Cast top mount questions
 

http://www.ebay.com/itm/GSP-B-SERIES...10d5be&vxp=mtr

What are the power ratings on these?
Junk?
Restrictive?

Thanks for any input.

Re: Cast top mount questions
 

What are your power goals?

I've seen people make 600 on a log so it will work fine

Re: Cast top mount questions
 

350-400.
I just like the top mount setups but didn't want to spend a total shit load.
Just was curious on these manifolds, never really seen a review on them.

Re: Cast top mount questions
 

You'll be fine

Re: Cast top mount questions
 

tyvm

Re: Cast top mount questions
 

one and made 400whp on a 57 trim garrett turbo. good manifold. be sure you get a trbo with a .60a/r compressor for best fitment. You can also get a clocking flange to make the turbo sit straight for better fitment

Re: Cast top mount questions
 

GT3251B is what I got from Shodan.
I removed a/c and p/s so should fit better?
It's replacing my tubular setup in my 92 gsr.

Was looking at this too:
http://www.ebay.com/itm/CXRacing-Hon...60858277809%26
Has a matching down pipe, seems like a good deal.
I have to use a 2.5" to 3" v band adapter though so gotta see if that will work or not.

Re: Cast top mount questions
 

thats not a cast top mount thats a tubular chinese pos top mount

you can retain ps and ac with the cast top mount

Re: Cast top mount questions
 

I realize that lol. Just was looking at others.
P/s would be nice to have again.

Re: Cast top mount questions
 

you can even make the stock ac lines work wityh some creative bending, replacements are cheap though to make fit better

Re: Cast top mount questions
 

Ac is over rated on a non daily lol

Re: Cast top mount questions
 

Ac is overrated period

Re: Cast top mount questions
 

Ac? We don't need no stinkin ac !

Re: Cast top mount questions
 

Exactly

I don't even use it in the cars that have it, gives ,e a headache

Hell I daily drove my s13 with no wipers, ac, heat, or blower motor.

Man shit lol

Re: Cast top mount questions
 

SO you keep a nice rag in the car on humid days if the weather changes while you're out for the day... yeah.. real man sh!t there, looking like a highschool kid with a towel in his hand wiping every 5 minutes.

I'm not saying there's anything wrong with no A/C, but all the rest...go ahead and DO YOU.

Re: Cast top mount questions
 

I never had fogging issues unless it was a warm humid night and even then it was rare. The civic won't have ac but I have a heat only vent for it.... I'll also be keeping the wipers lol

Oh Mac, I need to talk to you about the turbo dilemma, I got confirmation that the 2871/3071 wheels are internally threaded, the 2835 wheel is as well (same thing basically) but all the info I can find says the 2835 wheel has a smaller hub height, only about 1mm or so

Re: Cast top mount questions
 

my buddys old SPA/hx30 lol!

if anyone i know could break something it would be him. beat runs for hours every night and held up great. hes going big boy d series now lol.

Re: Cast top mount questions
 

Re: Cast top mount questions
 

I have one of these sitting on my desk that a customer shipped to us to have a downpipe made. The one thing I'd be concerned about here is the wastegate port. For whatever reason it is oblong and is larger than the OD of the wg fire ring. This could be a 1 manifold isolated, problem from this one particular ebay seller (I dont know which one it was)...but if you look at the photos of the wg port on any given auction, it isnt round.

Reference pic taken for our customer of our V2 next to the one that was delivered o us.

https://sphotos-b.xx.fbcdn.net/hphot...01462314_n.jpg

Re: Cast top mount questions
 

^^That would turn me off to buying one. Cast logs aren't very expensive...maybe toss a few more bucks into the mix and get something better. You can find reasonbly priced InlinePro SS manifolds from time to time in the Marketplace for ~$300.

If you're set on buying a cast manifold, its hard to pass this one by: http://www.go-autoworks-store.com/gocairbsedot.html . Its very inexpensive, looks to be made well and is more than enough for your goals. It may not be a topmount, but does that really make any difference?

**Just realized this last manifold requires a 5-bolt exhaust housing...I dont know which housing came with your GT32521b, but I would assume its a 4 bolt. Something to be mindful of when looking at various manifolds

Re: Cast top mount questions
 

Yes, they do. they have the same thread pitch too, you would use the retaining nut of the 2871R at the normal 20-25ft/lbs because with he lower height, it still should clear the backwall contour of the inside of the housing.

Re: Cast top mount questions
 

Yes, the 4 bolt turbine housing has a different rotation of where the compressor housing and downpipe meet than the 5 bolt turbine housing. I strongly recommend a tubular log manifold for this instead of using "cute" equipment like the cast mount that you were considering. I know the SPA versions require a clocking flange to fit as well, I'm not sure about the one you're considering, but it just seems so much more trouble than its worth.

The one on the right from Greg also looks not only oblong, but also looks like there's exhaust turbulence right at the fore-front. I'd avoid it at all costs.

Re: Cast top mount questions
 

Thanks,

If setting up to configure for for an A/C setup, then a 5 bolt/B cover turbo is needed for appropriate clearance. If its non a/c with a passenger side exit downpipe then you can use whatever T3 turbine outlet you want.

Re: Cast top mount questions
 

Probably too big for a 38mm fire ring but I bet it would fit that goofy wastegate you had to run on that one inline pro mani

Re: Cast top mount questions
 

He spa is defiantly better quality than these knock offs. Wastegate placement is perfect but that oblong opening isn't very good on that knock off unit. You don't need a clocking flange for a turbo to fit just fits better. You can run an E cover .60 and still retain ac and ps. It will fit an s cover without a clocking flange but not with one