Cjmartz2k

Were they HKS cam gears? Contrary to popular belief, not everything HKS puts out is even half way decent. I have seen their cam gears kill 2 motors. They only have 3 little bolts holding them in place. Really need to crank them little buggers down.

I don't think even a popped head gasket would show 0 on all cylinders. Maybe it the belt slipped a tooth and trashed the valves into the pistons?

Imagine all the knowledgeable people on here that have put the information out for people to read "not wanting to bother" with the same question being asked over and over and over. Lets see, people with the info's time (who have already invested time putting info out there) vs. your time (newb not willing to search). I wonder which one is more important. Nismoid is being exceptionally kind by giving you those numbers and not just locking this thread. Read the thread. Actually, nevermind, I'll give you an answer. 734hp. That's what they can take. 734hp exactly. Take my word for it and don't search.

Ah, cool. Mine's a HX40 though with twin 50mm gates But I'm still rocking a stock bottom end and it's a 25, so you win this time One thing about that a/r list, I'm not sure how accurate it is, but more specifically, I think it doesn't mean the same thing compared to mitsu turbo's or things like T88's. I think each company makes up their own propritary labeling system, and some of the DSM guys might be basing that scale off of other companies. Also, is for sure not the same when you go from HX35 to HX40 to HX52. I can tell you for a fact my 19cm is not over a 1.00 a/r. My best guess is about a .81-.89 a/r for my 19cm HX40. My HX52 when compared to a T88 34D with a 18cm housing looks almost exactly the same.

Welp, the discusion just went over my head Thanks for the compliment by the way, but I don't think it's warrented. The guys over on the DSM forum have done so much of the leg work already. Just FYI, I ran a 38mm HKS wastegate on a HKS log style bottom mount with the 35/40 (yes, we had to chop the frame a bit) with no boost creep. Actaully the opposite. My boost would fall off a bit on teh top end, and I don't know if it was from the compressor running out of puff or the turbine was experiencing choke. That was by far the loudest wastegate I have ever heard.

Ahh, pretty The DSM guys say that these turbo's don't really come alive until 23-25psi and start making HUGE numbers above 30psi. Granted, that's on their little 2.0L, so you'll be able to make better power at lower boost with your 2.6L. One thing I forgot to say to the OP. Holsets have an anti-surge slot or "map width enhancement groove" as they call it cut into the compressor housing. This will let you up the boost a bit more with out surge which will let you get away with running a bit more compressor flow compared to what the exhaust side should normally handle IIRC. I'd still push the bigger housing, especially if plans for a 35/40 hybrid are in the future, but just more info for ya.

Really? Not too familiar with the HKS T45. What kind of power are you making? That turbo/ex housing just seems a little small for a RB26 to me, but that's not coming from actual experience, just guessing. Kinda like putting a GT30r on a RB26 in my mind. How's the spool? Glad to hear your happy with it. 7 blade or 8 blade compressor wheel?

I'm not too aweful sure on that one, but I would lean more towards the 14cm housing, especially if you are planning on a HX40 compressor wheel down the road. I'm about 99% certain that's what I had on my 35/40 hybrid, and the spool was great. Just a straight HX35 would be even more impressive I'm sure. Bigger exhaust side will make better pump gas numbers, at the expence of a few hundred rpm of course. What kind of driving are you going to be doing with it? Also, remember their are 2 different compressors for the HX35. 8 blade is smaller, 7 blade is bigger/flows more. I've shoot for that one for sure. The 7 blade has a 60lb/min compressor map.

Can you see the nib spinning around inside the dash portion if you have somebody below the car spinning the other end of the cable?

I really don't want to waste my time, but I think I can keep this short and still make my point. What GT35 are you running? Have you ever seen a holset or read anything about them? What about your experience with RB30's? Enlighten us please Unless of course this is just regurgitated internet "knowledge" and you have no real experience. If that's the case, please GTFO. Wow, I want one of those for Christmas!! Was that SaulG AKA Goldfarb? He's who I've gotten almost all of my Holset's through. Great company, good turbos, but they aren't so will to take them apart and measure things for you. They deal in a lot of volume, so the odd import tuner buying a turbo off them for $150 doesn't get them to excited. They will usually tell you the exhuast a/r though. If you are looking at a HX40, the number of blades SHOULD tell you what you need to know. He will measure the inducer on the compressor and the exducer on the turbine side for you though usually.

Are you experiencing a problem you think is related to dirty throttle bodies right now, or are you just getting the urge to clean something? If the later, may a suggest a good coat of wax and some tire shine Seriously though, if there is not currently a problem, I'd leave it be.

O yeah, UK, forgot! Do they have RB30's in OEM applications there, or do you just import them?

URAS--part numbers -----> http://www.dsmtuners.com/forums/turbo-syst...hread-only.html I'm TWIN external 50mm gates to keep the boost in check on mine, but I think it's a manifold design fault. I've heard of some of the DSM guys using the internal gate on their little 2.0L with a custom housing, but I don't think it's an option for us. I think a HX35 on a RB30 would spool SCARY fast. I have 0 experience with RB30's though, so I wouldn't want to guess with no real experience. You lucky aussies and your RB30 blocks

One definite downside to holsets is they do NOT cater to the aftermarket crowd. They makes tons of money mass producing OEM turbo's for big rig diesels and american diesel pick up trucks made to go 200k miles on the factory turbo at a constant 2bar+. I can't blame them. Why would they care? We only get the used scraps and odd batch of brand new turbo's that "fell off the truck" somehow. They are cheap because people find them in the states I mentioned. If you buy them new, they cost the same if not more than a brand new BB garett. Everything is "experimental" except for HX35's and HX40's, and a few HX50/52/55's. I'd bet an HX30 would be the rough equivalent to a HKS 2535 power wise, but I have no clue about what flange and stuff they use. Maybe somebody should be a poineer Vspec--look on american ebay for cheap holsets. A seller in particular named saulg. Wouldn't that be ironic if you got a turbo made in the UK that was shipped to the USA for a truck, and bought it used and had it sent back to the UK for $300-$400 USD when a new one would run you $2000 from the factory located next door?

I don't know about that company. They give some over rated hp figures, and there are some things that just aren't right. That HX40 for example. They say it's a 58mm inducer, but those only come on the older/smaller HX40's with 8 blades. The one they have pictured looks like the 60mm "super 40" like what I have. The 8 blade is a 60lb/min turbo, and the 6/7 blades are 69lb/min turbos. That's almost a 100hp difference. You wouldn't want a 16cm housing anyways, especially on a 3.0L. WAY to small. Also, those prices seem really high. Also, Holsets don't have extended tip technology. Ya know what!?! I just noticed, I think it's a china copy! I've heard about some china copies being made, but have yet to see one. I'm going to post that up on the DSM forums and see what they say. I would steer well clear of tha company. As for the HX40 in general, I think it would be a bit small for you power goals. It would probably JUST make the kind of power you want, with great spool. Think of it as a bit bigger than a GT35r with a little better spool. HX52 is more GT40r or GT42r with AMAZING spool for that sized turbo. Check out american ebay for some better deals on holsets. You might pay a lot more for shipping, but compared to the prices of those turbos you found, it'll still be cheaper. In my mind, the main reason to go with one is the price. If you going to pay around $1k USD for one, I'd look at a Borg Warner.

They are fibbing with those numbers on the HX35. AWD 2.0L DSM's (Eclipse's, Talon's, etc) in the states have pushed that particular turbo into the low 11 second range on many different vehicles and it will probably out spool a GT30r, but it's not going to make more power than a GT35r. Well maybe a really small a/r'd GT35r, but even that's pushing it. That's way to small for you, and for you power goals, I think you'd be close to maxing out a HX40. I think I'm somewhere around low 600's at the motor with mine at 1.7 bar. I'm thinking of getting water/meth injection and trying to run 2 bar. The DSM guys run crazy high boost on race gas and get ridiculous numbers with the HX40's. One guy got 652rwhp with a HX40, but that was at like 40psi on race gas on a dynojet which tend to read pretty high. You wouldn't have to run as high of boost with that big 3.0L to get higher numbers, but I still think you'd really be pushing a HX40 to get those kind of numbers. If I were you, I'd really look into the HX52. It's what I'm about to put on my car. Compressor is something like 98mm exducer and 67mm inducer IIRC. It spool ridiculously fast for that big of a turbo on my friends RB25. It'll make mid 700 hp at the motor with out breaking a sweat, and probably close to 900 if you really cranked up the boost.

http://forums.nicoclub.com/zerothread/4088...eather-woo-hooo

I think some people on the NICO forums have tried them before. Might ask over there.

Hmm, that's about what I was guessing. It's a bit off from what Guilt-Toy was getting though. How does that jive with some of the dyno's you guys have? Also, what brand are you all using? I know dynojet's read REALLY high even for "american" hp, and mustang dyno's are supposed to read low. Also, does the scale curve as the hp gets higher? Example (just making up numbers); if 300hp = 110mph'ish, and 400hp = 120mph'ish, does the amount of hp to get to 130'ish increase a lot more? There has to be a point where you get diminishing returns I would think. Keep posting times/mph/hp/weight guys!

Just to get my numbers out from the jumble of the first post. R32 GTSt with the added weight of me (210lb), passenger (180lb), subwoofers in the trunk, and how ever much more an RB25 tranny weighs. How much do standard R32 GTSt's weigh? 11.8@124 (my slowest mph of the night) and a best mph of 127mph. No dyno though, but I've been told low to mid 500 rwhp.

I know you can usually tell from avatars or screen names, but just to get people in the habit, make sure you post body type and/or weight if known. I don't think we need wheel size and gears and stuff. To much clutter for ballpark figures. Keep it coming guys, good stuff. Maybe what type of dyno used also?

I would completly agree with that. Example, my times/mph are on drift type Cusco suspension, a factory viscous, 275/40R17 drag radials, and NOT on a prepped track (or any "track" for that matter ). I think with a better drag set up (and maybe a driver mod), I would not only have much better E.T.'s, but also a higher mph. I spin completly through 1st and 2nd gears. Glad you like the idea of the thread too I was worried it would be recieved as a "how much hp do I have?" post. Also, R33god if you'll notice I did specify in the post weight (via chassis type) was a must for info.

So some of you guys know I (and some others) love to get into big debates over american hp vs. aussie hp. I do think they can be different (but I will not accept one figure is "better" or more "accurate" than the other.) Many figures that are posted on here from around the world are shot down because they don't match the hp to mph figures you guys have. I have combed the dyno results threads and see no mph stats for a most of the posts. I was wondering if some of the experts could give some hp to mph ballpark figures for different body styles (or weights really). Examples........ R32 GTSt's are around 3000lb? 100mph-110mph = XXXrwhp'ish 110mph-120mph = XXXrwhp'ish 120mph-130mph = XXXrwhp'ish R33 GTSt's are around 3300lb? 100mph-110mph = XXXrwhp'ish 110mph-120mph = XXXrwhp'ish 120mph-130mph = XXXrwhp'ish R32 GTR's are around 3300lb? 100mph-110mph = XXXrwhp'ish 110mph-120mph = XXXrwhp'ish 120mph-130mph = XXXrwhp'ish Also, how would AWD effect that equation? I think a R32 GTR weighs about the same as a R33 GTSt, correct? Would the same mph to hp figure be true? Obviously the E.T.'s are going to vary a lot with all cars depending on suspension, tires, driver, track, etc. For example, my best mph (with a Gtec) has been 127mph in a R32 GTSt. What kind of hp would you guess I'm making (o jeez, I just asked that question. Sorry ) Again, I'm just looking for broad ballpark estimates, not figures I could hold anybody too.

I would just like to throw out there that there are a lot of "problems" in the automotive world that MUST be fixed that like to pop up right after somebody starts making a product to "fix" said problem. It seems like people make a product and invent the "problem" to sell their wears.

To laggy IMHO. RB20 doesn't spool dtuff real well. What kind of stuff do you want to do with the car? If you went to the trouble to go forged internals on a RB20, one might assume you are chasing power levels that would involve turbo's that are going to be laggy anyways. Did you already buy it? Is it bolt on, or are you planning on a manifold and external gate or something. If your going to the trouble of a top mount and external wastegate anyways on a budget, I'm a big fan of Holset turbo's. Search on this board and you'll find some info. HX35 sounds like it would be right up your alley. Also, can you please remove the HEEELP! from the title since you, in fact, don't actually need urgent help of any kind and you are just asking a question. I'm so sick of clicking on stuff like that expecting so see somebody needing urgent help with something like a blown motor or "I can't get this back together!" and seeing a question about which turbo or what blow off valve.