2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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decided 2 go bre, stand alone+ one big debt now whats next

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Old 09-06-07, 03:27 PM
  #26  
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The bre only came with an auto tranny and has omg you guessed it an auto counterweight. Good if your going with a lightweight flywheel but you will need to swap it if your using a stock one.
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Old 09-06-07, 03:44 PM
  #27  
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well for one, intercoolers are made of aluminum... absorbs lots of heat.
so if you spray meth before the turbo, it will be exposed to heat once it reaches the intercooler. Thus heating up the meth more than if it was just going staight into the TB.

Second, intercoolers create turbulance in the airflow, and lag in the boost response.
You eliminate both with straight meth. (by saying straight meth, i mean a pipe straight from the turbo to the TB. Most people using meth are using some sort of mix)

Third, intercoolers block the radiator. you sacrifice cooler intake temps for highr water temps (BAD).
Straight meth solves this problem too.

Win Win

The only bad side to this set up is, once you install an IC, your done... Meth you gotta install the kit, then pay for meth whenever you run out.
Just one more fluid to worry about.
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Old 09-06-07, 04:00 PM
  #28  
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I call BS
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Old 09-06-07, 04:11 PM
  #29  
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by cozmo kraemer
Registered User Preliminary testing revealed 3 degrees C above ambient intake temps without the intercooler and dual jet water/alcohol injection.
post your numbers...

Last edited by stylEmon; 09-06-07 at 04:16 PM.
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Old 09-06-07, 08:26 PM
  #30  
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For a purpose built drag car trailer queen maybe - & I still say MAYBE. Here's a few things to ponder though
1) Street car isn't going to run on pure meth
2) Run a VMIC and avoid that problem with blocking heat
3) CO2 spray the intercooler or duct it and place it in the right area and temps will get down pretty damn fast then add the meth and I dare say they will be lower.... they HAVE to be lower if you're taking heat out. it's like saying meth will remove 95% and the Intercooler will remove 50%.... ok well if you start @ 300 and take 50% out, than 95% from 50%, you'll still be lower.... I still stand by your math being flawed. I'll try to dig it up but I recall BDC seeing UNDER ambient temps using the STOCK TMIC and a MIX of Meth....
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Old 09-06-07, 08:44 PM
  #31  
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phew good thing this isnt about the bre swap by this guy anymore and its a discussion about meth injection vs intercooler... hahaha...

if i was to turbo charge my rx7 right now, i'd go straight water-meth injection... not so sure about a ic though... maybe a small small vmount? haha...
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Old 09-06-07, 08:51 PM
  #32  
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Meh - the OP was lurking around for aver a 1/2 hour and posted nothing.... I'm waiting for a PM
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Old 09-06-07, 10:01 PM
  #33  
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Originally Posted by blwn rtr 89'
so now i got a few morw things 2 consider, now that im almost flat broke (i.e. bank loan)
I'm almost afraid to ask this, but what kind of "bank" gave you a loan to buy performance car parts when you are unemployed? I would be more worried about broken fingers and double digit interest than building the car if I were you. I recommend returning everything you bought and paying back the loan immediately, as you are in way over your head. I am not writing this to rag on you, but rather to try and save you a lot of trouble. I really don't like to see fellow rotary engine enthusiasts in this kind of situation, and there is a way out if you are willing to take it.
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Old 09-06-07, 10:18 PM
  #34  
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It's probably a student loan refund check, like excess funds from the check financial aid cut to the school. I've gotten a few, but I put them directly back into the hands of the loaner, it's not free money. Some people, however, seem to think that it is.
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Old 09-06-07, 11:07 PM
  #35  
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hey all aside from titanum tt being a total douchebag

no need 2 bicker like women, i have a girlfriend for that already.

ne ways, the update 4 whoevers intrested:

i got screwed outta the bre, the guy sold it 2 some body who was gonna pay more for it localy. so what ever,

i put an order through tigerjapanese for a jdm front clip(91 t2), and i have a friend with a very nice apexi fmic(although for a 240) with some work will perform accordingly,

and i have a 1st gen hks ssqv laying around somewhere ill put on the car,

i just have a few more questions for you guys,

clutch assembley i have from my na is practly brand new, and im curious if it will fit the same, or if theirs ne thing i can do 2 make it? cuz it was like $600

and also how would a 70mm trim desiel turbo do on the t2???

its from a some pick up(dodge or ford), we where gonna put it on a wbody, and it was expected 2 run like a mid 11 1/4 mile, but lost intrest after he bought a ion redline.

so thats laying around, but im assuming i should first just install the motor and get the ecu set up, and take baby steps twards that. cuz reguardless of opinion the rotoary is really different from ne thing ive ever worked on, i dont wanna brake it.

and so far most of you have been very helpful in this prosess, of getting my project off the ground.

i think i will be doing a RHD conversion also, (depending on condition of jdm parts).

so i will be posting pics of the whole process within the next few weeks.

and paint will come in some where in the middle of all this(half my garage is a paint both)

so i have 2 be relitavely clean with all this.

and one last question:

did ne body ever make a write up on stitchwelding the fc?

i can guess pretty much where 2 do it, but any direction would help.

i read the industrial foam stiffing write up, but im not shure if thats worth it.

i could be wrong though.
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Old 09-06-07, 11:21 PM
  #36  
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Originally Posted by Evil Aviator
I'm almost afraid to ask this, but what kind of "bank" gave you a loan to buy performance car parts when you are unemployed? I would be more worried about broken fingers and double digit interest than building the car if I were you. I recommend returning everything you bought and paying back the loan immediately, as you are in way over your head. I am not writing this to rag on you, but rather to try and save you a lot of trouble. I really don't like to see fellow rotary engine enthusiasts in this kind of situation, and there is a way out if you are willing to take it.
forgot 2 update my profile i guess, im not unemployed ne more, im back 2 school, and working at arbys

not the best job but i cant, work at the shop, and go 2 school at the same time, plus work on my own car.

i get tired of other peoples ****, and get fed up being dirty as **** all day, i have 2 more years of vocational school 2 finish up(dont need it really, but you learn something new every day), and ive been takein basic psyc classes, in case my shop goes under, i can go back for pre-med and then medical(11 long years if i dont get the small **** outta the way.

but no worrys on the loan (personal loan), ive got pretty good credit, a new condo paid off and in my name, and i got 1200 from a side job yesturday, and it wasent for 2 much just enough 2 get this moveing again.

but i cant legaly drive again untill 11-08-07, i got my licence suspended cuz of like a 3 page wrap sheet.

so i got time, and arbys works cuz i walk there and my manager wants it(shes pretty cute).
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Old 09-07-07, 12:11 AM
  #37  
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Remember, I live in phoenix. Every car company tests cars out here because of the harsh environment.

i've personally seen the numbers. And my daily driven T2 is getting the same set up. I am a little confused when you say 'run on pure meth'.

You do realize that I am talking about water/methanol auxilary injection right? You still run gas, but then inject water/meth into the intake. Methanal burns cool, and cools the intake charge. On my current set up, the meth kicks on at 6psi.

on another car(cozmo kreamer), the test was done with just an intercooler, intercooler and one injector, intercooler and 2 inj, and with just 2 injectors.

The run with JUST methanol/water injection was the coolest run. This way also had the best boost response.

V-mounts are alright, i was gonna go that way until i saw this test (done by Turblown). The problem is the cost, and you are still getting hot air from the intercooler.

First you have to buy the v-mount and kit, then relocate the radiator, then duct the rad/IC, then reverse vented hood... What is the result? your intercooler gets air LAST... after the radiator, and after the condenser (if AC). Not worth the $ if you ask me.

What I think you are missing in the equation, is that an intercooler will ALWAYS (unless CO2'd) ALWAYS be counter-productive to methanol. Methanol hits the compressor colder than ambient. On the way to the TB, if methanol has to go to through an intercooler, the intercooler is ambient AT BEST!!!! COUNTER-PRODUCTIVE.
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Old 09-07-07, 04:23 AM
  #38  
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check out the ai forum for more info on meth injection.

as stylemon said, vmounts are great if you want to pay for the setup. Most fc owners are busto and cant afford a vmount setup and hood.

stylemon you said "First you have to buy the v-mount and kit, then relocate the radiator, then duct the rad/IC, then reverse vented hood... What is the result? your intercooler gets air LAST... after the radiator, and after the condenser (if AC)." maybe im just drunk but isnt the whole point of a vmount that the rad and ic see air that has not passed through a heat exchanger besides the a/c.

There is some debate if pre turbo injection is good. To much may damage the compressor. If you do not use preturbo inj and you have the space/dont care about the weight you might as well run an ic and spray after the ic. it will cool the intake charge even more. It depends on how much $ you want to spend on meth, if you are willing to spend as much as it takes onmeth, run purely on meth or start spraying meth at extremely low boost levels. If youare cheap, run a good fmic setup and spray post ic.... it will greatly reduce your intake temps.

A note to a noob trying to do an engine swap: I started my car at the beginning of the summer. After spending countless hours working on it i can recommend a few things. 1. work with an engine you are familiar with or have easy access to a haynes or fsm. 2. if you are working on a car that you can get a fsm for read it before asking questions. 3. Take your budget and multiply it by 1.5 at least.... and you will come close to what it will eventually cost. 4. have a good job... or nice parents. 5. If you arent super familiar with cars go with the swap that will be the easiest for you to fix/diagnose problems... the tii.

good luck on your attempted swap

ps... if you give up pm me, i may want the block
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Old 09-07-07, 07:29 AM
  #39  
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Originally Posted by blwn rtr 89'
hey all aside from titanum tt being a total douchebag
I'm a douchebag?

School obviously isn't working unless you think that writing and sounding like a 12 year old on teh interznetz is da bombz yo

Styl - apparently we are having problems communicating. Yes if you inject pre-intercooler that would happen. But I'm wondering honestly what would happen if it was injected post intercooler vs no intercooler. Has this particular test been done?
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Old 09-07-07, 08:33 AM
  #40  
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Drop the idea of trying to build this car.
Stay in school.
Graduate.
Get a good paying job and THEN go build the car.
You've got your priorities all mixed up.

Don't be playing the hater card, cause reality has a nasty way of bitchslapping you...

</THREAD>


-Ted
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Old 09-07-07, 09:07 AM
  #41  
Crash Auto?Fix Auto.

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Originally Posted by TitaniumTT
Styl - apparently we are having problems communicating. Yes if you inject pre-intercooler that would happen. But I'm wondering honestly what would happen if it was injected post intercooler vs no intercooler. Has this particular test been done?
Not that I'm aware of. But the best way to find out the cooling capacity of methanol (aside from all the latent heat of vaporization and other numbers) is to simply pour some on your hand Do it on a hot, muggy, sticky-sweaty *** day too Its freakin' cold (due to ease of evaporation). Its alcohol.
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Old 09-07-07, 09:30 AM
  #42  
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im begining 2 think, ive beat this post dead, thanks for those who helped with my questions, but i will be attempting this enine swap still, and dont intend on selling any of the parts i bought, (unless i go ls1, heads, cam, procharger, engine avaiable pm me for more info or price), but id like 2 it keep an rx7, not lightweight japo-vette.
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Old 09-07-07, 09:55 AM
  #43  
Engine, Not Motor

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We're done here. Too much work to save the thread via editing and deleting. Special thanks to all those who ruined it.

Thread closed.
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