Maximum boost thread (93 oct > pump petrol/gasoline only!)

[ninesixtwo]

1.5l 4 cylinder, 500hp at 1.7bar and virtually no lag above 4000RPM with redline of 10200RPM. The turbo they use? Garrett journal bearing turbo from the Cosworth V6 F1 engine, circa 1986. Just shows you don't need billet wheels, dual ceramic ball bearings, pixie dust or any other magic... just proper wheel sizing, proper manifold, and proper engine management (that engine runs life racing ECU with DBW).

[Mitchocalypse]

Originally Posted by ninesixtwo

1.5l 4 cylinder, 500hp at 1.7bar and virtually no lag above 4000RPM with redline of 10200RPM. The turbo they use? Garrett journal bearing turbo from the Cosworth V6 F1 engine, circa 1986. Just shows you don't need billet wheels, dual ceramic ball bearings, pixie dust or any other magic... just proper wheel sizing, proper manifold, and proper engine management (that engine runs life racing ECU with DBW).

Says the guy with a 3000 dollar turbo

Also, i noticed you're in calgary..
this forum seems to be three quarters south-eastern states and a quarter alberta. And Rice.

[RICE RACING]

double post cuuuuuuuuuuuunts

[RICE RACING]

They are a really good turbo.
This power in a full weight FD (1300kg as run) and stock gearbox (true road car) does
9.9's @ 146mph on ~ 29psi boost. (as per engine dyno test) 770bhp @ 8500rpm and well over 20psi boost at 4500rpm!

[Mitchocalypse]

Didn't know which thread to post this in but this seems like a good fit.

RICE, a while ago I found you post this and i saved it because I saw the obvious value in it:

The absolute ideal is gasoline main fuel, water/methanol in 50/50 ratio and injected at 40% to 25% of main fuel flow *BY MASS!!!*, it will make power on all set ups, be consistent, not rape any parts be it in your injection system or your engine.

Is this true for ALL engines, (boosted / N/A .. carb'd?).

And the 25% - 40% value.. How did you come up with that? Experimentally or is there some math behind it?

[RICE RACING]

Originally Posted by Mitchocalypse

Didn't know which thread to post this in but this seems like a good fit.

RICE, a while ago I found you post this and i saved it because I saw the obvious value in it:



Is this true for ALL engines, (boosted / N/A .. carb'd?).

And the 25% - 40% value.. How did you come up with that? Experimentally or is there some math behind it?

Firstly I am no Oracle, or self professed guru on the topic my 'knowledge' comes from a balance of 20 years readings/research on the subject (pre internet !), every 'paper' published, some not, face to face interviews with smarter people than me, non academic research findings from true pioneers (which I give credit too in my Aquamist thread) and a host of other sources that are not note worthy to mention on their own but all contribute.

Finally I then prove all of this myself before I state it as Fact V's Fiction

That above recommendation you kept is my own experience that backs up my own research and that of others in this field for forced induction set up. NA I can not comment, in all of my years I have done little on that as 1) it never interested me 2) NA is gay!

The only caveat I will say in regards to what I have given and you have saved, like I say in my Aquamist 'rant' lol I only give out information that is a couple of years behind what I currently do, I am not a free service anymore like I used to be, as I found everyone who currently does this in rotary world ALL go off my old information, so I learned to keep my own IP to myself, until it is redundant to me and then I freely give that other stuff out. Needless to say my 'old' information to some people is all they need to know to be totally amazed at how good water injection is on a forced induction engine.

[RICE RACING]

bumpski

[speedjunkie]

I don't have any proof or anything but I've been running about 24psi on 91/93 pump gas with water injection (washer fluid actually) as a safety net, but I've been told I should still turn the boost down some lol.

[PSI]

Still only on 40psi boost but now with a larger BW turbo. As of last nights dyno session the car now has 640kw/858hp at the wheels vs the 740hp previously with the smaller turbo. Best trap speed with the smaller turbo was 158mph, 2400lb car. H pattern gearbox, 26x8 tyre, leaf sprung rear end.

I would have run up to 45psi on the dyno (map sensor limit) but the wastegate spring will only allow 40.5psi (280kpa). If the engine is still going when the season finishes I'll probably change w/g springs and see what it makes on 45psi, time permitting. I'm not holding out too much hope though, the engines done almost 2 seasons racing plus 2 powercruise events, dirt drags, and whatever else. I'm glad I didn't switch to E85 yet, pump petrol is starting to get real interesting now!

[RICE RACING]

Originally Posted by PSI

Still only on 40psi boost but now with a larger BW turbo. As of last nights dyno session the car now has 640kw/858hp at the wheels vs the 740hp previously with the smaller turbo. Best trap speed with the smaller turbo was 158mph, 2400lb car. H pattern gearbox, 26x8 tyre, leaf sprung rear end.

I would have run up to 45psi on the dyno (map sensor limit) but the wastegate spring will only allow 40.5psi (280kpa). If the engine is still going when the season finishes I'll probably change w/g springs and see what it makes on 45psi, time permitting. I'm not holding out too much hope though, the engines done almost 2 seasons racing plus 2 powercruise events, dirt drags, and whatever else. I'm glad I didn't switch to E85 yet, pump petrol is starting to get real interesting now!

Good stuff, and YES I have always wondered why the fuck people accept the total head fuck of E85 when I proved (and you are now) water injection over so many years.................. beyond me!

Are you still using your IGN-1A coils? I have been given some special ones to test by a well known high performance manufacturer, and in the interests of science I may just use them myself.

Which BW did you move up to?

Peter

[TitaniumTT]

Originally Posted by PSI

Still only on 40psi boost but now with a larger BW turbo. As of last nights dyno session the car now has 640kw/858hp at the wheels vs the 740hp previously with the smaller turbo. Best trap speed with the smaller turbo was 158mph, 2400lb car. H pattern gearbox, 26x8 tyre, leaf sprung rear end.

I would have run up to 45psi on the dyno (map sensor limit) but the wastegate spring will only allow 40.5psi (280kpa). If the engine is still going when the season finishes I'll probably change w/g springs and see what it makes on 45psi, time permitting. I'm not holding out too much hope though, the engines done almost 2 seasons racing plus 2 powercruise events, dirt drags, and whatever else. I'm glad I didn't switch to E85 yet, pump petrol is starting to get real interesting now!

That is just impressive as all get out. What ECU are you running and what size BW?

Originally Posted by RICE RACING

Good stuff, and YES I have always wondered why the fuck people accept the total head fuck of E85 when I proved (and you are now) water injection over so many years.................. beyond me!

But but but.... bdc?

Originally Posted by RICE RACING

Are you still using your IGN-1A coils? I have been given some special ones to test by a well known high performance manufacturer, and in the interests of science I may just use them myself.

Oh really? I FINALLY have in my possession the Bosch Motorsports Coils (I've actually been using them for a number of years now) along with the IGN-1A coils (running my RX8) and a set of factory D585 LS2 coils (thanks Glenn) Whenever the FC does make it onto the dyno after I get her tuned to about 12-14ish PSI I'm going to swap coils, adjust dwell and make a pull. Whichever coil makes the most power, is the setup that will stay on the car. I think it'll be between the IGN and the D585, and I have a feeling it will be the D585, although the IGN was designed around a 2-stroke Merc outboard soooooo, it should be interesting

[Fendamonky]

Originally Posted by PSI

Still only on 40psi boost but now with a larger BW turbo. As of last nights dyno session the car now has 640kw/858hp at the wheels vs the 740hp previously with the smaller turbo. Best trap speed with the smaller turbo was 158mph, 2400lb car. H pattern gearbox, 26x8 tyre, leaf sprung rear end.

I would have run up to 45psi on the dyno (map sensor limit) but the wastegate spring will only allow 40.5psi (280kpa). If the engine is still going when the season finishes I'll probably change w/g springs and see what it makes on 45psi, time permitting. I'm not holding out too much hope though, the engines done almost 2 seasons racing plus 2 powercruise events, dirt drags, and whatever else. I'm glad I didn't switch to E85 yet, pump petrol is starting to get real interesting now!

THIS is fucking insane!!

[PSI]

Same BW turbo as yours rice, but with a machined out 75mm cover and cast 80mm wheel, since we've got no room for the larger diam "race" cover (stock John Deere cover).

The IGN-1A's work well but I'm testing an ICE ignition again, out of curiosity.

Link G4RX ecu.

The car trapped 161mph today, 3mph more than it ever has. There will be more to come once we get a handle on the bigger turbo's power deliver characteristics + creep up on the tune/boost. It's really struggling off the line and in the first half of the track now.

[RICE RACING]

Give it some jandle, fuck yeah!

[Mazdabater]

Haha fuck he is never gonna live that line down! What a race

The Jandal Reference:

http://www.youtube.com/watch?v=hAFRS5r2g8E