0.86a/r question

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0.86a/r question #768606 09/02/2009 10:50 09/02/2009 10:50
Joined: Jul 2006 Posts: 1,671 Newport,south wales B Benny OP My life on the forum
Benny OP My life on the forum B Joined: Jul 2006 Posts: 1,671 Newport,south wales	I have a gt28rs with a 0.64a/r housing and i was woundering if a company like TD could swap the housing over to a 0.86 one $\:\)$ or would i need to buy a complete turbo with a 0.86 housing Ben

Re: 0.86a/r question [Re: Benny] #768615 09/02/2009 11:04 09/02/2009 11:04
S suba Unregistered
suba Unregistered S	I'm sure that they could swap the housing for you, but it would be expensive, and I doubt you would notice that much of a gain in performance? $\:\?$

Re: 0.86a/r question [Re: ] #768627 09/02/2009 11:22 09/02/2009 11:22
H Hani Unregistered
Hani Unregistered H	suba.. shouldn't Benny be getting more power / hold higher boost at the top end and get more lag on the low end with the 0.86 A/R housing?

Re: 0.86a/r question [Re: ] #768628 09/02/2009 11:22 09/02/2009 11:22
Joined: Dec 2005 Posts: 5,405 Castle Combe Flea Forum is my life
Flea Forum is my life Joined: Dec 2005 Posts: 5,405 Castle Combe	If you can get hold of one it can be done by yourself. You'll loose around 400-500rpm spool but it will give you a little more top, end not that you really need it Benny. There are some cars that just seem to make a little more power than most for no obvious reasons, yours is one $\:\)$

Re: 0.86a/r question [Re: ] #768651 09/02/2009 11:57 09/02/2009 11:57
S suba Unregistered
suba Unregistered S	Originally Posted By: Hani suba.. shouldn't Benny be getting more power / hold higher boost at the top end and get more lag on the low end with the 0.86 A/R housing? yes - but it's not going to be a world of difference just changing the housing, and will require a remap etc....

Re: 0.86a/r question [Re: ] #769068 09/02/2009 19:51 09/02/2009 19:51
J jtm Unregistered
jtm Unregistered J	in a little bigger turbos ( gt3071r ) the difference is : spooling = 500rpm later for bigger one power = 25-30hp more for bigger one. thats what I´ve seen on that 3071r turbo.. so a little less hp difference with smaller turbo I believe.

Re: 0.86a/r question [Re: Flea] #769286 09/02/2009 23:24 09/02/2009 23:24
Joined: Jul 2006 Posts: 1,671 Newport,south wales B Benny OP My life on the forum
Benny OP My life on the forum B Joined: Jul 2006 Posts: 1,671 Newport,south wales	Originally Posted By: Flea If you can get hold of one it can be done by yourself. You'll loose around 400-500rpm spool but it will give you a little more top, end not that you really need it Benny. There are some cars that just seem to make a little more power than most for no obvious reasons, yours is one $\:\)$ I'll phone a few place's in the week and see if i can just get a housing $\:\)$ Ben

Re: 0.86a/r question [Re: ] #769292 09/02/2009 23:32 09/02/2009 23:32
Joined: Jul 2006 Posts: 1,671 Newport,south wales B Benny OP My life on the forum
Benny OP My life on the forum B Joined: Jul 2006 Posts: 1,671 Newport,south wales	Si, it's not for my current setup $;\)$ bar a few odds and ends hopfully later in the year im going to get a forged engine built $;\)$ And for my needs and requirments i dont need 400bhp+ $\:D$ Ben

Re: 0.86a/r question [Re: Benny] #769412 10/02/2009 09:16 10/02/2009 09:16
Joined: Nov 2006 Posts: 1,580 Melbourne, Australia Scuderia My life on the forum
Scuderia My life on the forum Joined: Nov 2006 Posts: 1,580 Melbourne, Australia	Larger housing will also give more power and torque at the same RPM. The more boost you run the more significant it will be. Its not only top end power.

Re: 0.86a/r question [Re: Scuderia] #769594 10/02/2009 13:51 10/02/2009 13:51
E eldinho Unregistered
eldinho Unregistered E	I would personally go for a 2871R 0.64 over a 28RS 0.86!

Re: 0.86a/r question [Re: Scuderia] #769667 10/02/2009 14:53 10/02/2009 14:53
S suba Unregistered
suba Unregistered S	Originally Posted By: Scuderia Larger housing will also give more power and torque at the same RPM. The more boost you run the more significant it will be. Its not only top end power. Not at 3000 rpm it wont.

Re: 0.86a/r question [Re: ] #772186 13/02/2009 11:56 13/02/2009 11:56
Joined: Jul 2006 Posts: 1,671 Newport,south wales B Benny OP My life on the forum
Benny OP My life on the forum B Joined: Jul 2006 Posts: 1,671 Newport,south wales	I have found that owen developments will sell me a 0.86 housing for £158 exculding vat+del Ben

Re: 0.86a/r question [Re: ] #772253 13/02/2009 13:06 13/02/2009 13:06
Joined: Dec 2005 Posts: 17,367 Staffordshire Nigel Forum veteran
Nigel Forum veteran Joined: Dec 2005 Posts: 17,367 Staffordshire	Originally Posted By: eldinho I would personally go for a 2871R 0.64 over a 28RS 0.86! that was exactly my choice I'd seen GT28RS (0.86AR) hit 350bhp and even 370bhp, but I knew I wanted more than that AND I wanted full boost as early as I could, so a bigger compressor on a smaller turbine housing was the way to go I think I'm fairly close to the limits of mine now (without more headwork), but its driveable, not too laggy and goes like stink at the top end

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