I never wanted to do one of these "who would win" things but I'm curious sooo...

My friend picked up a '88 RX7 Turbo ll. The only thing I know for sure it has is an aftermarket downpipe and exhaust system. We had a short little run from about 20 to 50 in which I left him behind easily.

His car is not running very good right now and he's only boosting 7 lbs. As it is, he says it should be running low 14's high 13's, I'm a little skeptical about that. He says once he gets it running right he should be running 17 lbs and says it'll be in the 12's. I'm not to versed in the ways of the Wankel so anyone got any insight? rx7speed, little help here?

 

Oh come on, he only has 1.3 liters!!!

Ok just kidding

 

Sorry to say but I think he'll win once it gets tuned properly
I've give props were props are deserved. I read about a 4 rotor rotory engine that was put in a vette that made over 800hp and hauled ***

 

No way , I have seen a couple of those turbo II's in my day and the fastest one I saw ran a 14.5 and it had a couple of mods I think they run 15.0 stock , but I could be mistaken.and if he is running 17 lbs it has to be an upgraded turbo.

 

I **** hard

sorry...couldn't resist

 

now why would someone do that? that is about the dumbest thing i ever heard!

 

GM almost put one in the re STOCK from the factory

actually one prototype did make it


then some issue came about with the gas crutch and most people couldn't get the rotary to run exactly right so it never came about

 

stock it should be around a very low 15


the stock boost is only 6 pounds

so he has 7 eh

the exhuast and d/p what size? 2 1/2 or 3?

it should help him out quite a bit

have seen one guy only REAL mods (not counting spark plug wires and all those other minor mods) include an exhuast that was 2 1/2, TID (turbo inlet duct) which replaces the stock accordian pos that necks down and makes for bad air flow to a 2 1/2 inch unit all the way, and a little more fuel. he was running it down to the mid 14's or so

but if your talking 17 pounds of boost on the stock turbo I wouldn't count on him being that as fast as he should be
anther guy (local rx7 has a few members) was running 18 psi on the stock turbo... it worked but he blew the motor fairly quick. stock wastegate is inside the turbo and is small.. kept getting boost creep and finally said KABLOOOEY. too much heat that stock turbo built up at that boost

another guy once upon a time for the local rx7 was running 15 psi
put down about 280 at the wheels with a stock housing but upgraded internals. mods include jacoubs ignitions 3 inch single exhuast, TID, filter, fmic and he ran a 12.8 cutting 1.9 60' but yet spun through most of first also


another guy running same mods but a t-60 at 15 pounds is putting out 380hp at the wheels


thats the problem kinda need to know what turbo he is running


stock at 17 psi might put him at low 14's
but put some other turbo on there and it is a different story

 

He tells me everything is stock so I'm assuming stock turbo as well. The d/p looks like its 3in. the exhaust Y's out into a dual exhaust look with two mufflers. My friend says that the guy he bought it from ran 13.7 on 10psi. I'll see what else I can get out of him tonight.

 

hey RX7Speed i'm not busting the rotory motor but to put one in a vette would be a big pain in the ***. them things are way lighter and getting the drive height back right would be almost impossible let alone matching up a tranny for it.

i almost bought an 82 RX7 for my first car back in the late 80's. i always liked the older RX7 body style and they can be built fast let alone they handle pretty damn good!

 

I honestly don't know why someone would want to

but GM did put one in there vette once

just a concept

but they designed it to fit in there


just curious though what are you talking about with drivehight and tranny matching?

 

I think he means that since the vette's tranny is designed for chevy small block engines they'd have to do a few mods to make it work correctly and they might have to actually change springs because the rotary weighs about as much as a thirdgen's door, maybe less... or something.

 

Here it is...the Aerovette. First fitted with a rear mounted 4 rotor wankel, then a 400 smallblock. From the looks of it, I don't think they cared about how the trans bloted up.

 

Oh but if it was only that easy............

 

There was a prototype Corvette that was built with the 4 rotor engine. This car never came out. Although the car was built and did work. I have pictures of it in a magazine with the history of the Corvette in it. Theres a article on Vette's that didn't make it. The rotory car looked like a squared off late 70's stingray. It looked pretty good really. Better than most prototype cars do.

Chevy just decided that the rotory engine was not the way to go. I have no idea why though. It might be due to the lack of torque produced by the Wankel design. Or they may have had to many reliability issues with it. Who knows?

 

I raced an RX-7 turbo II at the track. Sounded like he had at least exhaust and intake. He went 14.7, but I actually beat him to the 60 ft. That was the run in my sig.

~Matt

 

I'm just goning to have to wait and see with this one. I took a ride in the RX7 earlier this week and it felt strong, at least as strong as my Iroc. He was boosting 10 psi. He ran another guy I know with an LS1 WS6 from 80 to 120 mph and they were pretty much door to door or so they tell me. That WS6 runs 13.4's at 106.

Matt, what was the trap speed on the Turbo ll you raced?

 

Well, actually, I was looking at the wrong slip Oops. The Turbo II went 14.385 at 100.2 mph. Once that turbo spooled he was gone. I had him to 60, and then he had almost a second on me at the 1/8th mile, and then 2 full seconds at the end

~Matt

 

Oh come on man, scared of a little rotary?! just bustin your chops man. But I gotta say, our cars run nearly identical times, and I routinely pull LS1's up to about 90. Highway runs are a little different. One night coming back from HRP I ran an LS1 Camaro on I-10 from about a 60 roll. We stayed side-by-side, neither of us gaining a single freakin inch, all the way up to about 120-130. I'd say if its already running bad, you'll definitely take him. Once he gets it running right and tuned, I think it will make for a very good race.

You still owe me a race though man!

 

Let me know when your gonna be back in town and we'll get that taken care of, don't you worry about that!

 

Thanksgiving and Christmas, I'm there. Just hope it's still running right, my dad's been driving it alot.

 

Oh man, nice run with the LS1 texasLT1. I can't wait until I get my LT1. How much was yours, and did you swap trannys or do you still have the 700R4/T-5?

~Matt

 

Thanks man. I know for a fact it had exhaust, and I'm going to guess it also had an intake lid, other than that, anyone's guess is as good as mine if it had anything else. It was a badass race to say the least.

I got my complete LT1 with accessories and harness/PCM for $1500 2 years ago. could probably find the same thing for around a grand now. I'm still running the stock '92 T-5. Hope to upgrade to the G-force T-5 this winter.

 

I'm surprised your T-5 holds up, eventhough it is a world class one. I definitely would blow my tranny up with an LT1 swap but I might end up just saving myself a lot of time and money and get the auto from an LT1.

~Matt

 

the only reason I've been able to make it last this long is I've been very careful driving it. I don't try to powershift, no high rpm clutch dumps, nothing like that. Its starting to show its wear though, the 1-2 and 3-4 synchros are definitely starting to go. But since its at home and my dad is driving it, it should last a while longer.