RX-7ven

What is the max amount of boost you can put on a 10th Ann. TII? I have a HE-341 Holset turbo. Similar to the HE-55 they make. It's with a 38mm waste gate. Info plz.

Thanks.

Turbonut

iTrader: (1)

Fuel, electronic upgrades??
No matter what the turbo, the stock non altered fuel and electronics systems wil only handle so much boost properly.

RX-7ven

What all is there to do to change those?

88rx7gxlturbo

iTrader: (2)

Upgrade fuel pump, injectors, tuning, etc? If you don't have any of that upgraded you really shouldn't have bought a turbo.....

eage8

iTrader: (9)

you'll need some sort of aftermarket ECU or piggy back computer to control bigger fuel injectors.

RX-7ven

How do i get a piggy back ECU? What should i get like 800cc injectors? What exactly are secondary Injectors? Where do they go? What do they do? I know nothing about secondaries. I've had this turbo for years and i had it checked out and it's in perfect working order. Im getting a waldro 225 fuel pump.

What do i need to run 20 - 25psi on a TII basically?

philiptompkins

iTrader: (4)

damn I almost spit up my breakfast reading this.

There are many different tuning issues that you've touched on here, but you should research all of them.
you will not run 25psi, or even close to that, on pump gas.... end of story.
If you have been running this turbo for years, how much psi? Of course you can run any turbo with a stock computer but when you start cranking up the boost is when you're going to see serious problems.
Do you know how to rebuild motors? Are you ready to learn?

Aaron Cake

iTrader: (1)

I can't find any data on that turbocharger. Do you have a compressor map you can post?

I did see some pictures with a Google image search and the turbo looks like it would be too small on the turbine side. What flange does your turbo have?

Generally speaking though, any aftermarket turbo of a reasonable size requires a complete upgrade of the car. A standalone EMS, bigger injectors (primaryu and secondary), large fuel pump, front mounted intercooler, downpipe, etc.

Also, please stop bumping you topic. I deleted 5 bumps. You've given people very little info to go on, so it is difficult to answer your questions.

RX-7ven

Ok. The turbo used to be run on a RB25DET not a RX-7. "I know much differant" No i have never rebuild a Rotary But i am going to learn once i get the TII engine to my house. See im buying a 10th Anni. TII And the engine that is not in the car at this time. But once i finally get it here i am going to be rebuilding it and cleaning everything if not replacing it all. but what my plans were to either Bridge port or Monster port the irons and housings. I mean im going all out on this engine. I already have a Vert RX-7 so it doesn't matter what i do to this car.

But what i have so far is a R34-GTR front mount intercooler, A complete Turbo setup "Which i will post pics of" I dont yet have piping for the intercooler. I dont yet have a standalone or know what kind to even get. Not sure of what size injectors to get or fuel pump. "Thinking of maybe a 98' TT Supra fuel pump. No dowm pipe yet cuz the turbo outlet is a 5 inch V-Band. It's a T3 But i have a T3 to
T4 adaptor.

About the turbo:

There is general information available for the HE300 range.
Please follow the link below:

http://www.holset.co.uk/files/2_1_2_...et%20HE300.php

HE341 uses an impeller diameter of up to 90 mm.

Using the description and the part number of the compressor housing casting I was able to identify the turbocharger as 3599811. This is the turbocharger used on the Dodge Ram application on the 2003 model. The part number of the turbocharger will be found on the actuator.

The turbocharger has the following specifications:

Compressor inducer: 56 mm
Compressor exducer: 77 mm

Turbine inducer: 65 mm
Turbine exducer: 58 mm

Turbine housing critical area: 9 cm^2


(Turbo Setup Pics)






(Turbo It's Self)



If anything else is needed please ask.

Aaron Cake

iTrader: (1)

That hot side is way to small to support a ported rotary.

It's small for the stock ports as well.

RX-7ven

Whats that mean? So what are my options?

Evil Aviator

A T3 turbine is generally considered too small for an upgrade on these cars. Assuming that the engine does not choke on the hot side, and assuming that your compressor can produce the 0.46 kg/s (61 lbs/min) listed on the Holset website, that would calculate to only about 20psi max @ 8000 rpm. My guess is that it would choke out and produce about the same power as the stock turbo.

My recommendation: Sell your turbo setup and get a BNR upgrade for the TII engine, which is probably the best bang for the buck. You should be able to make a decent amount of horsepower with the turb upgrade, a low-budget piggyback like an S-AFC, minor fuel upgrades like a Walbro fuel pump and secondary fuel injectors, and a good exhaust. I think you will like it better than an all-out 20-25psi engine setup that would cost over $10,000. BNR can tell you what you need for the particular situation. See here:
http://www.bnrturbos.com/2ndGen.htm

FYI Orlando is full of fools who think they know about rotary engines, so be careful when shopping for tuners.

j9fd3s

iTrader: (3)

like this poor fellow here; https://www.rx7club.com/20b-forum-95/20b-rx8-777198/

20b intake on a 13b? sure.

Evil Aviator

LOL, the world is full of individuals who don't know much about cars. The problem with Orlando is that those types of individuals want to get paid for applying their poor skill to customers' cars. I swear, 90% of the "performance" auto shops there are full of idiots.

Here is a sample Orlando map that blew a customer's engine:

2-N-D-pink

iTrader: (27)

oh wow...ive never seen so many ebay mickey mouse things together all at once. great stuff man...im loving the turbo to manifold to flange thing you have going on there..awsome!



you know what the problem with orlando is? way too many idiots.....specifically honda ppl thinking that a honda with a b18 and a eclipse turbo is fast. its really great! Every one down there are mechanics and do work for cheap....

RX-7ven

I do agree with all of you that ppl in orlando suck big ***** and are all honda humping ****. lol but the wastegate i have is a 38mm Which i think should be good enough for a 15psi setup. I do also agree that i was shooting for the moon with a 20-25psi.. lol But i cant get rid of this turbo cuz no one wants it cuz know one knows wat it is. so i jst gotta play that cards i got.

Ok new plan and thank yall for knocking some since into my head, But what i need to run 15psi. Is:

AFC: I dont kno what kind to get
FMIC: I have that GTR FMIC But need 3' piping
Prim & Sec Injectors: I have know idea of what sizes to get. 720 Prim & 1000 Sec?
Down pipe: Who the hell makes a 5' pipe that comes off the V-band??

RX-7ven

lol not sure if that was sarcasume or not but thanks.. Just as long as it works right..!

Evil Aviator

That looks like the standard Ebay T3-T4 converter that is specially designed so that people can put the wrong turbo on their engine, lol.

What is wrong with the original turbo?

AFC: Get whatever your tuner uses.
Injectors: Depends. 720/1000 is good for about 375-400bhp.
Down pipe: If you insist on using that monstrosity rather than the stock turbo, then just have a custom pipe made. Five-inch bands are available.

eff_three_see_es

iTrader: (11)

that mess of pipes and **** is never even going to fit in the engine bay

RX-7ven

I dont have a stock turbo..

Thats the power range i am looking for.

j9fd3s

iTrader: (3)

isnt that running like 200% duty cycle at high load?

i looked at a couple of my maps in 3d, and those look ugly... and i'm not a great tuner!

j9fd3s

iTrader: (3)

375-400 on a stock ecu even with an afc, has a good chance of engine failure.

i dont know about you, but i'm lazy, the engine is heavy and dirty, i like it when its in the car.

i'm old too, so i like driving the car too

i might run that turbo, but use a haltech/wolf/microtech to run it.

if you want to keep the stock ecu, you should keep the stock turbo, and go with a BNR stage 1, or equivalent.

remember 280hp on a stock ecu/turbo is faster than 0hp on a big turbo/blown engine

Evil Aviator

I think you will have trouble making over 300bhp with those cheapie parts, but I guess we will see.

The table shows the ignition map. Yes, it is ugly. I really wish I could find the downpipe picture.

RX-7ven

But what everyone doesn't understand is that im fully building the engine up. most likely a PPort. im not jst another ricer thinking he's gotta bad *** ride cuz it's turboed. Im planning on this build up at least taking a year. Im intending on making this a Supra killer. Thats my long term goal. And if your going to deny my plans and talk down to it then i ask you to please not to post in my thread.

Evil Aviator

What you don't understand is that your current turbo setup is ghetto. There is nothing wrong with that in itself, but it is in no way, shape, or form suitable for an all-out pp engine. Also, an all-out pp turbo engine with supporting mods on the car will cost over $50,000.

Unlike many of the other car forums full of morons, this forum tries to keep things realistic. Yes, it sounds like people are bashing dreams, but the intent is to inform others about realistic costs, labor, and performance. Therefore, it is not that people on this forum are denying your dreams, it is that you are denying reality.

Now, back to reality, which rotary shop told you that your current turbo setup was good for a pp engine, and what was their cost estimate and performance estimate for building it? What additional modifications to the car did they recommend?