S4 stock port vs S5 street port.
 

I was at the Desoto motorsports park.

I was in line waiting my turn to run when this guy has a S5 rx7 wants to run me.

He says his car is ported with header, exhaust and custom intake piping and filter.

I told him I only have header, exhaust, custom ram air intake setup, some weight reductions.

We run and I destroy him the entire run. I was ahead from the begining. The race ended with me being about 10 or so cars ahead.

He ran a 15.2 and I got a 14.2

Then he tells me that my engine is ported also, he says he knows this because he has built rotaries for 10 years.. I told him he was wrong, it is original engine. He said I was a lier.

He was mad I blew his 7000 mile SP S5 engine, with a stock port 140,000 S4..lol

hahahahaha, +1

You ran a 14.2 with a 140k N/A motor?

I'm calling BS.

Just for the record thats spinning all of first gear and all of 2nd gear and a nice chirp outta 3rd. Street tires suck.

I could get a 13 something with some slicks.

bs

Gotta love those 1/8 mile kills!

I called bs on this guy awhile ago, and found some interesting information.

I think he weighs only 2000 pounds, the other guy might have full weight.

You make it sound like you have a full weight normal interior S4, of course people are going to call BS on you. I think the outcome is obvious if you're giving me what 40 whp and I'm giving you 800 lbs. It would be more impressive if it was "I destroyed a 2000 lb car with ported S5 engine with my 2000 lb stockport S4 engine." ;)

bs

shit, my car is completely gutted + ur mods + superlight weight rims and a whole bunch of other stuff and i cant run than time.

15.2 was my time
https://www.rx7club.com/kills-archive-229/73-vette-l82-vs-88-rx7-n-746650/

I Demand A Timeslip!

How much do you weigh?

I should have explained more.

This was a race against a new ported engine, with similar mods, vs a lighter version with over 140,000 on the engine, stock ports.

However the S5 had no A/C or P/S, was built and ported by Mazsport.

I guess the main problem most have is SP engines aren't great on a n/a. They may show nice numbers on dyno, but they are slower in almost every aspect.
Thats why he said I was ported also..He was upset he spent $5000 for his engine.

I want to see the timeslip and preferably a video.

i'm not gonna lie.....i dont know for sure....but there is nothing but a dash and one racing seat in my car.

no ac, still hav ps (for now)....bone stock my car wieghed 2656.

i'm guessing i'm between 2000 and 2300lbs.

i'll post on my weight when i weigh it.

You may be surprised when your weight is only 2300 with gas and you in it!

Junkyard weighed my car and it came in under 2000 lbs.

PS: you can cut off and remove alot more weight than what you have said.

i kno....and i have. thus being about 2000-2300lbs.
i've taken out so many things it would be ridiculous to list everything and i wouldnt be able to remember everything either.

So, is this guys bullshitting or not. I find it hard to believe an S4 motor with 140k on the odo can beat a broken-in rebuilt streetport s5 motor...

Are you bragging about running a moded car into the 14's?:hahaha:

it depends,

a 140k stock S4 motor power a brick on wheels would probably beat a broken-in streetported S5 motor powering a cruise ship.

Doing it without VDI or turbo isn't half-bad. Take the turbo out of the FD and see how fast it goes down the 1/4 mile.

The FD was never built to run NA so of course it would be pretty crappy without the turbos.

how the hell you are running 14.2? and especially on a s4 motor. are you sure you looking at the right times on your slip?


and if its true , come to bithlo(orlando speed world)

of course, now try to run that with a motor that probably doesn't make as much power as an FD without turbos. ;)

ever heard the term "brick on wheels"? The car might actually weigh as much as one brick.

yes, but it wont make a big difference

:scratch: Its all true.

Any full chassis, street legal. 2nd gen RX7, SP engines only, no power adders. Bring $1000 or the title.