RB26powered74zcar Posted September 18, 2008 Author Share Posted September 18, 2008 I just use 94 oct premium pump. The actuators on my turbos are adjustable, but I can't seem to get above 18 lbs of boost, and that's using a HKS EVC easy. I guess I need to try and tighten up on the threaded actuator arms, maybe I can get more boost that way. I have a HKS 60mm racing w/g to use with that new manifold, so I know I won't have boost control issues with what ever new turbo I end up choosing. I think 18 to 22 lbs would be the norm for me. That turbo looks very promising and would spool a hell of a lot quicker then your current setup. Do you run race gas? How much boost are you looking to run? Justin Quote Link to comment Share on other sites More sharing options...
stony Posted September 18, 2008 Share Posted September 18, 2008 Quote Link to comment Share on other sites More sharing options...
stony Posted September 18, 2008 Share Posted September 18, 2008 Dude you should be getting more then 18PSI. Check to make sure you are hooked up right on your EVC. those have different settings when using external vs internal wastegate. then check your WG actuators. they may not be up to the task. may need to upgrade to stronger actuators. not sure going to a big single is your solution. but it would make you plumbing allot easier!!! Quote Link to comment Share on other sites More sharing options...
Evan Purple240zt Posted September 18, 2008 Share Posted September 18, 2008 Joel, I was having that problem at DNI... I couldn't get boost where it needed to be. Turns out my W/G spring was too weak and my boost controller could not hold it closed. I suspect you may have a similar problem. Evan Quote Link to comment Share on other sites More sharing options...
Booztd 3 Posted September 18, 2008 Share Posted September 18, 2008 What you will want to do is find out what your 'base' boost is.......do this by just connecting the wastegate lines, to a vacuum source. This is going to allow your wastegates to open at their min-obtainable boost. A good rule of thumb is you can typically squeek 2x the amount of base boost pressure with a boost controller. If your 'base' boost is only 9psi on the wastegates then you'll want to look into tightening them...or upgrading Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted September 20, 2008 Author Share Posted September 20, 2008 Well... I can look at this two different ways, I got a great manifold for the price, or I got stiffed. This manifold was advertised as a T4 flanged manifold. I did not pay enough attention to the pic showing the flange, so I gobbled up the deal. Its a T3 flange. I guess I could sell it, or I can get a T3 based turbo that would give me all I want out of the motor, which is not alot really, compared to what most build their RB26 to HP wise. I'm back to trying to figure out a good streetable, low/mid boost, quick spooling, now T3 turbo... What do you think... sell it, or keep it? Quote Link to comment Share on other sites More sharing options...
240zwannabe Posted September 20, 2008 Share Posted September 20, 2008 GT42!!!1 a guy i know has it on his car and loves it. Quote Link to comment Share on other sites More sharing options...
510six Posted September 20, 2008 Share Posted September 20, 2008 I have a T04S T67 sitting on a shelf in the garage with less than 300 street miles on it. The turbo was built by Limit Motorsports and spooled on my L30 stroker by 3500 rpm. T67 .70 AR housing with a .82 T3 exhaust with a stage 5 wheel, the turbo is capable of making over 600 rwh. Quote Link to comment Share on other sites More sharing options...
Z24O Posted September 21, 2008 Share Posted September 21, 2008 Well... I can look at this two different ways, I got a great manifold for the price, or I got stiffed. This manifold was advertised as a T4 flanged manifold. I did not pay enough attention to the pic showing the flange, so I gobbled up the deal. Its a T3 flange. I guess I could sell it, or I can get a T3 based turbo that would give me all I want out of the motor, which is not alot really, compared to what most build their RB26 to HP wise. I'm back to trying to figure out a good streetable, low/mid boost, quick spooling, now T3 turbo... What do you think... sell it, or keep it? Garret GT35r,0.7 a/r comp,0.82 a/r turbine housing most popular choice over here for big hp street RB's Quote Link to comment Share on other sites More sharing options...
Z24O Posted September 21, 2008 Share Posted September 21, 2008 Well... I can look at this two different ways, I got a great manifold for the price, or I got stiffed. This manifold was advertised as a T4 flanged manifold. I did not pay enough attention to the pic showing the flange, so I gobbled up the deal. Its a T3 flange. I guess I could sell it, or I can get a T3 based turbo that would give me all I want out of the motor, which is not alot really, compared to what most build their RB26 to HP wise. I'm back to trying to figure out a good streetable, low/mid boost, quick spooling, now T3 turbo... What do you think... sell it, or keep it? Garret GT35r,0.7 a/r comp,0.82 a/r turbine housing most popular choice over here for big hp street RB's however i would still make sure any turbo is going to clear the hood before going any further,it looks to mount too high to me Quote Link to comment Share on other sites More sharing options...
Booztd 3 Posted September 21, 2008 Share Posted September 21, 2008 J- Called and left you a VM. Hit me back Thanks Quote Link to comment Share on other sites More sharing options...
Forrest Posted September 21, 2008 Share Posted September 21, 2008 What do you think... sell it, or keep it? If you're going with a T3, the GT35R seems like a pretty good choice, but if a t4 is what you want, why not get someone to cut off the flange and replace it with a T4 flange? That shouldn't be out of the question, right? Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted September 21, 2008 Author Share Posted September 21, 2008 If you're going with a T3, the GT35R seems like a pretty good choice, but if a t4 is what you want, why not get someone to cut off the flange and replace it with a T4 flange? That shouldn't be out of the question, right? I thought the same thing, but received this message back from the actual builder of these manifolds... " Joel, Due to the order of operations, swapping the turbo flange is not possible with this manifold. There is no way to successfully cut the T3 flange off, nor is there adequate clearance to weld the new T4 flange on. I would be willing to sell you a new manifold built to your spec for $1400.00 to help out(a large discount), but it looks like you'll either have to go with a T3 turbo, or sell the manifold and order up a T4 unit. Wish I could be of more help! Thank you, Cody Loveland, President LoveFab, INC. www.lovefab.com 231 499 3912 " Quote Link to comment Share on other sites More sharing options...
wigenOut-S30 Posted September 21, 2008 Share Posted September 21, 2008 Joel, Im pretty sure you will be able to make the power you are after with a 35R or see if you can get a T3 flanged 37R. My next door neighbor made 600wheel HP with a GT35R in his 2.0 ltr S2000 @ 30psi of boost. Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted September 21, 2008 Author Share Posted September 21, 2008 Joel, Im pretty sure you will be able to make the power you are after with a 35R or see if you can get a T3 flanged 37R. My next door neighbor made 600wheel HP with a GT35R in his 2.0 ltr S2000 @ 30psi of boost. Thanks Gabe. I may end up with a better power band and still have more hp than I need with a T3... Quote Link to comment Share on other sites More sharing options...
stony Posted September 21, 2008 Share Posted September 21, 2008 I may have missed it but why are you getting away from your original setup again? Is it the boost problem? Quote Link to comment Share on other sites More sharing options...
v8dats Posted September 21, 2008 Share Posted September 21, 2008 keep the twins! they look sweet!! Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted September 21, 2008 Author Share Posted September 21, 2008 I may have missed it but why are you getting away from your original setup again? Is it the boost problem? Because I'm retarded..... I have a bad habit of buying stuff I don't really need. I impulse buy when I see a good deal come my way. Do you remember just a few weeks ago what I bought....? hmm uhh lets see.... (hint) another f-ing single manifold!! As if I need two single manifolds... What started me on this trip, was I'd like to make the engine compartment less packed, and a bit cooler. Quote Link to comment Share on other sites More sharing options...
Booztd 3 Posted September 22, 2008 Share Posted September 22, 2008 Joel Never got any pics of the manifold......can you re-send them? Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted September 22, 2008 Author Share Posted September 22, 2008 Joel Never got any pics of the manifold......can you re-send them? They are in a thread I started on rbZ32.com http://www.rbz32.com/viewtopic.php?f=5&t=569 Quote Link to comment Share on other sites More sharing options...
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