Buddy has '88 N/A Rx7. It has Racing beat header, gutted cat and 3" catback with some fart can on the end. How would it stack up against my LB9 with mild ported heads, full exhaust, LT1 cam and 'verter with 3.45's?

You would beat him pretty good.

I wouldn't even use the term "stack up" with reference to your buddy's car.

lol...

you'll whomp him so bad he'll start crying

You will woop his butt. The N/A rotary is not fast at all. I think the engine is called a 13B. The only chance that guy has is to do a TII conversion or swap the engine entirely. BTW, the 88 RX7 is called a FC. The FD RX7 is from 93+ way different body lines.

Yah, I knew it was one or the other. He just bought an SAFC and hes going on about how it will give him more power. I tell him thats bull**** and it will only let you adjust fuel pressure and few other things. Am I right by saying this? Also, what do the T2's run stock/with exhaust?

You are wrong. SAFC stands for Super Air Flow Controller. It adjusts air to fuel ratio based on RPM. It WILL give him more power, but not anywhere near he's expecting.

Ok, fair enough.

The most he'll make as far as I would guess will be like 10-12 hp at the wheels, and that's only if he gets it dyno tuned. You'll still tear him up.

N/A's are a joke. And liek it was stated, this is an Fc RX7......IMO an FD RX7 looks 10x sexier and cleaner. Hell, Id love to have one myself....but Id need to figure out how those rotaries work....I only recently (last year or so) learned the details of a Ford Modular motor....

STOCK N/A might be a joke even while being N/A though they can make good power just depending on what you call streetable.

but out of the N/A 300hp isn't impossible just most won't go that far.

but stock at least on par with your TBI that you once had




steve383 a SAFC could help a decent amount being these cars are tuned rich from the factory.

Well I mean it's a budget build up and for now, that's all he is going to do besides a custom fab'd cold air intake setup. He asked me to tell you guys what he could do with that Safc? He knows all about them and all about that rich part from the factory but what would be the proper setting to gain the most? Like I've said before, everything is bone stock when it comes to the engine. Only thing changed would be the exhaust system. Thanks (from him)

Well, Ive personally never seen good power made N/A.....Theres quite a few Mazda oflk here locally but they all have Fc's and Fd's......all turbo'd might i add.

And as for my old TBI, yes it was slow. It took the 5-0 to wake me up from silly fantasies of 305's and fast in the same setence....they are oxymoron's

383: Your friend just needs to find the optimal air/fuel ratio to make the most power without leaning out too much. It's ths same concept as timing pretty much.

Oh c'mon now . You can make your 305 pretty darn fast without much cash. Dewey316 hit 13.9 with headers, gears, cam and tuning. Without the cam he went 14.5. Chances are that would work your 5.0

C'mon. Touching the 13s isn't fast...


Hell, my brick on 20s with no stall (2.3 60') ran 13.6

It is when you have a damn TBI.

be my guest....how many cars do I need to spot out...and is this on my old combo or new? Old ocmbo..lets say I was nipping 25th's heels UNTUNED......new combo.....I dont need the spray to walk into the 11's

but see I have something in my honda and my mazda that you will never have....










































TORQUE

For an LO3 with a few basics mods it is.

......new combo.....I dont need the spray to walk into the 11's

What new combo do you have to do 11's?

is

88 is a FC3S for the coupe and FC3C for the vert. THe 88 is a series 4 motor which is rated at 146 hp @ 7100 and 138 ft lbs @ 5000 +/-. I had a FC vert, and let me tell you. 0-60mph in 8.0 maybe even more. Light to light, you have no worries. If he wants to take it to the twisties, REFUSE IMMEDIATLY or you will be sorry. I have heard storries of FC's murdering porsches in the cornors.

He couldn't touch my car in the corners.

i think he could, ive driven some of those RX-7s specialy the 88 type model, they have some wicked moves in corners, but your right them things are **** for stop light to stop light.. another friend, yes this is me who is going to "get my *** kicked by the 96 eclipse" alright lets get passed that, but ive driven the RX-7's on open road they take about 12 miles (exaggerating) to get to 130... it took a while thats basicly what im saying. now my friend says his stock 85 RX says its gonna whip my LG4.. i know i know, LG4 YANK.. but mine has some spirt and a mine of its own.. i dont go around the town picking on cars because by no means is my car "fast" but hell it does a second gear scratch and its stock in the tranny, and rear end.. so it has some wierd charateristics. you'll only take him on a road track because you'll get on the open and catch him..

lol...

I've driven his car many times. It won't take my car in corners. We race around my neighborhood all the time as we have a few twisties we hit up. I own him through all of that. He can only take it at certain speed with new kuhmo rubber when I can take it faster with old, burnt away bfg's. I'm also upgrading my suspension even more as my pro kit is just sagging and the front struts are showing their age. He has a chamber kit, rims/tires, adj shocks. It's not stock vs stock, but regardless, I own him.

well woop his *** then.. hey do you think i should tear apart the LG4 and make it a 335 stroker??? or should i scrap it like i should and get a LS1??

Not the thread to be asking this in.

But if you want my 2 cents. The LS1 would be the better choice. More expensive but better. Hell, just be different and get the 335. I know of only one member with that, sweet setup if you ask me.

well i guess you can say you now know two, i just talked to a guy and hes sellin me a new 305 block for 75 bucks, that baby is going to the machine shop come tuesday

hp and torque number are right rpms are off though

the hp at 7100rpms is past the redline.
hp peak should be at 6500 rpms

toq peak should be at 3500rpms

your vert also weighs a ton more then any of the other cars.
prolly close to 3000lbs to my sports 2600lbs

Quick off topic reply here.

Don't waste your money on a 305. You end up paying more to get less than if you had started with a 350. If you paid $75 for a 305 block you got ripped off. Do some searches on 305 strokers.

Back to the thread.

It will be a massacre. He is toast. I had a buddy with one and the L03 whooped up on it. His was pretty ragged out, but still under 100,000 miles, as compared to 200+k on the 305.

Well the one 335 car I know of on here is decently fast (low 13s), but has a lot of time and money into it. It is an original idea, but not good for a budget build.