I honestly dont wont to read through all the threads so Im gonna post this here.....Getting ready to get my setup back together.....
Hx40 - 7 blade billet wheel
Oil line fed from oil filter housing
No balance shafts
7 bolt motor - Relief hole NOT ported
What do you recommend me doing as far as a oil supply....I already have the line to use from the ofh, but I want to know If I need a restricter or not...Or should I go ahead and pull the ofh and port the relief hole....I dont really want to do that though....
Please, help is appreciated...should have some pics up soon...
-Kevin-
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I honestly dont wont to read through all the threads so Im gonna post this here.....Getting ready to get my setup back together.....
Hx40 - 7 blade billet wheel
Oil line fed from oil filter housing
No balance shafts
7 bolt motor - Relief hole NOT ported
What do you recommend me doing as far as a oil supply....I already have the line to use from the ofh, but I want to know If I need a restricter or not...Or should I go ahead and pull the ofh and port the relief hole....I dont really want to do that though....
Please, help is appreciated...should have some pics up soon...
-Kevin-
It may be kind of one or the other. You will most likely need the restrictor with the relief hole unported. You may still need a restrictor with it ported also, and you might not. Do you have means to hook up a gauge to verify what pressure you're getting? This will allow you to "tune" your op for your setup. Its kind of hard to say
It may be kind of one or the other. You will most likely need the restrictor with the relief hole unported. You may still need a restrictor with it ported also, and you might not. Do you have means to hook up a gauge to verify what pressure you're getting? This will allow you to "tune" your op for your setup. Its kind of hard to say
Yes I have a mechanical oil pressure gauge that will be off of the ofh also.....Its really not a problem if the best thing is to port the relief hole, its just one more thing on the list.....
The thing is, I would rather not start the car just to see what the pressure is and then have to pull the ofh off and port the hole and reinstall it.....I wanna just do it all now and be done with it.....
So I tried to tune tonight with my holset hx35, at 22 psi I ran out of injector hitting 103% duty cycle
I could of sworn I have seen people making 25-27psi on pump with 780s and 720s. Goes real lean once I hit 5500rpm and above. No knock but maxed out around 22-23psi. And the thing creeps up top with my BEP housing to about 22psi. I am sad, posting the logs on LINK forums to see if I am doing something wrong, I didn't expect the duty cyle to hit that high at 22psi.
So I tried to tune tonight with my holset hx35, at 22 psi I ran out of injector hitting 103% duty cycle
I could of sworn I have seen people making 25-27psi on pump with 780s and 720s. Goes real lean once I hit 5500rpm and above. No knock but maxed out around 22-23psi. And the thing creeps up top with my BEP housing to about 22psi. I am sad, posting the logs on LINK forums to see if I am doing something wrong, I didn't expect the duty cyle to hit that high at 22psi.
I honestly dont wont to read through all the threads so Im gonna post this here.....Getting ready to get my setup back together.....
Hx40 - 7 blade billet wheel
Oil line fed from oil filter housing
No balance shafts
7 bolt motor - Relief hole NOT ported
What do you recommend me doing as far as a oil supply....I already have the line to use from the ofh, but I want to know If I need a restricter or not...Or should I go ahead and pull the ofh and port the relief hole....I dont really want to do that though....
Please, help is appreciated...should have some pics up soon...
Log should be up soon, my buddy has the log on his computer, and he will throw it up when he wakes up.
The spool was fixed and I see 20psi+ by 3900. The wastegate arm fit on there too loose and needed to be brought back a couple turns. Spool isn't the issue
Well I don't know the exact point where it hits full boost, starts building boost at 3k and by 3500 the needle just slams past 20 so I don't think it is too bad. I am going to have to do a boost leak test and double check my t-bolt clamps and stuff.
I just was like when the 780s maxed out. I am going to giving him a wake up call so he can get that log up.
Sounds like he's not using a MBC, just the wastegate arm adjustment to raise boost. This will lower spool speeds slightly. A ball and spring MBC makes the spool a bit faster.
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Matt
dd '90 GST, Holset H1C
This may be a stupid question, deserving a "search" reply...but I couldn't find anything.
Has anyone found a reputable place that rebuilds these turbos relatively cheaply? I have a 6-blade HX40 that blew on the highway last night during a pull, now it makes no boost and smokes bad.
To reply to myself, for the time being I bought a replacement.
HX40 (I *think* 6blade) billet wheel for $200 shipped.
I have a boost controller, worked just fine on my ported 14b at 20psi. But the controller is backed out all the way now because we ran out of injector, so we tried lowering the boost as much as possible.its at like 17psi now but after 5k starts to creep to 23ish psi. So it is spooling slightly slow but it builds just fine I think. I won't know until I do a boost leak test.
Something I was thinking about while in class, if I had a boost leak big enough to mess with my duty cycle I should run rich right? And I am leaning towards a fpr because it goes lean up top, and the injectors are trying to keep up so they are just giving what they got. If it was over run then the duty cycle would be very low right? I am just brain storming here.
I think you might be running out of fuel pump. Are you still running the stock fuel filter? Might want to replace it if it's not been replaced yet. Also might want to make sure that your FPR isn't leaking internally.
FYI I was running 32-35 PSI on a completely stock long block with the HX35 and I would run to 7500 RPMs. With 1000cc injectors on pump I would see like 65-69 IDC. When I changed over to E85 I think I was seeing like 85% IDC. That was about 400 HP at the wheels. I've just upgraded to 1650cc injectors so I shouldn't have to worry about injector for some time.
That is why I'm thinking you have a fuel supply problem.
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Jeremiah
92 Talon TSi (HX52 install in works)
However, the compressor outlet comes awkwardly close to the front motor mount, and I can already foresee clearance issues with the FP 4" Intake
hey man I'm running the FP 4inch intake as well with a 2G maf and a cone style filter (the big 4.5inch cone filter not the honey combs style filter). Anyways I have pop ups as well, and to make the 4 inch intake fit u really gotta play around with the lengths of the couplers, I had to cut both couplers so the intake would sit right up against the inlet lip of the turbo and I had to make it so the maf was in a similar position with the intake tube, Btw to make everything fit you have to trim down the lip off the intake tube where the maf bolts to it to get another inch or so of clearence after that it fits like a glove! good luck
I think you might be running out of fuel pump. Are you still running the stock fuel filter? Might want to replace it if it's not been replaced yet. Also might want to make sure that your FPR isn't leaking internally.
FYI I was running 32-35 PSI on a completely stock long block with the HX35 and I would run to 7500 RPMs. With 1000cc injectors on pump I would see like 65-69 IDC. When I changed over to E85 I think I was seeing like 85% IDC. That was about 400 HP at the wheels. I've just upgraded to 1650cc injectors so I shouldn't have to worry about injector for some time.
That is why I'm thinking you have a fuel supply problem.
I too was thinking the volts to the pump maybe, since it's a non rewired 255. The fuel filter is only 6 months old and always had pump in it. I figure I could get 25ish with 780s and be around 80-85 injector duty. It flowed 44lbs at 22psi and there were zero dips or spikes so I can't imagine a huge boost leak causing this. Wensday on my day off we are going to check things over. Your 1000cc were 22 percent bigger than my 780s so at 30psi I should be mid to low 90s for duty cycle.
I am only shooting for 24psi too, though when it did hit 30psi on accident I had a depends moment :P How does the car like upper 20ish psi on pump? I have e85 here but the location of the pumps around town are way out fo my way.
hey man I'm running the FP 4inch intake as well with a 2G maf and a cone style filter (the big 4.5inch cone filter not the honey combs style filter). Anyways I have pop ups as well, and to make the 4 inch intake fit u really gotta play around with the lengths of the couplers, I had to cut both couplers so the intake would sit right up against the inlet lip of the turbo and I had to make it so the maf was in a similar position with the intake tube, Btw to make everything fit you have to trim down the lip off the intake tube where the maf bolts to it to get another inch or so of clearence after that it fits like a glove! good luck
Thanks for the advice! I already assumed there would be clearance issues in length aspect, but I meant there looks like the compressor inlet runs super close to the lower rad pipe ad whatnot. Fitting a 4" silicone coupler and FP intake will be tough, but so will a 2.5" LICP without hitting the motor mount.
Ugh, is there anyway I can tell by the Compressor cover alone (or general size) whether I have an HX40 vs. an HX35? I've been looking at pictures lately of other 8 blade HX35's and 8 Blade HX40's and they all look very similar to mine
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Josh
Holset Hx40 powered in '09
Ugh, is there anyway I can tell by the Compressor cover alone (or general size) whether I have an HX40 vs. an HX35? I've been looking at pictures lately of other 8 blade HX35's and 8 Blade HX40's and they all look very similar to mine
I too, have often wondered the easy to spot visual differences between an hx40 and hx35.
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Ronnie V.
96 TSi HX40 400hp/354tq - 91 GSX e316g
The FP 4" intake clears with no issues on an HX40, FP race mani, and 1" spacer. You can check mine out in the results thread.
They're discussing 1g's... setup a little different
The easiest way to figure out what kind of turbo you have is by the serial numbers and/or measuring the wheels. I'm thinking its a really small hx40 variant or a hx35...
Figured Id gone and get my hands on one of these Holset turbos. I called the guy at that Goldfarb & Associates site about them.
(The guy said he inspects to make sure they visually look ok ) but they dont guarantee them working.
He said for it guaranteed they could rebuild it for me, but the total cost with the rebuilding it is in the 500s.
So anyways I was thinking of just picking up the hx40 "core" off of that site and hoping it is in good enough working condition for what I am trying to do. I think Im going to get a 6blade if they have one, but if not then Id settle with the 8blade. I plan on installing it to the BEP housing ( probably Turbotrader.com kit) when its time to run it.
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((Jay))
E316G - 6bolt/4bolt
2800lbs w/ driver
Last edited by Black_Bullet; 03-24-2009 at 08:55 PM.
Reason: Was pm'ed the answer to my question by a helpful member.
They're discussing 2g's... setup a little different
The easiest way to figure out what kind of turbo you have is by the serial numbers and/or measuring the wheels. I'm thinking its a really small hx40 variant or a hx35...
trying to find the best compressor for my setup, which one of these compressors would flow the most Lbs/min. If the 7-blade hx35 is 56mm at the inducer and the hx40 6-blade is 56mm at the inducer, which one flows more?
these are the turbos i have and im debating over. which wheel flows the most lbs/m?
when the 780s maxed out. I am going to giving him a wake up call so he can get that log up.
