borg warner s200 with Bad result

[Sub Boy]

Not sure what boost yet....what would you think?

[David]

Originally Posted by Full-Race Geoff

OK - that makes sense. It is definitely not a configuration I recommend... we always try to help our customers get the right setup for the application but a proper twinscroll manifold and divided turbine housing will go a long way in improving your powerband



i dont think you are going to gain too much from the adjustable cam wheels, although the 264 cams will help heaps. More than anything a legitimate divided manifold and twinscroll turbine housing will do what you want. I ran that turbo on a lot of different setups and its laggy when used with an undivided manifold, but does have excellent top end for a 62mm inducer turbo. Overall, it behaves, spools and makes similar power to the 66mm 9180

Thanks for the advice Geoff it is appreciated.

I chose the turbo over two years ago when they were new to the market and there weren't many result about. I chose this turbo as I think you supplied one to driftworks to run on there R32 1JZ (open scroll) and the guy mapping it was impressed with the power and thought it would be nice on my 2JZ.

I dont really want to change the manifolds again, but I would consider a new turbo or turbo redesign. Would it be possible and would there be any benefit to rebuilding my turbo to 83/75 spec?

[bigmikespec]

Originally Posted by Sub Boy

Not sure what boost yet....what would you think?

Keep going until it stops making power!!!!

[Sub Boy]

Originally Posted by bigmikespec

Keep going until it stops making power!!!!

Yeah....I always thought thats how it was done too...?
I hadn't really had a boost level in my head, It will be where ever the engine can run up to without running out of go.
I only have BP 98 in ChCh, So it will only be tuned on that.

[Full-Race Geoff]

Originally Posted by David

Thanks for the advice Geoff it is appreciated.

I chose the turbo over two years ago when they were new to the market and there weren't many result about. I chose this turbo as I think you supplied one to driftworks to run on there R32 1JZ (open scroll) and the guy mapping it was impressed with the power and thought it would be nice on my 2JZ.

I dont really want to change the manifolds again, but I would consider a new turbo or turbo redesign. Would it be possible and would there be any benefit to rebuilding my turbo to 83/75 spec?

happy to help - what are your goals for the car? I suggest using a proper manifold, since it is such a critical part in the turbo system... china made Ebay manifolds are not going to get you great performance but if you must run china manifolds at least get the twinscroll it's better than the china undivided

I vaguely remember the driftworks 1jz, but this is a bit of a large turbo, especially undivided, to use on a 2.5L engine for drifting but good for drag highway and dyno

Originally Posted by Sub Boy

Not sure what boost yet....what would you think?

Originally Posted by Sub Boy

I hadn't really had a boost level in my head, It will be where ever the engine can run up to without running out of go. I only have BP 98 in ChCh, So it will only be tuned on that.

my recomendation as shown in matchbot for a built 3.0L RB26 on 98ron, and EFR 8374 internal WG with proper tuning, boost peaking at 30 at 6500rpm then purposely tapering to 26 by 7500rpm

[Sub Boy]

Thanks Geoff, I will pass that on to the tuners..... I can't read any of that, I'm just a spanner monkey!

Does it predict output at that boost?

[Sub Boy]

Scratch that, I found it in there....783HP

[Full-Race Geoff]

the key thing for you to keep in mind is: the tuner should ensure boost tapers down to 25-26psi by redline. Since you are on a 3.0L (not 2.6L) engine you would be running it off the compressor map at redline and full tilt (note dot #6 is off the compressor map) so reduce the boost a tiny bit at the very high RPM points and it can mostly stay on the map. I hope this makes sense. I have not tested the .92 a/r efr on a 3L engine yet, will be interesting to see how it does.

For the sake of a visual comparison: here is your 3.0L engine roughly plotted with the EFR 8374, boost rising to 30, then dropping to 26

you can see the 3.0L engine is asking for a tiny bit more airflow (80lb/min) than the turbo is comfortable producing (up to 79lb/min) so point #6 at 7500rpm is off the map. Reducing the boost a tiny bit gets this looking a little better. This is always a balance becuase this is how to get the fastest response and spool and still have great top end. It should work well for you, generating early spool and gobs of midrange. I can explain with another graph if you do not follow what I am trying to explain here


now changing the displacement to '2.6' to compare with a stock displacement RB26 engine:

you can see the 2.6L keeps this turbo on the compressor map at 30psi boost, which is the setup I run on my personal RB26 and 4G63 engines

edit: dont forget the HP rating given is at the crank not at the wheels. response will be incredible on this setup

[Sub Boy]

I think it makes sense Geoff....I'm kinda glad we didn't go for he 7670, that would have run out of steam pretty quick.
It looks very well matched for the RB26, we will have to wait and see how my RB30 goes with it. In fairness I'm not too concerned if it runs out of puff past 7500rpm anyway, it is not a drag car, just a weekend toy.....so not revving it so high will look after it a little better, and I'm happy to sacrifice top end dyno figures for lots of real world usuable response

.....pity there isn't a 9180 with an internal gate I could try too!

[bigmikespec]

If I can get my head around the matchbot I will check out a S300SX with 66mm inducer for my RB26 and post it up.

[GTR_JOEY]

This is more aimed at Geoff but im sure the rest of you guys that are interested in a 83/75 will find this interesting.

recently had my car tuned with a 83/75:

supporting mods are

forged 2.6L engine
Full race twin scroll manifold x2 44mm tial gates
4inch dump to cat, 3.5 after cat
sard 800cc injectors
nismo intank pump
tomei 260 cams
Link G4 with crank trigger set up
Koyo 100mm thick intercooler

Dunno if u remember Geoff but i was looking to make 400rwkw, so with the mods i had you recommended the 83 75... the car ended up making a genuine 375rwkw at 18psi off gate spring pressure.

fuel pump ran out of puff and the injectors were starting to get about 75% duty cycle.
18 pound was made at around 5000 rpm though we hope to improve that by playing with cam gears which are set at 0 at the moment and buy using different fuel

The decision was then made to do a fuel system over haul. Changes include

ID2000cc injectors
twin entry rail
sard reg
surge tank running twin deatschworks pumps being fed by the nismo intake
also changing over to E85 with ethenol sensor

Like i said improvements to response are hopefully going to be made as im not 100 percent happy with it as it is. At the end of the day Geoff i think we should crack the 400 no worries .

I really hope it comes on better with the E85 cause its a wicked sounding turbo and id like to keep it on there

[Lith]

Nice, flow sounds awesome- though I'm getting increasingly concerned about some of the spool numbers I've heard for the S300SXs. What hot side do you have on it?

[GTR_JOEY]

sorry mate, forgot to mention its a .91 rear housing so the smallest one... i have the same concern as you do, but i will not judge it untill i have full boost running through it and its a proper set up. My tuner feels there is some good potential so we arent releasing the results untill its 100%.

might i mention that this is a known very conservative dyno, im sure the results would look alot better on some other dynos out there

if it was to only make 400rwkw with that response id throw it in the bin, but i have a feeling its going to pull a fair bit more then that so it may be promising.

at the end of the day its a 950 dollar turbo so im reasonably happy with it so far

Ill also mention that atm its one hell of a ride, the way it comes on, sounds and feels is just bloody awesome.... ask PIGGAZ he'll tell ya

[Piggaz]

Originally Posted by GTR_JOEY

sorry mate, forgot to mention its a .91 rear housing so the smallest one... i have the same concern as you do, but i will not judge it untill i have full boost running through it and its a proper set up. My tuner feels there is some good potential so we arent releasing the results untill its 100%.

might i mention that this is a known very conservative dyno, im sure the results would look alot better on some other dynos out there

if it was to only make 400rwkw with that response id throw it in the bin, but i have a feeling its going to pull a fair bit more then that so it may be promising.

at the end of the day its a 950 dollar turbo so im reasonably happy with it so far

Ill also mention that atm its one hell of a ride, the way it comes on, sounds and feels is just bloody awesome.... ask PIGGAZ he'll tell ya

I have been driving Joeys car around the last few days and it's a damn fun car. It's a little lethargic and I can't help to think that this turbo on a 2.8 or 3.0 would be one awsome setup. Like Joey said, there is still cam timing to be fiddled with and with E85 should help some more.
I dropped the car out to the tuners last night for the fuel overhaul to being so results will be in soon.
OH THE NOISE !!! It's intoxicating!

[Lith]

Nice! Yeah turbo choice has got to partly make you happy in general - sounds like a heap of fun. A mate has the exact same unit (inc. .91a/r TS) on an RB30 with an RB25 NVCS head in a stripped out R32 GTSt so should be pretty exciting haha