Yeah I knew a guy on this forum who did 13.9 with his N/A rx7... dont know if it was stand alone ECU but It was street ported with ported and matched intake manifolds just like how mine are...To ansewer someones ? if it can be done then YES definatly I knew the guy.. BUT it takes a streetport and more than likely a stand alone but dont quote me.. The guys name was something like CrxNrx7 or something...In fact

I cant say his name because he doesent like flamers but I will say this guy i buy parts from dynoed his street port withou a standalone ECU and got 200rwp. He WILL get up to 240 he assures me when he puts his car on the dyno with a standalone.

200rwp right now is enough to push an N/A into the 13s for sure but he is a very rare find and also spent thousands on the dyno already fine tuning these N/As with standalones and not.

For proof of what I actually seen , Ive seen an 87 N/A stripped with originall 160k miles on it get 14.3 with a standalone ECU...NO MAF sensor...just a silk stocking with a rock in it for a filter. That car was sick...

 

by the way the 87 had stock ports

 

hey dude thanks for the turbo.

 

you know, i wouldnt really be surprised to see that. why are all the AU NZ guys so hardcore with cars?


g'day mate.

 

I have not removed any metal from the structure of car

I am going to hit 13s with drag slicks.

I was hittin 15.30 @ 98 with only the primary TB working, no secondary airflow...That is impressive in its self.

I also found some worn parts that directly effects the power of the drivetrain.

 

So, other than 1 isolated instance (w/o a timeslip) no... it hasn't been done.

Well boys and girls, the bar is raised and sits at 13.999 first to make it, gets the prize...

SCHMIDDLES...

 

Muhahah, schmiddles is mine Probably not though, I dont plan on having my car finished until summer, probably July

 

No problem Jacob.

Dood I told you thier has been a guy on here that did do 13sec n/a in his 2nd gen FI to. Do you NEED TIME SLIPS ??? Its not like everyone just got done doing thier 13sec 1/4 mile. Thiers poeple who have done it and people who will do it later but why must someone throw down a slip right now. They have a life. I wouldnt like keep my timeslip for ever if I had done a 13sec time would you?

 

Actually, yeah. I tend to keep things like that. Let's me keep track of my progress.

 

yes but you WILL eventually get rid of it when your progress stops progressing or if you happen to move on to something else. Like a turbo or whatever it may be

 

My friend RJ hit 15.86 in his completely-bone-stock '87 rx7. He didn't even have boxmod done.

Anyways, in his new car he hits 14.8's all day with just an intake, exhaust, and headers. With a new custom mod that is in the works,he should be able to hit 13's. If not, it'll be damn near close.

 

new custom mod? there is a big difference between 14.8 and 13.9

 

15.3 @ 98 mph??????

 

Yes, Id like to know what this custom mod is that will shave a secong off your 1/4 time.. Not trying to be an ***, just very doubtful. A N/A FC could run high 15s stock. Shaving 2 seconds off that time is no easy task, and will most likely require at least a street port, and some weight reduction, as well as many bolt-ons.

 

mine ran a 15.0 - 14.9 a week ago until i blew my motor ( i still have a quest to beat my friends 14.6 time on stock ports)

 

Yeah, but you have timeslips gabe.....thats not fair to everyone else here

 

Is 13BPPNOS still around? I haven't seen or heard from him lately, and you'd think he'd be all over this one...

Ren

 

his car is COMPLETELY stripped..

 

Well, a buddy of mine, lechnoid, (his screen name on here) ran a 16.4 with a toasted clutch and nothing more than a punched cat. I forget what he ran trap speed wise, but that motor had 175K on it at the time and not a damn thing removed. Car had a/c, sunroof, and full interior. It also had such bad oil control rings that he nearly didn't pass tech because they thought he was leaking oil on the track. That motor is now dead and we'll be building another hybrid for it.

I think he still has his timeslip out of pure amazement. There are highly moded honduhs around here who dial in for 16.0's.

EDIT: His car was identical to mine in the begining, except I don't have a sun roof and I have a stock AL hood and he didn't. `86 base in both cases.

 

Take an 86-88 base, throw in a peripheral port 13B, add a true-dual exhaust, eliminate any uneccessary weight, and you should be there.

 

Well it's a bit different because practically no-one here would bother running a lard-*** FC without a turbo! Seriously, they're considered far too heavy. But there are plenty of BP (and the odd PP) powered 1st Gens, RX-2's, RX-3's, 323's, Starlets, etc. Anything really light and RWD basically. If you can't push a 800-900kg (1750-2000lb) car into the 13's with a BP something's very wrong!

 

People always exaggerate the amount of gains you get out of a street-port... On a 6-port engine they are pretty minimal... it surely will not take a second off your quarter mile... it probably wont even take .3 of a second offa your quarter mile time...

 

I'd have to disagree, but then again I have hogged out 4 port primaries.

Smoothing the port runner and opeing that up in the secondaries has to be worth at least half a second though. I removed so much material in mine that they almost didn't look like the same hole from the inlet side of the housing. They went from a little perfect circle with a cut out and all kinds of casting ridges, to a smooth expansion and flowing form which simply extended into space at its edges as the walls fell away at the port opening. (poetic huh?)

Port opening on the secondary side was probably increased maybe 20% but I know the flow had to have nearly doubled. (speculation not worthy of flamage)

The aux port openings have little room to work with. There is where I did more flow oriented smoothing rather than enlarging the opening as that would extent the powerband even further up the rpms and make for an unusable peak. (beyond the intentions of my engines design as it would then require a 2 piece e-shaft to keep from grenading at max power) Intake durration being too long was another concern as port velocity would suffer in the typical lower range that the aux ports are active.

Bottom line is that the biggest cam doesn't always net you the best power. Street porting is a very viable option for an engine that will idle normally, get decent gas mileage, and still put down healthy power.

 

damn, you all are hardcore. i need to fly down there sometime. too bad its on the other side of earth...

 

i agree. these cars are too big to be messing around with the naturally aspirated stuff. i had a Z32 300zx (non-TT) before i got my turboII, talk about a car that needs some forced induction...
like 3400 lbs and 200 hp at the wheels, and an auto transmission.