Not so. With a low mounted turbo, you have to look at the clearance of the two lines running along the frame rail to the firewall.

Someone else will have to chime in, I've only played with rhd cars so no such issue exsists

My shorty manifold is similar to Turblown's and there is good clearance on the AC lines.

Attachment 624043

Any updates on this?

Can't wait to see more results. Great stuff!

Its going to be a while on this car.. So I am going to do it on another car( our 9180 FC, waiting for new clutch now )

A lot of people have been asking for pump gas results in terms of boost response.

Here is an FD I have remotely tuned. It is on pump gas with a large street port. In my experience porting hurts response. The new twinport turbosmart IWG actuator is being added and this car will be going to 30psi with water injection.

This is frustrating. I just went itb's and standalone.... now I want to make a plenum and a custom exhaust manifold so I can run one of these bad boys along with it.

Is the actuator really worth the extra money?

When the supplied low boost canister can only do 11lbs pounds with duty cycle maxed on the boost controller i would say yes it is.

Either that or order another but higher psi Borg Warner canister.


J.

Keep in mind we got to 27 psi reliabily with medium can on Shawns 8374 iwg. This was with 7 turns of preload on the actuator however. We are waiting on the clutch to arrive and we will hop back on and thourghly test all settings and configurations.

Here is another forum member's 8374 system on pump gas with a large street port. OE BW medium actuator.
Details are all in the chart, you can follow the blue trace to show where the engine was. Bottom near .01 TPS @ 2767RPMs is the start of the action. I ended the trace at the 99.60 WOT.

Can we see the power and torque graph

I'm sold on the 8374, thank God I didn't go for the GT35 I had in mind.

This car, and the other one are being remotely tuned on the street. I believe both will see the dyno when finished.

Just curious, is the .92 A/R housing on a 7670, will that fit on a 8374? are they the same housing? or are they different? Looking to possibly swap housing on two turbo's. anyone know?

Internal bore is different. 70 vs 74mm turbine wheels. Everything else is the same.

good choice, you won't regret it - EFR 8374 is THAT good

We will be updating our efr iwg turbo systems very soon!

Hopefully we start to see some more results from these as more of them are installed. I'd really love to see if the prediction on the first page of almost 600whp is actually possible on this IWG turbo, especially since IIRC that is near the theoretical upper limit of this turbo on a rotary. I'd also like to see how the IWG responds above 30psi.

600whp on pump gas(with water injection) and this kind of response would make for a very fun street car.

Not sure there are a lot of folks with 600hp 13b's on pump and water. I highly doubt 600 on any 8374. Maybe on the 9180. Strictly e85 if you're not into rebuilding a lot, I think.

I believe Rice Racing has done it a few times, 600 on pump and water that is. IIRC, Raceonly, who has posted in this thread, did 700+ on pump and water, with a 9180 no less.

Impressive, but I don't know how they sleep at night.

You realise water injection isn't some kind of voodoo magic right? There are plenty of SAE papers and numerous other academic papers on it.

In shitbox T2 block based context green brothers went to something like 750rwhp (?) on a street driven extend port 13b on water alone before going to water meth running a basic pre turbo atomiser. Thing did a lot of running too.

If you are worried about engine longevity I think the oil change frequency and oil thinning of an alcohol fueled cars are of greater risk than running WI for a similar power target.

Sure, here...

That's with a 9180...
And that's great. But, you probably couldn't pay me to push that power on a pump 13b.
If you're on that tip then god speed, sir.

He had earlier results on a fresher motor and different turbo:

https://www.rx7club.com/auxiliary-in...ection-863250/

Green Brothers

https://www.rx7club.com/auxiliary-in...rbo-wi-974884/

for the sake of discussion - ive experimented with 2 different cars using 2 different pre-turbo water injection configs and a couple different nozzle configurations. both lost quite a lot of power for me. While i am sure that every setup is different there is a reason that the AEM guys mutter under their breath "you can run straight meth in our system"

Water injection doesn't make power on its own, it allows you to make more power via other means(usually increasing boost) by preventing detonation that would otherwise occur under such conditions.

Forgot about that thread. Good stuff :icon_tup:

Shaun and Elliot have talked me into getting this little hairdryer for my 91....

I'm running on 15 year old Knightsports stuff and the car has always been rock solid so the fixing what aint broke part has me a bit nervous. But, the flex fuel option, E85, IWG, IBV, cast manifold, ID injectors, adaptronic...all add up to a modern package that i expect will breath some serious new life/fun into the car. I'm sure i'll find out quickly that a 235 rear tire wont be nearly enough... :D

Here we go...it should be done just in time to stick under a cover for the winter ;)

I know this off the topic, but i wonder if anyone else compare the BW S363 with the 8374? Considering they close size but using different technology.

S363(aka s362) setups I have tuned make a tick less power and a lot laggier than the EFRs.

On a side note another customer of ours had made 426rwhp at 15.5 psi on our EFR IWG 8374 kit. He has 3 inch exhaust, a ported motor and is on E85. Adaptronic pnp is being tuned by Luke at Redline Perf. Higher boost pulls to come.

Hi Jacob. Are the dyno pics you posted here still available? And how did you find the 8374 at that state of tune? Would it be possible to describe it as N/A - like throttle response at all?
Im running a street port at 12psi and rich tune also. 338 with a tdx61 on a dynotech.
Cant get too much more safely on donkey fuel, but with a sniff of meth (and a diff upgrade) the sky's the limit. But its just an fb, dont really need much more power.
Just chasing more throttle response really. Tossing up whether to go 7670 or 8374.

If you are after throttle response then it makes sense to go with the smallest compressor possible that still meets your power needs. I would use the 7670 with a full 3.5" exhaust system.

^ ok thanks. How does the 8374 compare to the tdx61 in your experience?

Hey Elliot, I know some Ecu make a difference when it comes to tuning, I saw only see 1 tune with power fc with the 7670 setup. However can the power fc with the 8374 IWG setup make similar power like the adaptronic Ecu? I am trying to justify if I need to replaced my ECU.

A few people have claimed a gain with the Adaptronic over the PFC, but I really want to see it myself before believing it.

Ok tnx, for now i will stick with the pfc, btw I order the Manifold on Thursday.

Adaptronic has been making a lot of noise lately in the plug'n'play demographic, and rightly so.
But, the PFC is still the most widely supported and utilized plug'n'play ecu for RX7's. It has some drawbacks(they all do), but it's not a bad choice by any stretch.

Most we made on a 9180 with pump was 626rwhp on 32psi.

That 703rwhp thread was a GT4202 on my rx7 and it was on 35psi

13/15psi pump gas 8374 IWG runs attached

Do you have the same car with rpm instead of ground speed?

Dyno starts right around 4,000rpm.

To me it looks like this car has slightly taller tire than the usual 25" (25.4") or 8,100rpm redline (which would be weird).

Would like to see 2,000-8,000rpm sweep on this because 4,000-8,000rpm doesn't show the EFR 8374 strengths compared to the usual GT3582R turbos in my opinion.

Thanks for posting what you had though!

I do not have any more info. Every turbo system dyno I have ever recieved from Speed1 is always a late rpm start and always in wheelspeed.

what dyno did you use with the 9180 and what rear housing on it if you dnt mind me asking

I have another dyno sheet of a car I remotely tuned. It was tuned on pump gas only. The owner hooked up and turned on the water/alcohol injection for the dyno. It is an 8374 IWG FD3S with a 3" exhaust and large streetport.

@ 17.25 psi it made 440rwhp/371rwtq running mid 10s. No RPMs on the dyno sheet and the car is now parked for the winter. It would hold 10.9 psi with no controller on all the way to redline.

I'll just park this here and dub it "BEFORE".

Highest Peak DynoJet SAE was just shy of 250

Pineapple Engine with a small street port and 3" racing beat exhaust (with y-pipe and dual mufflers)

:lol::lol: