Here's something I'd like you guys to check out..
I'm collecting knowledge, ideas, and general thoughts.

https://www.rx7club.com/showthread.p...1&page=1&pp=15

you may have to copy/paste the link

Remember, I'm trying to hit 10's in the 1/4mile in an RX-7 for $5grand or less.. CANADIAN $.

Daryl

 

I think it sounds kinda iffy. Even if you went for a massive turbo set up, (motor would not last at all) I really doubt your could run consistant 10's... But as others have said your best bet for this would be to throw a massive pisston engine in there... If you threw in a 400 horse engine (around $3000 canadian here) and custom fabed alot of stuff with a 9" rear end and stuff you could get close. For 5000 your pushing it, Good luck tho.

 

I suggest you look at www.rotorworx.com.au who do a 10 second package for around can$18,000. Work out what you can do yourself and cost the components plus add in tires. I doubt $10,000 would be enough for what you are looking at.

However good luck and keep us informed.

 

thanks for the site info. looks good. They do really good work. I'm still very unsure of the powerplant I will use. I think anything I find soon that is in need of work, and is a good deal, will be made to work. I need to be able to build a 450hp monster on the cheap, and an automatic tranny would be best for the 1/4 time. I think its going to be very difficult, but the good thing is I know people who can find me valuable parts very cheap, and I can do all the work myself. Either a big engine, or a big turbo will be required for this. Nitrous was ruled out for the bet. Worst case scenario.. I end up owing him $5g's, and I have an 11second RX-7. This will not be an option however.

Daryl

 

thats quite the bet tho... I know I would never actually put down 5 grand on a bet like that...

 

either way, I don't lose.. thats the thing. HOWEVER.. he has 250g's in the bank.. so its a good argument from his side. what i SHOULD do, is borrow a 500hp engine from someone, mod the car enough to handle the power.. and then build a powerplant later.
we'll see
Daryl

 

Grassroots motorsports had an article a year or 2 back where the held a contest to see who could build a 11sec car for 2 grand or under. the fastest car in the contest i think was a miata and some other car (have to look for the issue) but if you do all the work yourself and i mean ALL the work yourself . not to mention pretty much have parts pretty much either donated to you or sold so cheap their almost considered stolen you might be able to get away with it . try finding a vehicle that weighs under 2000 lbs and gut it and stick a huge v8 with 150 shot and you might get there. i think it can be done , your just gonna have to be super resourceful and have a ton of hookups on parts. speed aint cheap .
good luck though and let us know how it goes i really want to see you get there .

jose

 

How About, No.

 

lol df. . i'm sure you probably know better than me, but lets see how cheap I can get
Daryl

 

I think you can do it for awhile. But it is going to take 500 horse small block try
http://www.grannysspeedshop.com/ and they have a V8 conversion. Go buy a Autozone short block or some other parts house reman get a good set of aluminum heads, cam, intake and a 250 shot of juice and you could do it. Need to find a good turbo 350 tranny. They say an 8" ford rearend will go in easily and it will last for a few passes. I don't know how good you are with building a legal cage but to go that fast it takes some decent dollars to make the car NHRA legal. But I think it is very possible but it will take all of your budget and you might think of expanding it a little for repairs. Go for it

 

I think it can be done with a rotary, I don't have time to look at parts and price things out right now, I might do it later.

 

for 5k you could probably run a super high 10 or low 11.

you will have to do alot of work yourself. nearly all of it.


you wont be able to have any glass in your car.
no interior.
nothing but you, 1 seat and your steering wheel.

2 ways to do it.
13b PP
4 port 13b carby turbo

your car will be a piece of **** but it will go fast for a while.

 

heh... never really thought the inside of a racecar looked very good... it's speed, not looks that matters.

The P-Port will definitely do it for you. I hate to say it, but I think a SB 327 bored out, and ported would be your best bet for EASY hp... put a Turbo 350 tranny with a shift kit in there, and a B&M shifter...

Assuming you want this car as a race car only, yank out all the headlights, motors, use one of the headlight assys for cold air intake, yank out dash and wiring throughout the whole car.

I think this is do-able.

 

I checked out an article in an Aussie magazine 'Fast Fours' on a street set up1984 RX-7.

It had a ported and dowelled s4 engine with a T04/66 turbo, a Miatra turbo box and Hilux diff.

It did a 10.40 second 1/4 at 137mph. To do this it had 518 hp at the wheels on a Dyno Dynamics dyno. That is is equal to 606 rwhp on a US Dynojet. The car was in road going trim with slicks so stripped out a 10 second pass would have been possible.

The car is registered as Frekenu and is on the Rotorworx website. another to look at is the Hitman website for AJC13B[?] who used to post on this forum until selling the car last year.

The evidence is a road legal car on slicks can do low 10 passes. All you need to do is find a way of doing it cheaply to win the bet.

In Australia if you can't hit 11 seconds for the 1/4 in your Gen 1 street RX-7 you are considered slow.

 

I'd go with a used ported TII motor, TII trans, a big turbo, 3.5" straight pipe, weber 50 carb, slicks, and strip the car as much as possible. It would be a little easier if you didn't have a GSL-SE, but I guess it just means you have more **** to strip off the car.

Hopefully you have some welding and fabrication skills. You could save a lot of money that way. Make your own carb hat, intake manifold, exhaust, exhaust manifold...

 

coldy13- why go carby on an existing efi engine?

Will a s4 turbo box and diff stand 600+hp? A cheap alternative is a Supra/Hilux set-up.

 

I think it is time for you to go Datsun 510 hunting... Heh.

Datsun 510 in terrible conditon can't be much more that $1,500. You can get a Chevy 350 crate motor for a couple grand. Then, throw some exhaust, cams, and gut the interior.

I doubt you'd have money to tub it, narrow it, all that jazz. Maybe find a 9"er in a junkyard or something and slap some stickies on either side of it.

I know of a guy who has a tubbed Datsun 1200 that he is dropping a SP 13B-REW into; shooting for 450whp. I watched him launch it before it was tubbed with a stock-internalled 12A and Holley in it, and he roasted the tires through 1st and 2nd. He swears that he will never run it on a drag strip because he wants to take as much money from little kids as possible. Heh. I think he is just scared to know what the car will actually run.

 

fitzwarryne, I'm curious to know more about this hilux diff. It was a major concern of mine having a rear end that will stand up to the power, especially the launch.. I am going to get a GS or a base model.. strip it right down.. then from there.. i can spend $5g;s on it. The $5g's doesnt have to include the cost of the car. This means I can kind of cheat a bit . The car could accidentally have parts needed on it, like a diff swap, etc.. or slicks.. etc.
Daryl
We will see how this progresses. Keep bringing on the ideas, they will help.

 

The Toyota Hilux is a light truck used by many tradesmen. Its a relatively cheap vehicle but as a workhorse its unbeatable. There must be a US equivalent. Details are on www.toyota.com.au, second hand diffs are always on sale to rotary people, for example go on the for sale section of www.ausrotary.com. Most of the very quick RX enthusiasts use them as they are readily available and unbreakable even with 600hp going through.

 

what years do you commonly swap the diff from the hilux?

 

Will ask thse local expert but it cant be recent as most are advertised for aus$100-250.

 

Stock 93 13brew and transmission can be found for $1200-2000 why the 93 motor because it comes with hardned stationary gears, bearings are better, oil system is 100psi+ stock. That would make it a reliable motor as far as stock motors are concerned and the ports are the largest stock besides the 20b and 13bre motors. Get rid of all the fuel injection and turbo stuff and get a holley intake for 13brew about $400 and get a NOS system for about $500 headers for around $200. Run Ford 8.8 rearend. 2 MSD 6AL's for around $600. There's more to it than that but you can get into high nines with this setup in an FB rx7 for less than $5000 if you do all the work yourself. Shoot 150shot of NOS it's guaranteed to hit 10's if you have the ***** to drive it. Set the rev limiter to 10500rpms launch with the NOS on and hold on. On slicks you will be seeing nothing but blue sky infront of you until come down. I'm tired of post like these try it and comeback and tell us if you do it.

 

As I posted in the cdn forum:

Because I get to keep the mods that I get if I make it into the 10's.. I want it to be something I can SLAP together in a GS.. STRIPPED RIGHT DOWN.. and then later on transfer the somewhat reasonable drivetrain into the SE. (otherwise why bother).

I am going to have to get a diff swap. This will be required. The AUS guys say use a Toyota Hilux diff. What model truck that converts to in canada, I'm not sure. I will find this out.
I'm a huge rotary fan, but i'm not sure that it can be done for under $5g's this way. However, I've also been interested in having a 5.0L 302 Fuel Injected engine w/ 88+ World Class Borg/Warner T-5. I like the 302's capability, and it is light. Granny's speed shop has kits to mount this up. Working on a 302 is easy. They also have a lot of potential.
One thing a few of you guys are mis reading, is that one of the specifications for the bet are that I cannot use NITROUS OXIDE.
So that leaves a few things for sure... I will clear them up again.. so that any tips/ideas do not conflict with what I have going.

1).. No N2O.
2).. $5g's or less.. *CDN*
3).. Base model FB or SA. STRIPPED RIGHT DOWN.
4).. Diff swap.. (hilux, ford 9".. etc)
5).. 10.99 or less in the 1/4mile.
Daryl

I have quite a few professional drag racing friends.. and they will help me through it.
Kevin Therres.. (eatmore racing funny car) is from my home town, and I regularly used to talk to him about his 2600hp Hemi funny car.. (runs a Best ET of 5.98).

 

85 gs base model = 700
exhaust/midpipe/downpipe = 320
turbo/exhaust manifold =450
wastegate= 200
intercooler=200
intake manifold for drawthrough setup=350
bad *** carb=600
tokico's/eibachs=600
axle/driveshaft/tranny=5-600

optional seals depnding on compression=182 (http://www.rotaryaviation.com/3_mm_apex_seals.htm)
thats like 4100 bucks so that leaves 900 to cover the little ****

 

actually use that 900 for sealing the **** out of the engine or lighten the flywheel...or both