Rotorize360

Hey whats up every one, after shoping around for turbos for the rx8 I wasnt impressed with the amount of performance you get from alot of these kits. Usually thats the case with full kits from manufacturers. So since Ive had alot of exp boosting piston engines I decided to peice together a kit for the rx8. I have 3 questions for you guys.

1. Ive been looking for rx8 manifolds and I havent been able to find anything seperate. Everything comes with a kit. So ive been looking into using an rx7 one but discovered it wouldnt fit. So my question is, does any one make a rx8 manifold or will I have to get one custom fabricated.

2. The ptp kit uses a t4 which is pretty laggy on piston engines but Ive been reading that rotaries produce and maintain higher EGT's which would be beneficial for a large turbo. So I was looking at T66's T67's and T76's.

3. How much power can the stock rotary handle and what would I need to do to build it for more boost.

Thanks

swoope

iTrader: (5)

hey,
not a lot is up. you might win the worst / most stupid first post award!!!

beers

now you can have you way with him.

Cam

iTrader: (1)

Swoope, not a very cordial way to treat a new member. Should he/she of searched, sure. No reason for the flaming though.

You may want to refamilarize yourself with forum rules..

https://www.rx8club.com/faq.php?faq=...q_user_conduct

1. This is not a flame war site, so please do not engage in such. No distinction will be made between the instigator and those who merely participate.

2. Personal attacks against other forum members will not be tolerated, nor will any type of "trolling" for a fight. This includes political attacks, slurs, or sneering at any viewpoint or political party.

4. Be respectful. This is harder to define, but will be moderated. An example would be disrespecting RX-8 owners who chose an automatic transmission over a manual, and "sneering" at them or acting like they're idiots for the choice they made. If a moderator believes you are being purposefully disrespectful to a fellow member, you will be notified. Bashing for the sake of bashing will not be tolerated.

Rotorize, Im not to familiar with FI setups so I cant help much. Try searching or just browsing around, you way find some ideas.

Welcome to Rx8club.

rotarygod

You will need to fabricate your own manifold.

T-04's can be had in many different trims so they may or may not be laggy. T-04 is a class of turbos that span a very wide range. You can easily size them good for any use.

How much power it can handle isn't so much the issue as how well does the rotary tolerate poor tuning? Not well. So far the Renesis has been proven to go up to 350 rwhp with no issues on pump gas. Proper tuning is key though along with proper sizing of all components.

The Ace

Sounds to me like you don't have any experience on rotaries. So, even if you manage to piece together a turbo kit (turbine, IC, manifold, lines, and of course the stand-alone), you will still have to fine-tune the installation. I'm guessing you will find it extremely difficult to do so.....
You could start by taking apart a 13BT or a 13REW and looking at their turbo setups

Rotorize360

yeah but ptp is vague on both their site and the car and driver review on what trim they use so I have no idea. I called and asked and they wouldnt tell me. so do you have any idea what trim it is? As for your secound response of course, luckily im out here in florida so I have alot of people that know what they are doing in the area with rotary. high powered drag rotaries are common.

Ive worked on a FC rx7 before. Im just getting my feet wet though but ill be alright.

Rotorize360

i found a shop that is custom fabing one for me. the cost is 650 and it will be good for 700 horses. hurray for me.

Rotorize360

just bought a tial waste gate , k and n filter and found a used hks ssq bov on ebay for 75 bucks shiped and ordered it. So far im at 990 on my build. You guys suck, no input?

unreal89

I've started saving some money to build my own kit as well. Its gonna take a while @ $7/hr and part time .I hope you guys keep us updated. I really want to see your setups.
By the way, GTAW, any Idea on what turbo you are going to use? I was thinking a t4/60-1 or 62-1 would be a good choice. Good luck to both of you guys!

mike1324a

Actually that looks really nice. Very professional looking in my opinion.

Rotorize360

you did the welds yourself? everythings looking good for you so far, youll probably end up finishing your set up before mine and its cool your using the 60 - 1. I might go with the GT35R. Im debating and doing some research now before I pick the turbo. Right now im waiting for a call to see how much its going to cost me to custom fabricate a down pipe.

Tial 38mm Wastegate is what im using

Rotorize360

Heres my build so far so you can get an idea of how its going. Im using most of the same stuff that ptp uses in their kit and the point I was trying to get across is that they are ripping people off with 5k for the set up. In total im spending 1356 on the set up so far and I have most of the stuff taken care of already. It cost me alot more then it would if I was building something more common because alot of custom fabing was needed.

1. Rx8 Turbo manifold $650 custom fabricated
2. Tial wastegate $190
3. K and N filter $50
4. HKS SSQ BOV $75 w/ flange via ebay what a deal
5. Oil lines $80
6. Intercooler $136
7. Piping Couplers and t bolt clamps $175

also what are you doing about the inter cooler and the piping? Im going to be using some mandrel u bends and making the piping myself

ChrisRX8PR

iTrader: (1)

Hello guys, I'm pretty new to the forum but I'm also working on a turbo kit for my 8. I already have most of the stuff. I came from Puerto Rico on January so I got a chance to se most of the turboed 8's they have there before coming here. As for power, as long as the fuel/ ifnition management is there they can go pretty high. I know a fellow that has one making 400-415whp on factory internals and I got a call yesterday from him saying someone had coaxed 540whp on a dyno with stock internals as well. This is with VP oviously but you can take away about 100 whp to have an estimate for pump gas. I don't have any pics yet but I'll post them here as soon as I do...three heads think better than one.

Esmeril

p.s. nice kit in progress, congrats!

unreal89

Thats so cool! 540whp. How much psi, any dyno graphs? And what turbo. More info PLEASE

mike1324a

Even 400whp is more then anything we have here. Do you have any specifics like psi and on what turbo.

RX8PR

Chris,

I love to know who is owner and which mechanic do the job to see how they make it, with or without internal modification 540 hp with the Renesis is amazing.

In our experience with the Renesis we can't maked more than 350 hp at the wheel with reability or longevity.
We maked 400 hp but the engine don't pass two weeks..........................
at the end of the day I swap the Renesis with a 3 rotor and the car makes 525 hp at the wheel with pump gas and 16 psi of boost.

here in Puerto Rico the rotary mechanics are the best of the best, probably someone find a great set up and is making big horse power with the Renisis..........................

Manuel

zoom44

no they aren't. they have spent alot of money and man hours developing and testing and developing and testing and tuning and trying different tuning methods etc etc- to bring a reliable product people. your point is completly invalid. they have abusiness to run and people to pay and insurance and all the other bills related to running a brick and mortar business. if you blow your motor up you arent going to try to blame any one but your self. they have to try to elimate the possibility of any one blaming them for a failure so they dont loose their lively hood. how much is piece of mind worth if your house is on the line? or the food on your kid's plate?

RotaryRider36

Im more concerned with how well the transmission holds up at those power levels than I am with the motor holding up. RX8PR, are you using the rx8 6speed with upgraded parts like rgonza, or did you get a completely different trans?

rkostolni

Did you actually blow any motors figuring this out or is this just an educated guess?

Rotorize360

its simply not worth it you may need that peice of mind if you dont know what your doing but all they are doing is simply peicing together a turbo setup and thats not something thats to hard to do. Ive already done several set ups on various cars, Honda Accords, G35s, NSX's, S2000's, Various B series and D series engines. All of the kits out there on the market are a waste of money most of them dont even give you a base tune to work with or even engine management. I have a good Idea of how much their kits cost them and how much of a profit they are turning from the kits. Peicing together my kit Im at half of what they are charging for their kit and im using a far more expensive turbo then they did. I am also going to have plenty of money to spare for engine management.

Im not paying 2 - 3 grand more for peice of mind because I have the experience to do this on my own. Any one who has ever built a turbo set up from scratch or built an engine themselves can tell you that these manufactured kits are a waste. You will get the same results with your set up or better.

The only thing you could possibly argue is that they can tune better but Im across the country and they arent going to tune my car. Thats the only thing I would need from them. I pose this question to you ...

If I go out and buy their exact same set up which costs far less then what they are charging you will it be any less effective or reliable?

the answer is no because all of the parts are the exact same parts they are using. Im not going to pay double for their name. Im sorry but thats just riddiculous. Take into account that they have merchant accounts they are already making a couple of hundread off my set up which is much cheaper and the same thing. Then wheres the rest of that money going? Str8 into their pocket. If you want to go ahead and give them 2k you can go and do that but that is ubsurd and riddiculous seing I can cook up the same set up for cheaper.

They can spend all the man hours they want but my set up will be just as reliable and all of my points are valid. They may have pulled the whool over your eyes but not mine, I used to work at cybernation and was part of the team that built the cybernation RSX turbo kit that is world renouned. We had the fastest RSX in the world for a long period of time. I know exactly what these people do how they do it and how much they get their parts for because I have been on both sides of the fence.

Rotorize360

ive been to pr you guys are amazing with rotaries, every one knows this even in fl if you want to get your rotary worked on you have to find a puerto rican. Ive seen a couple tercels run down the 1320 with rotaries built by you guys and the results were insane.