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OBX has new 4g64 manifold (looks similar to ERL Placement)

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Kelvin, I wouldn't get my hopes up too high on this one, I doubt any retort will be backed with proof if there's one tocome at all.The MOST i've seen on a water injection gain over pumpgas is about 50hp and about 50tq, and usually it's a torque gain of 40-50hp and only about 10-20hp netted. I studied the hell out of water injection wheni first putmine on and google many many dyno results of bakc to back tests and about the best i found was a .pdf on the AMS EVO (i'll see if i can dig it up)

and here is is
http://www.amsperformance.com/pdfs/maxpower.pdf

these are the largest gains i've seen from anything of the 2.0 liter realm on up to grand nationals when tuning on w/a injection over straight pump gas.
I do know there is definitely benefits just trying to give a positive response to those shocking results posted.
Nice post Glenn
 
Can someone provide me with a ebay link for the manifold. i am trying to buy one asap
 
Kelvin, I wouldn't get my hopes up too high on this one, I doubt any retort will be backed with proof if there's one tocome at all.The MOST i've seen on a water injection gain over pumpgas is about 50hp and about 50tq, and usually it's a torque gain of 40-50hp and only about 10-20hp netted. I studied the hell out of water injection wheni first putmine on and google many many dyno results of bakc to back tests and about the best i found was a .pdf on the AMS EVO (i'll see if i can dig it up)

and here is is
http://www.amsperformance.com/pdfs/maxpower.pdf

these are the largest gains i've seen from anything of the 2.0 liter realm on up to grand nationals when tuning on w/a injection over straight pump gas.

I am positive there is more than 50whp to gain when switching from straight pump to pump+meth. Of course this is the case here in California where all we have is crappy 91 to begin with. If your interested i can send you some dyno graphs of a before and after on a 50trim 2g. Just shoot me a PM.

Gus
 
I am positive there is more than 50whp to gain when switching from straight pump to pump+meth. Of course this is the case here in California where all we have is crappy 91 to begin with. If your interested i can send you some dyno graphs of a before and after on a 50trim 2g. Just shoot me a PM.

Gus

hell, post em up here in the tuning section or something,i'm sure more than just people than jsut myself would be interested in checking them out. i"m just going off what i've read and seen posted elsewhere on the web, i wasn't saying it was a definitive fact. But, i was saying the claims of 150HP above were 99% bogus and ricer-inflated gains that weren't dyno proven :D
 
hell, post em up here in the tuning section or something,i'm sure more than just people than jsut myself would be interested in checking them out. i"m just going off what i've read and seen posted elsewhere on the web, i wasn't saying it was a definitive fact. But, i was saying the claims of 150HP above were 99% bogus and ricer-inflated gains that weren't dyno proven :D

Someone PM'd me asking for these so i'll get some and post em up in the tuning section. I'll also be retuning my personal 2g on meth compared to straight pump so i can post those up also.
 
Someone PM'd me asking for these so i'll get some and post em up in the tuning section. I'll also be retuning my personal 2g on meth compared to straight pump so i can post those up also.

That would be very cool of you.. A lot of us tuners would be glad to see the ifnormation
 
Please post up the link to reference to when ya have this done. Thanks. Really looking into this now. No E85 where I live so need SOMETHING so I can crank my boost up higher.
 
While 150 sounds damn fishy. I picked up a lot of power by going to a meth injection system. More than 50. But it's not just slap it on and leave the tune alone. Meth allows you add boost and timing that you couldn't on pump alone. It's about the only way to get these holsets to run in there efficiency range without race gas or E85.
 
Nothing is fishy about gaining 150hp if the setup is done correctly. Its no different than running race gas. What is fishy... and total BS, is the poster in question stated he made an additional 150hp without adding any boost.

I'd see knock at anything higher than 17psi on 91 octane in my 3.8 turbo setup. I replaced over 30% of my WOT fuel with straight methanol and was able to run 30psi and pretty healthy timing.(PT68 turbo) I did the same setup with similar results on my NA-T 2jz setup. Just don't run out of meth or things get ugly quick.

Any mods wanna move this topic? Don't see how it relates to a manifold. :confused:
 
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i just got one of these manifolds im gonna try to run it with the stock hx40 hot side hopfuly it will clear the block if not will a stock hx35 hot side clear the block
 
Read the whole post... I mounted the holset housing and took pics. It clears fine. :thumb:
 
thats good im only gonna run the 18cm housing for a little while i know its gonna be a lag monster
 
Details on the setup, HP output and boost levels please! I'm finding this one VERY,very hard to believe, but i'll give you the benfit of the doubt if you can toss us some dyno sheets up showing what the car is making currently.

Where are you getting the methanol at? I only had one source for it in town and they shut down this past summer so now i have to order it or drive to the next major city over 45minutes from here

Hey man I really did not want to clutter this thread, but since there is people posting in here saying such numbers unreachable I figured that maybe I can post my datalogs. Also keep in mind you highlighted my post but you neglected to highlight the fact where I said "according to DSMlink" I never hinted that these numbers were backed up by a dyno or anything like that.

Anywho, I looked and looked for the last straight pump gas tune/log that I had but I was unable to find the last one that I had saved. I did however find a sort of working version tune if you will, that I attached. Things to notice in the pump gas datalog I posted up the car was knocking a little bit so I kept pulling timing to get rid of as much knock as I could on the final tune my timing was around 12-13*. The 70-90 times on the pump gas datalog I posted were around a 1.950, I know on the last tune I had in the car that time was around 2.1XXish and DSMlink HP estimations were between 360-390 due to me having to take out A LOT of timing out of the car for it to not knock to death at 30psi on 93 octane.

The second datalog is the most recent one I have of the current tune on the car with the methanol injection (150psi pump, 100% meth, 10GPH nozzle) timing between 21-23* DSMlink HP estimations are around ~550 and the 70-90 times are around 1.5xx. The boost is still at 30Psi, another interesting thing to note is that the airflow numbers are different, I am not sure how much this can take into account as far as power, but I did switch to a different 2G MAF sensor at some point between the working version datalog and the final methanol datalog.

As far as HP gains to me it is not that hard to believe, I am using a small intercooler (buschar old ass street core) so the methanol is both significantly cooling the intake charge and boosting octane allowing me to run almost 10+ degrees more of ignition timing over the pump gas tune.


Also as to where I get meth, I usually buy VP M1 (non lubricated) or some Sunoco Methanol (non lubricated) Any drag race track should have either one, last time I recall paying around 5 dollars per gallon.

I hope some of the info I posted you guys find helpful in someway, Hopefully it cleared somethings up.



Either way any more updates on the manifolds guys? My car has been broken due to 1st gear sheering and I have been waiting for TRE to shotpeen me 1st and 2nd gears a long with an input shaft and weld my center diff before I can put my car back together and pick up one of these manifolds so I can go to the HX40.

P.S. Sorry it took me so long to respond, I just finally started working again and this waking up at 5AM business has gotten me really out of whack, feel like I have no time for forums :(
 

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wont that choke the turbo?
Common sense would tell me half an 18cm housing should be a 9cm housing. E316G uses a 7cm housing. So you should be in the ball park with a 9cm. Try it. Not like it costs much or couldn't be removed easily. V8 guys have been doing it with huge housings for a long time. COuld always uncover a small portion of the other side as well... :aha:
 
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Took the car to the drag strip and leaned on it pretty hard. Out of fuel around 22psi and 7300 rpm. Went 12.20 and trapped 119mph. Looking the car over that night I noticed the WG tube has cracked again. Same spot just to the left of the repair weld. I'll try welding and bracing it more evenly. Probably a a losing battle. Also installed one of these on a friends car. I suggested he brace it, but he didn't. Manifold was on the car for less than a week and it cracked in the same spot at the base of the WG tube.

Will try to get pics this weekend. No reason a 16ga 321SS manifold should crack like this. I'm thinking it's 18ga, i'll try to measure it. :cry:
 
Took the car to the drag strip and leaned on it pretty hard. Out of fuel around 22psi and 7300 rpm. Went 12.20 and trapped 119mph. Looking the car over that night I noticed the WG tube has cracked again. Same spot just to the left of the repair weld. I'll try welding and bracing it more evenly. Probably a a losing battle. Also installed one of these on a friends car. I suggested he brace it, but he didn't. Manifold was on the car for less than a week and it cracked in the same spot at the base of the WG tube.

Will try to get pics this weekend. No reason a 16ga 321SS manifold should crack like this. I'm thinking it's 18ga, i'll try to measure it. :cry:

Damn man :( Good times for low boost though! These turbos really wake up over 25 especially in a t3 housing.

That's a shame she keep cracking on you :( But instead of flaming you like other idiots that are posting in here, I commend you for being honest and not just disappearing and not posting about the manifold because its cracked. I really would have felt that bracing the WG pipe would have fixed the cracking issue at that part.

Either way keep us updated on your approaches to fixing it and how its holding up, or if you end up ditching the mani and getting something else.
 
I just bought this manifold and I am allready having my doubts. I have a question does this manifold line up with the erl as far as the downpipe /02 housing. I asking this because I am about to have mine made up. Or should I have my hole manifold rewelded
 
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