How to build a responsive 1000hp Nissan RB30 street engine | fullBOOST
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- Опубліковано 8 тра 2019
- With decades of experience modifying Nissan engines, Johnsons Performance Centre is a well known Australian outfit in aftermarket turbocharging. Not only do they build custom turbochargers, but they are also equipped with an engine dyno facility. We sat in on one of their tuning sessions recently where they were finishing up one of their Nissan RB30 street engine packages. The goal here is to achieve a responsive 1000hp.
Now JPC has long been known not to use off the shelf turbochargers, instead creating their own custom units. Generally in street applications the bigger the turbocharger you use the less driveable it becomes. In this instance to counteract this JPC has essentially mated a Garrett GT45 core to a small T3 flange .63 exhaust housing...yes I said .63 T3. Obviously, controlling turbo back pressure is key to utilising horsepower potential. The upside is excellent transient response and fantastic top end. For an engine that will spin close to 9000rpm, this will see 20psi well under 4000rpm. The downside? Because of the very small exhaust housing, this specific application will struggle to be efficient beyond 40psi, but that is more than enough to meet the customer’s goal of a responsive 1000hp street engine. All testing is E85 fuel, with engine tuning is carried out via a Link ECU.
Engine wise this Nissan RB30 is still 3L capacity using a forged piston and rod mated to the stock crank. Like many high powered JPC Nissan engines this one features strengthening bridges. Bridges are essentially a less expensive option to improve bottom end rigidity. Up top the RB has JPC’s Gold cylinder head package. This includes custom porting, roller rockers, studs, head girdle and a solid camshaft. One the inlet side a JPC cast manifold is employed.
Nissan RB30 3L SOHC
Forged pistons & rods, stock crank
JPC bridges & sump, Ross balancer
JPC Golf cylinder head package
Ported cylinder, roller rockers, valve springs
Head studs, solid camshaft, adjustable cam wheel
Custom Garrett GT45/T3 0.63 A/R turbo by JPC
Custom exhaust manifold, Turbosmart wastegate
JPC cast inlet manifold, Plazmaman throttle body
Link EFI, E85 fuel
Built & tuned by JPC
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#Nissan #RB30 #fullBOOST #JPC - Авто та транспорт
Step 1: have money
Me: out.
I had an old (talking 70) bloke build the RB30 SOHC in my R31 Silhouette. Using a similar setup as this, but about 20 years ago- turbo was good for 30 psi, and that was its limit, backed by a ford C6 manualised box.
Drove just like a big capacity straight 6, no lag, just a linear power curve. Made 800hp, all i needed.
I love FullBoost for such great content. It's easy to be surprised by the size of the turbine housing when it is focused on. The fact that it is single cam with such great power and response is a subject that is easily missed by builders and tuners who have not had the pleasure of overcoming such a power struggle.
That turbo set up is great. Thinking ourside the box. Well done fellas!
Fantastic video, really impressive stuff especially the turbo specs. Love that it retains the single cam head too 👍🏻
Insane that the setup
Works so well. I bet that .63 housing has a massive exhaust wheel with a big trim numbers.
Really cool short video! Follow up video idea - chat to JPC about why this combination and how they came to it. They might even have their built RB30 but with a 'standard' Garrett so you could show how much better this style combination is for the street vs outright top end horsepower.
Very impressive on such a small exhaust housing!
The last turbo flutter is insane
That’s something I’ve never seen before, awesome!
Great insight there Luke 👍 nice to know what makes them tick
That is some excellent engineering, well done.
Holy shit was my first reaction when I saw that first dyno power run. Great stuff.
a very tuff engine the RB30. i have an A8et in my LC gtr. its only got light work with a 6boost manifold and a gt3582.. but this thing you got here... wow..
I want to make it onto bench talk what a load of ship this motor can't do that turbos way too small these guys have no idea what they're talking about but really what a top job those guys know what to do please put me on bench talk
Saxophone turbo makes the best jazz playing sound metallic
Wow that's incredible! That thing would come on boost sooo fast with the rear housing
planning a very similar build with a stock s2 block, want to run 7psi, ... aiming for 350-400rwhp responsive street build,.. not have to stress the turbo, an utilize the mass of air flow to help with EGT an longevity of the build. This build inspires that maybe ill reach my targets a little easier than expected haha
gen 1 gtx3582r t04z front comp with garrett 0.63 AR turbine housing.. 555cc nismo injectors, 800 FPR, walbro 460, freddy plenum, through a 76mm FMIC, 76mm cooler plumbing, to 84mm throttle body... 6boost exhaust mani with WG50 lite 7psi, 3" mild steel exhaust heat wrapped from dump back and also wrapping the manifold... stock headgasket and ARP headstuds with rear oil modifications... not sure if this is safe but hoping targets im aiming for are realistic
@@brendanj1124 Multihole injectors (eg R35 GTR) and high power coils (again, R35 GTR) make a surprising difference to the EGTs and AFRs achievable. Look into it!
Thought the Barra's were bada$$ strong... this is a total beast
Just awesome !!!
Good tuning required there.... FMD!
the sound of the blowoff valve is..... interesting
I know this is an old vid hoping I get a reply. What lifters are you using in this beast?
This engine recently made 1203hp on 44psi.
Beastie!
I'm trying to learn all I can about RB30's well RB'S in general because we didn't get any of them over hear in the U.S and I'm planning on building a 1990 Nissan single cab hard body pickup street/strip setup and over the past 2 year's I've kinda turned into a RB fanboy lol.. I do like to think I know a little bit about turbo LSX setup's at the moment I have a 403 based ls2 setup with a Garrett gtx5591 in a full size single cab 03 gmc Sierra truck or ute for yall lol I bought the turbo used that was supposed to be in good shape it lasted 3 months never made more than 18 pounds before it ate shit but i had it rebuilt by forced Inductions over hear with their bad ass billet wheel and swapped over to a tial 1.30 exhaust housing its and night difference before the rebuild it lit pretty quick before but now it lights up alot faster than you would think for a big turbo on a 403ci motor but I don't understand how or why they went with the turbo on that rb30 setup the way turbo sizing was taught to was more for big power drag race setups and keeping stock bottom end stuff alive I put my first turbo setup together in 2015 and im not rich so my knowledge is limited but I wouldn't put a t3 on a 4cyl unless it was tiny tiny, its obvious but ive always been told keep back pressure to a minimum ( Duh LoL) and run the biggest exhaust housing as you can because it'll keep the bottom end happier, I dont know if thats an a actual fact but makes sense to me so thats how I've always started out when picking a turbo and depending on cubic inches and what not I pick the turbine and compressor wheel size for example a stock bottom end 4.8 or 5.3 ls setup a t6 Borg Warner s475 with a 1.15 exhaust housing is a badass combo that will make some steam but on the other hand I dont know how ot would respond in something with a manual transmission I only fool around with th350,th400,80e's and powerglides I've only been involved with 1 setup with a t56 it was a 89 Camaro with a 434ci combo with a tall deck RHS block it had a single precision promod 102mm on it running on methanol it makes north of 1700hp. I know this is a long comment but im at work bored im a maintenance tech and we are running one line that never breaks sooooooo. Anyways is it just me or would this RB30 setup be alot happier with something in the 62-67mm with a smaller turbine and t4 housing
awesome video guys. but i have question. is it ok to just CNC port the heads and install with out upgrading the cam? i mean dose it increase any hp? or is it gonna create any issue if u install the CNC heads with out upgrading the cam.
Well done head work which includes port work (in the hole), bowl work (area above the valves), and a correct valve job (where the vales seal to the valve seat) *does make more power throughout the whole operating range no matter what cam is used.
Really cool, we can do that down here with one of my own designed turbo that I manufacture on a lot less boost.
We can see near 30psi at 3400, all on a 3ltr on eth.
Fair dinkum id like that sort of response and to see 30psi before 4000 rpm
Are you in Melbourne
@@michwas7270 in NZ check FB Mseturbosnz
@@stevemurch6974 I will do that right now cheers mate
Wonder what the EGTs are like with that tiny rear housing
55 seconds in when I saw the turbo intake with black duck tape I knew this would make over 1000hp
How's the new Garrett g42 stack up against this custom turbo for response? Any idea's
wow.63 exhaust housing running these numbers shit yeah
So no mention of the back pressure achieved during these runs?
What type of fuel? If this was done not on e85 its great. Thanks for the vid guys
Maybe watch the video, they tell you what fuel lol.
kinda old video, but im kinda old. so i have a full rb30de(in the u.s. long block). i have a spare rb25det head, i'm guessing keeping the rb30 a sohc would be easier to to make 1k hp?
That blow off 🔥
Questions can you put rb30 cams in rb25head?
Nice. Interested to know what turbine wheel is in that housing. I'd guess not the tiny little one most people think, as it's turbine wheels that matter the most for flow, not the housing.
He said GT45 core.
MafiaboysWorld That’s defo what I’d expect on a setup like that, but would love confirmation
Yeah, just didn't expect the A/R being a .63. 🤷
MafiaboysWorld not exactly a 0.63 T28 though! 0.63 for a GTX45 sized wheel is a whole ton bigger! I reckon that’s about as big as a small/medium GT40 turbine wheel. Just looks small as GT45 compressor sides are about 25% bigger than even GT42 ones!
@@StavTech Oh no, if it was a T25/28 flange it would be like an emphysema patient breathing through a straw. 🤣😂
But usually you see a GT45, the MINIMUM they're on is a T4 flange and sometimes even bigger (T6 truck flange anyone? 😂🤣) and if was T3, definitely more than a .63, usually like a .86 or 1.03/1.06 AR. 👍 Problem with that is then you end up seeing them stall up for 19 seconds before takeoff to build boost. 🤦
What was the back pressure?
Aiming for a responsive 1000Hp, It then made almost 1200Hp!! lol.
thats crank.. it will barely make 1000 wheel.
How much for that engine and the price to have it shipped here to alaska
Doesnt the single cam bottleneck performance at high rpm?
Can’t be the ultimate, no wrinkle red rocker cover😀
This comment is underrated. This engine couldn't be making 1000hp without the wrinkle red every skid factory fan knows this. Obviously clickbait. Probably 900hp is achievable without the wrinkle red but that's max for sure 🤟
Yet UK guys are like, yeah I got a stage 2 golf R, come at me bro
Possle twats in there remapped eco boost fiestas 😂 these guys with 1000 horse daily’s 😍
Mental
So how much would this cost, remove engine, build it to this level, put it back in. $20k?
what does the drive pressure get to ?
when can I pick the motor up
Not bad at all.
Actually never thought about turbos like this, I really thought that the backpressure would really choke it out. very fkn interesting (and effective) approach. Tiny rear housing, for a single. Where does this sit in a compressor map?🤣
i wonder how much wastegate they have on it so its not choking up on the turbine.
yea, I think you will probably find a huge as fuck wastegate on there haha
Wastegate has little to no effect on backpressure. If it did we'd all run tiny turbines, it'd be a no brainer.
I'm wondering what turbine wheel it has. May be a 0.63 T3 housing, but it's wheel that dictates the flow most, so if it's machined out for a much much bigger wheel than you'd expect, backpressure won't be as insane as you may think.
@@StavTech I'm guessing the gt45 wheel
@@sircefiro me too mate. As that's overkill for 1000 normally, but in a tiny housing it wouldn't be, so it makes sense.
Turbos aren't magic, can't beat physics.
Small A/R and big wheel is the most efficient way, it's what unlimited budget works race engines tend to have.
Smart
Japan power for sure hp...
Wondering if a variable geometry would do the job better?
hendrahendra High exhaust gas temperatures may be the issue.
Vgt turbos are really pretty heavy and expensive for what you get especially when you can make a setup like this work so well
That turbo seems like witch craft
Jeremy Clarkson approves
they're not having any compressor surge with that setup?
You'd be able to hear it if it were surging.
Wow
Turn the heat pump on fb, your making me feel cold
How is the absurd amount of exhaust pressure actually being dealt with? Is the gate just large enough to flow the excess?
It'd have to be a 55 - 60mm gate I reckon. There's a very fine balance between pre- turbine exhaust pressure and inlet manifold pressure. If you create too much pressure pre- turbine (compared to inlet man pressure) it just limits the incoming boost charge and you end up with a % of exhaust gas remaining in the cylinder. To counteract this, you need a well designed exhaust man with a large gate. You seem to be one of very few who put 2 + 2 together there... Being a mechanic of 19 odd years, I've argued this point with a lot of tuners over the years and none of them seemed to be able to wrap their little minds around this concept... Tuners would have to be the most arrogant group in the industry- they also are the first to pass the buck to anyone else when something goes wrong while they are tuning, sometimes rightly so but even when they know they fucked up they will blame everyone and anyone other than themselves.
@@danielbrealey2924 this is the correct explanation behind my question, yes. I like how they never answered though.
@@Jazz3006 All good bro. I enjoy answering stuff like this. To many internet know it all's pass on so much incorrect info... Have a good one
Unfortunately, a wastegate size has nothing to do with the exhaust backpressure. A little hint: turbine wheel size is more important than the turbine housing size. I'm not sure what wheel they are running, but stock GT45 wheel is huge.
@@danielbrealey2924 Yep, they do, with a tiny bit of info they think they know everything. Dunning Kruger at it's finest.
fuck yeah. this is cool
Step 1: Ring JPC and leave multiple messages because they never answer the phone.
Step 2: Wait
Step 3: Take your business elsewhere because they don't ring you back
Or worse, they do half the job and charge you as if the whole job had been completed. I had a brand new GT42 years ago that had been dropped in the box before I bought it and slightly bent the shaft. Took it to Paul (the guy who was running the dyno in this vid) to have the shaft straightened and balenced and V band the exhaust housing and would you believe they did the V band without even attempting to straighten the shaft. When he picked it up and handed it to me and the impeller still scuffed the compressor housing, he looked at me and said "oh that's just because the housing is loose and is slightly cocked"... Stupid me, took him at his word and handed over my hard earned money for something that I haven't been able to use (since around 2006 - 2007). It's still sitting in the box they gave it back to me in right now- I'm literally looking at it right now. Dishonest cunt he is. It just cost them a customer in the long run. And the type of customer who would have continued to use them for both work stuff and my own for years, we USED to get our turbos rebuilt through them with all our customers stuff. This GT42 was to be used on a 304. I've also had a turbo RB30 powered R31 that I've owned for 10 years or so, I will never go to them for anything. I would never buy anything from them and anytime their name comes up I tell everyone my experience I had with them and steer any customer thinking of using them for anything to go elsewhere- to someone more honest. Just like I do with another shop from Preston, who'll remain nameless (One of the two brothers pretended he was gonna fight me at Calder after expressing my experience of using their shop- but of coarse fat boy didn't have the nuts to back up his mouth 😅). These types of incidence have a ripple effect that spread far and wide
20psi at only 4000rpm, goes to 8900rpm with 41psi. 😮😮 That's an INSANE powerband on the engine dyno. Thought the little .63 would choke it out but proven well and truly wrong. 👍
But the question truly is, can it beat a Renault? 😁
MafiaboysWorld aslong as you have a proper sized wastegate and it can maintain boost till redline , back pressure won’t be an issue
@@Diesel8290 Yeah true that. Using a 4 port solenoid would help along with wastegate size for good boost control, just felt the total volume would choke the exhaust housing with that small A/R. Compressor map would be interesting to look at. 🤔
MafiaboysWorld interesting work tho 👌 in the merc diesel world we use vgt turbos to gain the low down boost. I wonder if that would help in gasoline applications?
@@Diesel8290 It does. Porsche are experts at using VGT's in their 911 Turbo's to maintain peak turbo efficiency through the rev range. 👍 That's why they all leave like stabbed rats off the line. 🤣😂
They actually loaded it up for ages at 3500rpm and slowly crept the rpm to 4000rpm to demonstrate the spool so realistically that is never going to be seen in a real world situation - it's still impressive it did that with a setup doing over 1100hp @ crank but you can also see in the sweep runs (which start with a hold to give the turbo some load) it isn't all in until around 5500rpm or so.
Yea, but will it chirp 2nd?
as long as you tip back your hat and dose it
Kw and Nm pretty please
stout combo
Not bad setup for 5k
5k? 1+1 =2 ect. If you can't count
What part of this build was 5K? Where are you pulling these figures? Maybe that would cover the head package- but that's about it
Stock crank forged or cast?
Factory Forged crank
@@ThatGuy4362 factory crank isn't forged
luke durden fair enough, service manual says it is.. mis print clearly ?
um why not use doch engine heand ?
Well it clearly doesn't need one hey. Many prefer to keep engines as they were sold.
@@fullboost Seems to be the case, I'd use DOHC because I have a NIssan that's DOHC so it's easier but this is doing 9000rpm and big hp so the SOHCer can do the business no doubt
2JZ>RB - Rb sloooowwwww
4 dislikes from V8 twats with only 350hp 😂
'responsive'
@ChrisHallett83 Im sure thats true.
Its an incredibly subjective word though, Im sure you will agree.
@ChrisHallett83 Im well aware the the results are awesome. Im not scoffing at the car just the choice of language.
Hahahaha if I need money to build one what’s the point of telling me how to build it if I have none like legit I am not as gifted with my hands to just say I could do that whenever I wanted although I wish I could thought then that would be fucking amazing
Easy fix, replace it with a barra
How about I slap u like a bitch because only girls like barra
it's most likely going into a VL or R31 skyline
I would take a rb over a barra anyday,i think the planet would,barra lol