Posted by dannygti

Jamie, they will make around 210-220hp@wheels at 1bar from a few results I've seen. A lovely power band and spool time for a fast road car

Well looking at paxo89s turbo, his made 222atw at 14psi. What you think too it against a gt28rs? Spool time would be alot quicker with the 25?

dannygti · 5th February 2012, 19:55

Quote:

Originally Posted by JoshB

Complete boosting noob here.

If you're wanting to run silly power, you just need forged pistons don't you? Forged rods are just for silly rpm aren't they?

Also what can the stock inlet manifold take? Nearly bought a C2 Vts inlet the other day but just out of my price range!

Not 'that' simple. Torque will hurt rods just like rpm. The more torque the car makes the more strain. Multiplied when torque is made at lower rpm. There is more strain for example if a car makes 200lb ft at 3k rpm than if it makes 200ft lb at 5k rpm.
Also, the engine will become restrictive once it flows a certain amount of air so the more air you try and force in will create heat and restriction. So you might be giving the engine 30psi and making 300hp for example bit if you flowed the head/inlet and added bigger inlet valves then you would make the same power at a lot less boost pressure. Like 300hp at 20psi for example.

The standard inlet has taken upto 2bar of boost from what I have know. A c2 inlet does seem a good move and it looks well suited to flowing more air than the standard inlet. Back to back tests with the same spec havnt really been done so it's pure guesswork I suppose.

dannygti · 5th February 2012, 19:59

Quote:

Originally Posted by jsdvtr

Well looking at paxo89s turbo, his made 222atw at 14psi. What you think too it against a gt28rs? Spool time would be alot quicker with the 25?

Like I said lol 210-220@wheels. Shauns car made 217@wheels with gt25r so fairly consistent.
A gt28rs is a different game all together. One turbo makes 220@wheels the other makes around 290-300@wheels depending on spec.
The gt25r will spool up around 1k-1.5k quicker.

Chris_O · 5th February 2012, 20:03

Does anyone rough spool times etc with the gt17?

blackie_2k5 · 5th February 2012, 20:25

Gt17 should reach a bar by 2.2k if using a decent sized intercooler and 2" pipe going off what ive seen

blackie_2k5 · 5th February 2012, 20:26

But i wouldn't want to run a bar on a gt17 lol

Should be instant power either way tbh

yr51ocw · 5th February 2012, 21:04

a nice size for a 16v engine would be a GT2052 or GT2256. If i were going to turbocharge mine I would be looking for one of these two.

dannygti · 5th February 2012, 21:10

Quote:

Originally Posted by yr51ocw

a nice size for a 16v engine would be a GT2052 or GT2256. If i were going to turbocharge mine I would be looking for one of these two.

I agree here Marc, the gt22 looks perfect for a small cc engine. I'm sure they make as much power as the gt25 too perhaps more?

Sophia_Bush · 5th February 2012, 21:29

gt20/22 will be my next upgrade since flange is the same

dannygti · 5th February 2012, 21:47

Seems a perfect turbo tbh, if it would be able to hold full boost till redline then it would male one great turbo. Upto 280bhp it says and no doubt would be on full boost by 3k

http://www.turbobygarrett.com/turbob...t/turbocharger

Chris_O · 5th February 2012, 21:48

So basically if I got this gt17 that rorz-vts has got, the cituning one, i would need a cituning downpipe? What about mani?

dannygti · 5th February 2012, 21:50

Quote:

Originally Posted by Chris_O

So basically if I got this gt17 that rorz-vts has got, the cituning one, i would need a cituning downpipe? What about mani?

You'd need the cituning manifold ideally. At least then you know it would all fit.

Chris_O · 5th February 2012, 21:58

Quote:

Originally Posted by dannygti

You'd need the cituning manifold ideally. At least then you know it would all fit.

Ok. In your opinion what would you do on a budget 16v conversion in regards to turbo/ mani/ downpipe? Cheaper way of doing then buying off the shelf parts from cituning?

dannygti · 5th February 2012, 22:04

Quote:

Originally Posted by Chris_O

Ok. In your opinion what would you do on a budget 16v conversion in regards to turbo/ mani/ downpipe? Cheaper way of doing then buying off the shelf parts from cituning?

I wouldn't do it a cheaper way. Unless I could make my own up I would buy the cituning kit or better. That's just me. Some people mod the standard cast manifold with an adapter plate.

There are some turbo conversion threads to take a look at. I wanted this particular thread to be more turbocharger focused.. More specialised and not just another 'how to turbo my car' thread... (not meant in a funny way though)

Sophia_Bush · 5th February 2012, 22:06

just looking at the 2052s very interesting what cars they came on should be easy enough to get one

dannygti · 5th February 2012, 22:12

Quote:

Originally Posted by Sophia_Bush

just looking at the 2052s very interesting what cars they came on should be easy enough to get one

What cars gav?

Sophia_Bush · 5th February 2012, 22:17

they came on some VAG group cars & some MGs I same some as in going by the common flange the T* style one most use the rest are weird triangle flanges to the manifold