gusfd3s

PFC, my 'secondary' injectors are 3360cc :] what ignition are you using?

Viking War Hammer

iTrader: (8)

Stock TII ignition for now, but will switch to a MSD 6AL setup before it's tuned.

gusfd3s

one for each leading coil or are you running seq?

cant make up my mind, msd 6al, 7al-2? fc3000? crane? one for each leading since im runnig wastefire?

Viking War Hammer

iTrader: (8)

My old FD, put down a little over 600 whp.............. and all I had was one 6AL on the leading. I used the stock FD trailing coils but I used the stock TII leading coil.

That was on race gas though, we might need more ignition for E85 since we're trying to light more fluid.......

Erdin

What is your set up?

Viking War Hammer

iTrader: (8)

75mm turbo
E6K
E&J Throttlebody
J&W Lower Intake
Non Intercooled
8 1680 cc injectors

That's the basics

Erdin

that a nice set up, what about you gusfd3s.

gusfd3s

t78
xcessive lim
custom uim 80mm tb
streetport 3mm scr apex
pfc

rx72c

iTrader: (8)

thats the ****.
i wonder if the e85 will ever show up down here in aus.

gusfd3s

with 6x1680 injectors i now hit 55% inj duty at 15psi and aprox 500whp. still rich 10.5 afr and egt's 820-850C/1560F. Seeing 60-70 knock on vacuum!? at full load knock is going down to single digits.

Have to be some surrounding noice its picking up? tried 2 different sensors now.

Viking War Hammer

iTrader: (8)

maybe you've got a loose injector wobbling around

crispeed

I'm at--->
RPM--9200
Map--16.5psi
Inj duty--68.1%
Lam/AFR--0.750/11.0
No clue where the power is at presently though.

My opinion of the knock counts. The factory knock sensor is basically a noise sensor.



That's a datalog showing the differences between a proven and well respected knock control setup and the factory knock sensor on this particular application.
The middle graph shows the actual knock when it occurs and the bottom shows the factory noise sensor.

Viking War Hammer

iTrader: (8)

Do many of the hardcore tuners even tune off knock sensors ? I always see howard coleman mentioning it but I just don't see it. I've tried using the stock and I even bought a J&S back in 2001. I personally thought it was useless.

crispeed

Most smart tuners in the rotary world allready know that knock control does not work on a rotary because the damaging knock is not spark induced and retarding the timing will do nothing other than induce another set of problems more likely to cause knock.
The J&S Safeguard is probably one of the best stand alone knock detection devices in the world presently. When applied properly to a rotary application it can work wonders.
Anyway this in not the time and place.
No more thread jacking.

Viking War Hammer

iTrader: (8)

I'm don't have a problem with "jackin it". So, what would be the proper way to apply the J&S to a rotary ?

rofuz

don't think Gusfd3s have a problem with it either please elaborate crispeed

gusfd3s

UPDATE!

OK.

Boost set at 20psi! (retarded the timing a fair bit at 15psi to get rid of the damn knock i was getting, lost 15whp but knock is down to nothing)

boost pattern:
5000 5500 6000 6500 7000 7500 8000
20,0 20,0 19,28 19,00 18,8 18,8 18,8

As you see boost is falling off as revs go, i hit only 513rwhp at 7600rpm which is a big disappointment, i gained some nice down below though, whats causing this? where's my peak numbers? backpressure? how much power should the t78 be able to make?

its becoming a little monster.. its acually getting freaky on the road!! my smile was up to my ears on my way home

but i NEED MORE MORE MORE

200whp at 4400 instead of 4800.
Graph:


compared to v-power

Viking War Hammer

iTrader: (8)

I'd like to know why you didn't make more power too .......... ?

gusfd3s

Some data from the dyno

------------------------------------------------------------------------------------------------
15psi BTDC IGL: 17dgr 15dgr split (knock 30-50) 10.8 - 11.0 AFR EGT: 970C

RWHP: 505,59 RPM: 7565,578877 RWTORQUE (Nm): 469,268601


-------------------------------------------------------------------------------------------------
15psi BTDC IGL: 13dgr 8dgr split (knock 0 - 1) 10.5 - 10.8 AFR EGT:900c

RWHP: 482,8 RPM: 7612.490393 RWTORQUE (Nm): 445.364762


-------------------------------------------------------------------------------------------------
20psi BTDC IGL: 9dgr 8dgr split (knock 0-1) 10.5 - 10.8 AFR EGT 900c

RWHP (18.8psi @peak) : 513,66 RPM : 7598.279529 RWTORQUE (Nm): 474.689297


-------------------------------------------------------------------------------------------------

15psi 5500RPM: 323whp
20psi 5500RPM: 345whp

15psi 6000RPM: 357whp
19psi 6000RPM: 385whp

15psi 6500RPM: 401whp
19psi 6500RPM: 421whp



Too bad i had no time for more runs, i could probably advance the timing more.
Picked up 10rwhp just leaning it out to 11.0 afr instead of 10.5 in the earlier rpms.

still very conservative and taking it slow forward.

If you have any input feel free to share!

Gustav

crispeed

Ignition timing at 20psi is too low. There's something wrong in the setup.
What's the ignition timing throught the rpm map at 20psi?

gusfd3s

9dgr was actually where i started, unfortunately there was no more time to play. Where do you think i should end up?

Need to load the map from the car, don't have it here but i think i got 9dgr from 6000rpm and up. 1-2 more retard before that.

Viking War Hammer

iTrader: (8)

What kind of timing do you suggest at 20 lbs, ol' pops ?

ZAN_TUNING

iTrader: (1)

i usually run around 12 degrees leading @ 20psi... 9 seems pretty conservative but that's a safe start

Viking War Hammer

iTrader: (8)

On Ethanol ?

jantore

Ur dyno map looks quite uneven. Like the AF ratio is jumping abit up and down.

Im at 16 degreese timing at 1.2 bar and did 497rwhp with E85 and a AF ratio of 10.5. That was all we had time for due to a faulty filler neck on the radiator kept us bussy for a few hours to get it fixed.

Plan is to have it on the dyno again within 2 weeks. And bring the AF ratio up to about 11.5 and turn up the timing and reduce the split.

Now we also need to aim for as cool exhaust temps as we can get also. Below 850 degreece celcius would be nice.

But we will see.

JT