I've called AMS several different times trying to find out if they offer they're 5-bolt exhaust housing in a .82 a/r (mine is the .63 a/r).

Well I get a different story everytime. Sometimes they say yes and sometimes they say no. So I'm pretty confused.

Well the times that they say no I ask them about their HTA kits which here is the link http://www.amsperformance.com/store/...oducts_id=1893

well sure enough at the top of the page it says AMS EVO VII/VIII/IX GT3582HTA Turbo Kit

I wouldnt think that the design of the 02 housing and hotside would be different between they're standard 35r and the HTA. and even if there are differences is there anyway I could convert my housing/o2 housing to whatever it would take to accept a .82 housing?

I'm really looking into trying to get the .82 if it exists...

if anyone knows any info on this please help. I've trying calling them probably 5 times and get different answers everytime.

 

Not sure but the pte 5 bolt .82 isn't the same as a .82 4 bolt gt housing. The pte
.82 you are looking for would be more laggy then most 35R's people run. Just stick with the .63 it's close to a 4 bolt .82.

 

That is the name of the turbo... That 82 does not correspond to .82 AR hotside..

I do not believe that they make a 5 bolt .82.. I believe you will have to switch to a 4 bolt o2 housing : /

 

same here mine im looking for that .82 .... ???

 

I don't think there is a way to switch to the 4 bolt housing while still keeping the same wastegate and downpipe placement. if ya'll know please chime in. Me and my tuner both felt that since my car is a 2.3 liter that the .63 housing is holding me back a fair amount. if there is anyway ya'll know to "convert" to 4 bolt then please share

 

Is there a particular reason you want a .82 a/r ?

 

More top-end I suppose.

 

Yes sir, Exactly right

I really think that with the 2.3 liter the pickup would be significant

 

And you are 100% correct.

That back-half is holding you back for sure. You may consider going with a gt-spec v-band turbine section (.82 a/r). You will lose NOTHING in spool and pick up over 50awhp. I've seen it with my own eyes.

As for the ams configuration, your only option is is simple. You will have to weld a pipe to the ams header collector for the wastegate to connect with. ( Again, I've seen it work already very well).

In case you were wondering how much it's choking you,,,,,

 

^ Now thats a big difference! My .68 should work wonders, can't wait to see

 

wonder if I could just bite the bullet and buy a Buschur manifold then buy a 4 bolt .82 back housing. I really don't know if I want to hack into the AMS manifold. Because I've heard that wastegate placement has a big effect on spoolup. So it's something I'd want to get exactly right.

I'd be up for buying a buschur manifold without the turbo and then just prolly selling my ams stuff (except the turbo)

Just really wish AMS would offer one!!! lol

 

such misinformation in here! when AMS designed their kit they tested many hotsides for the 35r. The one chosen is cast by precision. It is labeled as 63 by is well know to flow like the 82. their 48 was also known to out spool 63s with 5psi less back pressure. You should call martin directly and talk to know one else down there. 50 horsepower gain is complete hogwash. prolly referring to freddy who recently gained 50hp by getting rid of 2.25 02/p63. and switching to 3 inch 02with g82. the picture posted is from that thread. my response to that observation in noted below.

I have not yet seen anyone top the AMS built 35r car that was hitting 35psi at 4100rpm on a 2.0. Video proven. The kit they sells rocks in design and performance. My advice is look else where for gains.


I would not be jumping to conclusions about the exhaust housing as being the sole reason for the big improvement seen here. I have seen the RNR kit and it is poorly designed. The worst part was the 02 housing design. The header in this kit places the turbo too close to alternator. so when they made the 02 they had to use 2.25 tubing and a very sharp turn to get it to clear the alternator. The 02 housing was the reason the setup was seeing excessive back pressure. Not the precision .63. I use the precision .63 on my car. Breathing through a stock intake mani, cast exhaust mani, and proper 3 inch 02 it layed down 620/567 on reg 35r. 93 octane with meth. It was poised to make more but I was out of fuel.

Also keep in mind these dyno numbers from this dyno do not read low. they look like they read higher than a dynojet. performance form green proves that.
FP Green: 487 whp/510 trq = 11.2 @123 (1.78 60ft) (98mph 1/8)
thats a very weak track time for those numbers. 380whp on Buschur dyno will get those track times.

I would say congratulations on finding the restriction in your setup. 2.25 02 with sharp turn has no business on 35r setup.
__________________

 

hows that? its a forum ya need to share the info that you know!!! Let us know what the real info is

 

I agree with some of what you said but I wonder if AMS did their backhousing testing when designing their turbo kits using mostly the 2.0 liter or the 2.3 liter engine. I'm just thinking with the 2.3 liter it would be a bigger difference than with the 2.0. BUT who knows, thats something I'm willing to test out on the dyno if I'm ever able to get one on there

 

Great conclusions, but your facts are a little twisted. Rather than to get involved with another internet 'tango', I'll just stand by what I said as fact.

ps. Freddy's green track numbers/boost levels were different from track to dyno. I
guess you can throw that conclusion out of the window.

Until you take the precision .63 out of the car and try a garret gt v-band, you don't know the facts.


Why did you only trap 134 with 620/567?