Godspeed 90mm Throttle Body + Intake manifold

Discuss the RB20, RB25 and RB26 series engines.
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TheKon
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So I was surfing the web trying to inhale as much information possible about the RB25 motor when I found the godspeed makes a "Greddy" Style manifold for a fraction of the price along with a bigger throttle body. Now is this too good to be true and junk or is this possibly a really good value? Everything seems good, the manifold comes with what looks like all the hardware, they even make a fuel rail for the RB. I'm in the dilemma of scrapping my SR20 motor (long story) and buying another SR20DET or pursuing the saying 'there's no replacement for displacement' with an RB25DET. I'd love an RB26 but it's hard to swallow the $4500 price tag, but anyway. Can anyone offer any insight towards this manifold and throttle bodies? Thanks in advance guys!-Konstantin.


Bluefire
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junktacular!!! Search this forum for greddy knock-off manifolds, its been discussed... I am not a fan of the cheapy china TB's. I have seen many leak, as well as a lot of head scratching to make the tps work on them.

Besides if you don't have an RB yet and your already thinking of cheaping out, your gonna have a rocky road ahead of you...

Support Greddy! Support the companies that have helped build the import scene, not the companies that try and take from it!

boosted98gst
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Bluefire wrote:junktacular!!! Search this forum for greddy knock-off manifolds, its been discussed... I am not a fan of the cheapy china TB's. I have seen many leak, as well as a lot of head scratching to make the tps work on them.

Besides if you don't have an RB yet and your already thinking of cheaping out, your gonna have a rocky road ahead of you...

Support Greddy! Support the companies that have helped build the import scene, not the companies that try and take from it!
+1 even if this crap worked half way decent. Id never buy and support these china based companys.

rb25det250sx
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idk..most godspeed stuff is nice. that TB looks legit but the godspeed mani has fitment issues. i remember someone talking about how they had trouble with it in a past thread. if your going Rb spend the dime and do it right the first time.. dont cheat the motor. or your in for a world of hurt.

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TheKon
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Ok...well...let me say this then. I'm not going to spend $800 on a manifold, my credit just aint THAT good. I'd support Greddy all day long, but I can't afford to keep them in business. So anything else that you guys may subject?EDIT:I actually did a little bit more searching and found the ISIS manifold. Looks the same but didn't see any complains. What about exhaust manifold any suggestions? My big hurry on the intake manifold is A. I hate the position of the stock throttle body and that stupid pipeB. I don't want to start tearing into my hood with a dremel.
Modified by TheKon at 8:19 PM 8/29/2009

boosted98gst
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If your doing a rb swap and you do it right the first time and use mount kit, you do not have to cut your hood at all. Would you rather spend money on janky parts, or put it towards nice mount kit? Do you even have a rb right now? You should worry about doing doing the swap and doing all the maintence, you realize this is alot more then your average sr swap right?

Bluefire
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What makes you think the Isis manifold would be any different? Because Enjuku Racing sells it? All the knock-offs are made in a few companies in china. Then companies like Godspeed and Enjuku Racing, buy them up, and brand them there own.

Do yourself a favor and save up for the greddy, you won't regret it.

And just in case you think i'm talking out of my a**. I've installed a few knock-offs for people in the past and I will never install another one again.Casting is terrible. They never include installation hardware, and if they do have the stuff they give doesn't work, ie wrong thread pitch. manifold doesn't fit the head, it usually requires grinding out the holes. A few other issues as well, but just can't remember them right now. I'm trying to block out the bad memories :D

boosted98gst
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Bluefire wrote:What makes you think the Isis manifold would be any different? Because Enjuku Racing sells it? All the knock-offs are made in a few companies in china. Then companies like Godspeed and Enjuku Racing, buy them up, and brand them there own.

Do yourself a favor and save up for the greddy, you won't regret it.

And just in case you think i'm talking out of my a**. I've installed a few knock-offs for people in the past and I will never install another one again.Casting is terrible. They never include installation hardware, and if they do have the stuff they give doesn't work, ie wrong thread pitch. manifold doesn't fit the head, it usually requires grinding out the holes. A few other issues as well, but just can't remember them right now. I'm trying to block out the bad memories :D
My broke a** friend bought one for his rb about a year ago, this POS manifold needed so much work to even fit, the injector ports had to be grinded out and re worked, the holes did not line up, the ports did not line up with the gasket. He ended up junking it.

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TheKon
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Bluefire wrote:What makes you think the Isis manifold would be any different? Because Enjuku Racing sells it? All the knock-offs are made in a few companies in china. Then companies like Godspeed and Enjuku Racing, buy them up, and brand them there own.

Do yourself a favor and save up for the greddy, you won't regret it.

And just in case you think i'm talking out of my a**. I've installed a few knock-offs for people in the past and I will never install another one again.Casting is terrible. They never include installation hardware, and if they do have the stuff they give doesn't work, ie wrong thread pitch. manifold doesn't fit the head, it usually requires grinding out the holes. A few other issues as well, but just can't remember them right now. I'm trying to block out the bad memories :D
I found a thread here on NICO basically asking what other options exist for a manifold, someone suggested ISIS because apparently there shop has had good luck with them. The ISIS and godspeed look exactly the same. In fact I have a Nissan magazine somewhere with a 240sx with SR20 with the ISIS manifold.Now also are you guys talking about installing the manifold with the motor in the car or with the motor on an engine stand. I plan on installing most of my bolt ons with the engine out of the car. You think that might make the installation a little less painful?

Bluefire
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You know what just go ahead and buy the manifold... Your clearly not listening. I now realize that you just made this post in hopes of finding someone to make you feel better about your potential purchase. I guess some people just have to take the hard road to see for themselves.


crazyandevil05
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as someone who wen the greddy intake route, trust me, it is worth the extra money. after gettiung it, did a side by side before i installed it with a knockoff sr, and you could tell the casting was way better with mine. the only problem i had was getting to some bottom bolts, all the air valves, oil cooler and junk underneath got in the way. but really, i have seen some awsome stock manifold builds, with a fmic with same side entry/exit. also seen one manifold that bolts onto the the stock bottom piece, but puts the throttlebody on the pass side. and yes, i second (or third, where ever i am in the supporting line) do not worry about buying aftermarket until the engine is in the car and you're driving it.

b00stinbmx
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rb swaps and going cheap are going to equal your car in the garage more than you driving it... just a thought.

rb25det250sx
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Talk to ricky at Raw brokerage.. im PERTY sure that the ISIS has no fitment issues, and there nice manifolds

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TheKon
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Bluefire wrote:You know what just go ahead and buy the manifold... Your clearly not listening. I now realize that you just made this post in hopes of finding someone to make you feel better about your potential purchase. I guess some people just have to take the hard road to see for themselves.
Look dude, don't patronize me. I understand this is not a simple plug and play swap, and honestly if I can't see someone that says "Yes consistently I've had issues with these specific manifolds, or greddy out flows it like crazy, or they crack, or it's a s*** product and here are the following reasons because I had one for a few months and these are the problems I ran into...blah blah blah." Unless it has a Nissan stamp on it, I'm well aware there will be fitment issues, I also understand not all castings are the same, for all you know most that post something negative could have a defective piece, I know people are most likely to whine about a bad product than to praise a good one. We're not talking about a $25 difference in price. But honestly, if I can't see something that makes me feel I need to go one way or another, I'll simply ignore the stupid hideous pipe and the stupid extra bend for the intercooler piping. I already planned on custom motor mounts (I've got a whole winter I need to fill). I can assure you all, I'm pretty experienced with wiring, very crafty and creative, and have a Nissan Master technician vetoing any stupid idea I run past him, and of course he will be helping me through the entire install. So please don't assume I'm this punk kid with a 240sx who wants to put a loud a** system in it w/ 20" rims for the sheer "coolness" of the RB. I think it'll be a more reliable engine, better for power, and definitely more fun to work on. So please don't patronize me. If you feel that I'm ignoring your post, I'm sorry. I'm not trying to be ignorant, I'm just waiting for the response that makes a ding that says yup...screw that idea...or yay! lets add it to the list. And just so you know. I'm not buying a knockoff turbo manifold, because I know they crack. Thats the solid bit of info I received and that's whats going to cost me a lot of money, hence why I'd like to save every bit of money I can, because I'd rather work on a motor while its on a stand, not in an engine bay.

rb25det250sx
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TheKon wrote:
I'm this punk kid with a 240sx who wants to put a loud a** system in it w/ 20" rims for the sheer "coolness" of the RB.
lol thats me. but i only got 17s =(..

anyways i've herd good things about the isis mani. and the knock off greddy mani has fitment issues. but NOTHING that cant be fixed wit a dremel. lol do what u want its your money. were jus giving advise from personal experience. . . personaly i hate people that criticize(or however u spell it) but take it like a champ trust me it'l make u a better person. but anywho. spend the dime. save up for the good stuff. . .it'll really help out i promise u... if u dont think so talk to the big guys

I.E Darius, gawdzilla,HxCnismo, Cmarkzj2z. ECT.

Kalypso
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Bluefire wrote:junktacular!!! Search this forum for greddy knock-off manifolds, its been discussed... I am not a fan of the cheapy china TB's. I have seen many leak, as well as a lot of head scratching to make the tps work on them.

Besides if you don't have an RB yet and your already thinking of cheaping out, your gonna have a rocky road ahead of you...

Support Greddy! Support the companies that have helped build the import scene, not the companies that try and take from it!
yes!
boosted98gst wrote:

+1 even if this crap worked half way decent. Id never buy and support these china based companys.
yes!!
Bluefire wrote:You know what just go ahead and buy the manifold... Your clearly not listening. I now realize that you just made this post in hopes of finding someone to make you feel better about your potential purchase. I guess some people just have to take the hard road to see for themselves.
yes!!!

op you fail... rent a mig welder and make your own manifold... stop buying knock-offs

support GREDDY

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TheKon
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Honestly dude...I could make my own turbo manifold but on that I'd rather spend the coin. And I'd support greddy...if there product truly was worth the $800 price tag..not to mention they're obviously not the only manifold manufacturer...if there's an equally good product for a fraction of the price I'm going to buy it. If it doesn't compare then I won't bother. I'm sure you've bought aftermarket parts instead of OEM because they "cost less" you should support NISSAN buy OEM long blocks, not cheap imports. Otherwise I'd sooner run the stock manifold. Nothing against greddy, I'm considering their e-Manage, and if I had a money tree in my backyard, don't you worry, I'd buy all Greddy, HKS, and AEM parts. But sadly I'm not made of money....at least not yet anyway. So I guess I'll have to do my own research and contact godspeed directly.rb25det250sxThanks man.

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Chaos the Xile
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dude listen, every vet on this forum will agree, NEVER EVER go cheap with your RB. Yes it is an expensive engine and if you cheap out of parts you will regret it and end uo in the NRRBA. Trust and believe! Buy real s***! Do it right the first time

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TheKon
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I completely agree, but this is an intake manifold, not a part of the rotating assembly. If this was a question about cams, or head studs, or even pistons, I wouldn't be asking if cheaper is comparable. Basically I just want to see someone who's not knocking on it because its an off brand, but a flawed design or dangerous application and why....just something other than, buy greddy because we like greddy. Or cheap stuff is cheap because it's low quality. There's plenty of items in this world that are cheaper than their big brand counter part and just as good.

Bluefire
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TheKon wrote:I completely agree, but this is an intake manifold, not a part of the rotating assembly. If this was a question about cams, or head studs, or even pistons, I wouldn't be asking if cheaper is comparable. Basically I just want to see someone who's not knocking on it because its an off brand, but a flawed design or dangerous application and why....just something other than, buy greddy because we like greddy. Or cheap stuff is cheap because it's low quality. There's plenty of items in this world that are cheaper than their big brand counter part and just as good.
I have no issues with saving some cash by going with a cheaper aftermarket version. IE full-race vs 6boost exhaust manifolds. I DO have a problem with COPY'S of orginal parts. This manifold is not just a Godspeed version or an Isis version of a front facing plenum. These are direct rip-offs of a design that greddy took the time, money and risk to create.

Honestly I can care less how old you are, who you know, and how long you've been working on cars. The fact of the matter is, is that you have not worked with a knock-off manifold or a greddy manifold. I have, and I have given you both ethical and physical reasons to avoid the knock-off manifold.

Maybe you don't see the value in spending $800 for the greddy manifold now, but once you have it and install I guarantee you will. Or if you just can't bring yourself to spending the money then why not skip the manifold all together. Theres a recent post on running a FMIC with the stock cross-over pipe. Or another option would be to take the factory upper plenum to a local fabricator and have them relocate the TB to the front. This can be done for cheaper than a greddy knock-off and none of the factory hoses or wiring have to be modified.

neonbomb
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Well lets use our brain here.

If the selling price is lower on a product, this means they are able to turn a profit from producing the product at a lower cose. This means the materials they use, and methods they use for producing that product, are being driven by cost limitations, not quality conformities. This will result in a sub-par product.

They have loads of casting imperfections, terrible tolerences, terrible planes.

Go buy one


l0nestar
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I 'stole' a GReddy plenum for $400 used. It was in good condition, I just had it powder coated.

Casting was smooth, all holes / lines bolted right up.

Installation was a breeze.

I've seen the knock-offs before, night and day difference.

If finances are your constraint, remove your stock unit and have a local shop tig a sheet-metal manifold.

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TheKon
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So this afternoon I actually called godspeed. I have all the information I need. See you on the road guys.

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TheKon
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Btw Neonbomb...I don't think you realize that it costs them maybe $10-15 in metal to make a casting. Do you realize how much advertising Greddy does and how little advertising Godspeed does? Guess what pays for that advertising.... you do with the 1000% markup you're paying!

rb25det250sx
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so are they the same... when u get it, keep me informed, if it fits, and what not. just would like to know actually. after all this talk. not saying its BS. just saying.

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TheKon
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I'll keep you posted. They said it's a perfect fit. If not I can send it back.

boosted98gst
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Godspeed, talk about poor slave labor manifolds. When you get the manifold make sure you take some nice close pictures of it.

imotion s14
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What is the point of this thread?

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TheKon
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I wanted to see if anyone actually owned one and has some useful information regarding fitment and longevity, but no one can offer actual real life information or at least anything that satisfies me. So I can assure you I'll take photos of the manifold front to back, during assembly, and mounting. Godspeed told me they guarentee a perfect fit (I imagine is 30 days) and a 1yr warranty on the manifold it self. If it aint gonna break in one year, I imagine it'll be fine. What I guess everyone forgets about casted parts is that they ALL have imperfections, greddy prolly does a little better quality control. Since this will be a winter project I'll have no time constraint, and I don't really care if I need to go through 10 manifolds before it fits right, it'll keep me busy. Thanks for everyone's input!

silviasgp06
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something to consider,

a local shop nationally known shop (name withheld) in this area has testified that some of these knockoffs are in better condition then True Greddy products in recent months. others have also testified that Greddy casts have a lower quality to them. The economy and recent financial issues at Greddy might be cause the "name brand" company to cheap out...

This is only information, do with it what you want.

We all hate knock offs but there is alot more to consider in current times....

BTW: Raw Brokerage Isis manifolds are getting good reviews


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