sweet.

 

SAE corrected numbers always come out to be less then actual for some reason. You should ask the dyno facility if they can convert it for you. For comparison purposes everyone typically uses SAE numbers. Congrats on the excellent numbers though, your dragstrip numbers confirm the dyno numbers. You have a freak of an FD and your SAE #'s will still be in the 380 range.

 

Could you post how you did it? I am going to have to stay stock for like two years (or near to it) and would love to be making those kinds of numbers.

 

why are you running 4x 850cc's instead of bigger secondaries? Are there any disadvantages to running the 1300cc's? Also, do you think you could hit the same numbers with Greddy 720cc's and the 1300's? I'm sure your idle would be a little better...not that you care probably! Do the 850cc's come on quicker or something? Less of a stumble?

Btw, what EXACTLY are people referring to when they say "secret sauce"? I'm assuming they're talking about porting? Or is it just the overall tuning?

And what's the deal Boostn7 with having .3sec better time W/O drag radials?!

 

Thats awesome !!!!

Kevin Wyum ran a 10.89 back in "96" on non seq. twins w/ stock motor running 2 additional 550's and I believe it was over the 500rwhp range.....

Brad

 

The only reason that Boostn7 is using those injectors is because that's all he had at the time, he's in the process of changing to 1200or1300 secondaries, he's MAXED out on those 850X4 injector setup, and the "secret sauce" has to do in the way the car was tuned, nothing special, it's all in the tuning. The PFC will idle the same with any injector, as long as it's no bigger than 1000cc in the primary location.

 

umm 500rwhp with twins with a 200 shot of N20. kevin is on here now. you can actually ask him if you want to know his username is Kevin T. Wyum i think

 

the secret sauce rikki usually talks about is removing the sequential stuff from the twins to make them flow better in nonseq

 

That was already discussed in this forum- https://www.rx7club.com/forum/showth...&pagenumber=1, it was already stated that the turbos were non-sequential.

 

Vosko,

Kevin never had had NOS if thats what you were refering to... But he did run those times ( 10.89 ET ) with that setup I mentioned.... Keep in mind he has a MoTec ecu that he knows how to tune and everything else you could imagine... Plus, he's not stupid and is light years ahead of most of us....

You should see what he has for a setup know Its amazing forsure

Brad

 

i know mr wyum ran 10.89 never doubted that but i have never heard of 500rwhp ? that is what i am doubting. i know he didn't run N20 either. anyway i have seen boostn7's car in person and i congratulate him thoroughly as he is running faster on stock engine and twins than i am with a ported engine and T78.... i'm still learning how to drive though lol

 

double post

 

wow, no change in idle up to 1kcc? Is there any other adverse affects or should we all run 850cc's for primaries if we have a PFC?

Btw, that is crazy someone running 500rwhp on stock twins and non ported engine...I'd like to see a video of that to hear how it sounds

 

Again...I'm running the 4x850cc because I figured they were going to be simply enough for the 300-350rwh I aimed for........remember, my daily driver.
Car has been going faster and faster and like RX794 mentioned I maxed them out on the dyno or else it would have made more power.
The 122mph trapspeed clearly tells me I'm making 400rwh or more !!!!! do the math...2940-2960lbs w/myself.
Next trip to the track will be with MT ET streets and 17-18psi of boost....it may happen and it may not....*but* if I do I will have alot more doubters.....but that's OK

Yes...Kevin did run 10.89 but 500rwh !!!!! don't think so.
His car was well tuned and much lighter then 2900lbs.
>what was Kevin's trap speed in the1/4??

Either way.....Kevin and Anthony and few others are the reason I'm chasing that 10sec slip......because of them I think its possible.

Ask me how much damage I have inflicted on my drivetrain ?????? part of the chase....broken parts

 

Recently I went from stock 550 primaries (on PFC) to top feed 720's using keith's primary rail and saw no difference in idle characteristics. I did the secondary rail from 1300's to 1600's at the same time and saw very little affect other than lower inj duties and it allowed me to architech the fuel system into a much better setup. (I always hated how that primary rail was nestled between the oil metering injectors)

Oh and sorry for the off topic post - this thread seemed to get fuzzy fast. Congrats on the 400rwhp- now give us the details!

Shawn

 

Wow, congrats bro. Those are awesome numbers that you should be very proud of. Just wondering as everyone else probably is: What mods do you have? Water injection? WHO BUILT THAT MONSTER???

 

Congrats again John. I know John very well and I know this car is more than capable of doing 10s easily.

John still has a lot more that he can do to the car!

Here is a comparison...

When I ran 11.1 I had 4.33 gears which helped me a lot. John has stock gears.

I was running higher boost, John is actually doing the same time with lower boost and a heavier car. I weighed 2910 w/driver.

For all the people that are skeptical to believe, here as an explanation.

on 15psi and a good launch, (a good launch means 1.6 ft times), a good driver, and a properly tuned FD, you will run 11.6-11.9

Josh stanley did it - 11.6 I believe
Rikki did it - 11.7 I believe
Other forum members ran 11s as well.

add gears to that and you will run 11.4 - 11.7 @117-119
You will improve your et by 1/10 or 2/10ths of a second easily.

Now, raise the boost from 15 to 17/18/19psi and you will run a low low 11.

John is already running these times without gears and with lower boost levels.

Another thing you have to consider is driving, he is a great driver. Most of the guys that run 11s in stock turbo FDs are good drivers with good tires.

You will win or lose a race at the starting line.

John is also cutting 1.6 ft times, he can also improve that time to 1.5's.

Do I think John will hit 10s easily? Definitley.

Anthony

 

I got this info from the drag times thread above....

All nonsequential stock twins except Wyum who had some sort of upgraded twins, all with a midpipe.

Kevin Wyum 11.13 125.00
AnthonyNYC 11.15 122.35
Brooks Weisblatt 11.21
Brian Dowling 11.42 120.60
ErnieT 11.69 119.00
Ryan (don't be a Rikki) 11.78 116.38
Redline 53 11.80 116.00

Sequential Twins, Midpipe
The DJ 11.30 118.00
Silver7 11.66 118.00
RTS3gen 11.77 116.77
Red_Line_53 11.80 116.00

 

Weren't Brooks and Dowling (same car) sequential?

 

What type of fuel?

 

I was at Moroso here in FL one night and saw Cameron from Pettit Racing also do a high 10 sec. run on factory twins. I can't remember the exact time but I believe it was in the 10.80's.

crispeed
87 RX-7 TII
9.204@150.47mph
2600lbs
un-tubbed

Travieso Racing
73 RX-3
10.57@124.97mph
2190lbs
un-tubbed
13B PP--- All Motor

 

Damn 10.8 on twins? thats bananas! Considering thier fully built drag car hasnt seen a 9 in a LLLOOOONNNGGG time. But hey thats South Florida boys for ya!

 

LT1RX7: for me still on pump gas (93-94 octane)

11.1 so far on ET streets....feel like ordering gears

 

Man, where does all your money come from? Do you guys work for the Treasurey?

 

my money ???? I just print it as I need it

by the way ....have less then 4k into mods