114 replies to this topic

[BBQ]

cal-a-kid said:

I pose the question to everyone... "how would you go about building your ultimate rb, if you had enough funds to buy some of the top name brands and what combination would you go for?"

Dean

26/30 for sure..... Wouldn't even think about going 25/30

[gtp_vlbt1]

my zed runs a AFR of 10:1 atm ,

[david kriedeman]

Thanks for the comments guys.
As far as my typing goes, i'm pretty new to it.
THANKS FOR THE HINT "HIT THE ENTER KEY".
This is much better. I can really HOOK IN with my 1 finger SPEED TYPING now, i'm up to half a word a minute now.
FULLY SMOKIN.
As for my mate WANK...., ooops i mean WARRICK, he neglected to mention how often he used to come and ask for insight on problems he had with his car.
As usual i would stop what i was doing at the time to listen to his issues, followed by easy to follow instructions for him to check to try and solve his problems.
Anyone who knows me would agree i will do anything to help people out.
PURELY OUT OF THE PASSION I HAVE FOR WHAT I DO.
But what "SOME" people dont consider is that i make my living out of this work.
I dont mind helping out in small doses, but when it becomes repetitive i must put a stop to it. ESPECIALLY WHEN AT THE TIME MY BOSS WAS THERE ON MORE THAN 1 OCCASSION.
So in our mates eyes me helping him for free warrants BAGGING me out, because i had to become uninterested. SORRY, for being such an arsehole.
WHAT WAZ & SIKLUX put on this sight was read by alot of people,whom are friends of mine as well as customers.
They couldn't understand what they were getting at. Considering they KNOW who i am as a person. And how much i do for people to help them.
It's not uncommon for me to work all night without sleep to get a car finished of for a show or drag meet etc.
Fair call some of my cars arent finished on time,therefore not turning up,or turning up unfinished.
But people must be made AWARE of the fact that i work on my own, i do everything myself.
From the engine building,the wiring of EFI system, fuel systems, all electronics, the braided lines, and in the case of HUBBARDS R33 all of the STAINLESS pipe work on the turbo, fuel system etc. THIS TYPE OF WORK IS VERY TIME CONSUMING.
Not only doing the actual job itself, but also the foundation work that goes in to such projects,the planning, how will i make this work, how will i make that fit in there etc.
Just an example, i HONESTLY put in well over 200 hrs on SIMON'S R33, JUST IN RELATION TO THE ENGINE ITSELF.
I leave no stone unturned, you simply cant when building cars,engines what have you,for PAYING CUSTOMERS.
As for my 2 mates well, everyones entitled to there own opinion,this i dont have a problem with.
However when it starts to involve personal comments such as, RIP OFF, STRING OF BANK RUPT BUISNESSES, it all goes beyond "OWN OPINION"
ESPECIALLY WHEN IT'S ON THE NET FOR ALL TO VIEW.
IN SAYING THAT WARRICK, GO ON LINE TO THE BANKRUPT SIGHT AND SURCH FOR ME OR THESE BUISNESSES. THEN COME SEE ME.
I have lived here in CAIRNS my whole life.
I know and am known by LOTS of people.
PEOPLE WHO KNOW ME KNOW WHAT WAS POSTED WAS CRAP, the unfair part about it is those who DONT, will only know what was posted on the net.
And MR. "SIK-LUX" YOU COME VISIT ME TO. I AM VERY INTERESTED TO FIND OUT WHO YOUR FRIEND IS THAT I SOLD AN AUTRONIC TO AND RIPPED OFF!
CONCE A PRICK, YOUR COMMENT WAS
HOPE THAT BOXING MAN ON YOUR POST I SAW YESTERDAY WILL HELP YOU.
I started playing with and modifying cars and engines when i was 15.
I started my apprentieship with BROADLEY FORD 1986 after year 12.
I have 20 YEARS OF EXPERIENCE AS A MECHANIC.
I "DO NOT" KNOW EVERYTHING AND NEVER WILL.
ONE THING I CAN SAY IS I HAVE DONE "ALOT" OF THINGS TO "ALOT" OF DIFFERENT CARS.
"YOU NEVER STOP LEARNING, UNTIL YOU DIE"
There will be a day when i see my 2 friends, have the GUTS to tell me to my face what you pair put on the net.
AS FAR AS THIS TOPIC IS CONCERNED, ALL'S GOOD.
I NEEDED TO HAVE MY SAY, IT'S ONLY FAIR.
WE SHOULD ALL TRY TO KEEP THESE TYPES OF ISSUES OFF HERE, THIS IS A SIGHT FOR TRUE DIE HARD CAR ENTHUSIESTS, NOT SHIT STIRRERS.
ANYONE WISHING TO POST SUCH SLANDER, SHOULD SERIOUSLY LOOK AT THE "PRIVACEY ACT".
WHICH I MUST ADD THESE 2 "BREACHED" BIG TIME.
YES IAN is correct, we used the 25 head as it was part of the old engine.
As far as engines max safe RPM goes i have no problem with turning the engine to 8000rpm. The engine WILL take this ABUSE. 8000rpm & 35psi boost is purely a DRAG or DYNO EVENT only set up. BELIEVE ME THIS THING IS A HAND FULL TO TRY AND DRIVE ON THE STREET EVEN HALF TUNED AT 18 PSI. TRY DOING 170KMS/HR IN 4TH COG,FLOOR IT AND GO INSTANTLY INTO TYREFRYING FISHTAILS, VERY UNNERVING.
Those who dont believe me ask SIMON to take you for a run.
NOT FOR THE FAINT HEARTED.
The reason for the 8600rpm reading was an over rev, on the rev limiters behalf.
Was running 2 stage rev limit, 1st stage soft 7500, 2nd stage hard 8000rpm'
Need to set 1st stage & 2nd stage rev limit both HARD 8000rpm.
Reason for 8000rpm, ENGINE INTERNALS & BLOCK will take this, warranted NOT CONTINUAL, however engine power level is still climbing rapidly all the way to 8000rpm.
Who knows what RPM the engine will stop making power.
I certainly dont want to waist an engine to find out.
As far as timing 18 deg. THATS TOTAL =10 STATIC AT THE CRANK 8DEG. to the timing table
At idle it has 10deg. THEN everying timing load point to the 8000rpm limiter has 8deg. Thats why i say 18 total across the board.
Every engine is different, i have seen engines with8.5 : 1,running 30 psi, with 30 deg. in them. IT'S ALL ABOUT PHYSICS, and i think LUCK also.
STREET TUNE WILL BE 18psi, REV LIMIT MAYBE 6500 - 7000.
I WANT THIS THING TO HAVE SOME LIFE TO IT.
IT'S GOOD TO MAKE HORSEPOWER,EVEN BETTER IF IT LIVES AND MAKES HP.
SORRY GUYS FOR THE LONG POSTS, I LIKE TO MAKE SURE PEOPLE REALLY UNDERSTAND WHAT I HAVE TO SAY WHEN I MAKE THEM.
BY THE WAY, SIMON'S ENGINE HAS 8.2:1 STATIC COMP.
THATS CALCULATED BY ME WHEN I BUILT IT DOING A FULL CCing of the engine. CR = S.V +C.V /C.V, inc. piston to deck, headgasket cc's etc.
Using 1.2mm headgasket, compressed.

[david kriedeman]

SORRY I FORGOT TO ADD, RB30 WITH A 26 HEAD IS THE ULTIMATE COMBO.
AS MY FRIENDS AND CUSTOMERS KNOW MY FAVOURITE SAYING IS "HOLD THE *&%# FLAT"

[SLAPPA]

I have meet you befor Dave & you did help me with some things a few years back.
witch i was very happy with.
maybe 1 day you can help with some more work for me.

[Mr HKS]

Hi Dave,

Got a few Q's for you. - Not meaning to be rude or anything,

1) Simons car on the dyno, it had bad compressor surge?

2) It fills the oil catch can while doing dyno runs?

3) 2 stage rev limiter's, In most cases wouldn't 1 rev limiter work of a button or switch and the 2nd as per normal redline? inless its a 3step.

VWT66:

"its safe to say there is no other business in Cairns thats building engines to that level."

I Think thats a bit of an unfair comment.


Also:

10:1 is safe for a little while, but too rich for too long washes the bores and causes premature ring and bore wear.. and then you get blow by and oil that smells like petrol, fuel diluted oil, premature bearing wear... the downward spiral continues...


How longs a little while? Simon's car ran 10:1 on the dyno, just because old mate in the zed said he was running 10:1 afr's doesnt mean that it runs that on idle... runnning it that rich wont fill the sump with petrol. Maby a leaky injector can do this.

[david kriedeman]

BAD COMPRESSOR SURGE ?
Maybe i need to stand up front & listen and watch.
I certainly haven"t noticed it, if it does exist the problem is very easily rectified with MULTIPLE or LARGER BLOW OFF VALVES.
COMPRESSOR SURGE is created when the built up boost pressure CAN NOT be EVACUATED QUICKLY or INTIRELY, when the throttle blade or blades are closed.
THIS PHENONIMUM is evident on boosted runs or dyno pulls,when the throttle is released.
The TELL TALE, a FLUTTERING BLOW OFF VALVE.
Thanks for letting me know.
I"LL HAVE A LOOK AT THAT.
There is a chance that could be an issue, as we are still running the old V PORT BOV.
The V/PORT is 38mm, however the discharge slots on the side of the valve housing are a series of relatively small slots.
I may have to fit a second valve, or in MY OPINION a pair of 38 mm T/SMART PLUMB BACKS, would certainly do the job and SOUND "BLOODY LOVELY" when active.
The "OIL IN CATCH CAN" ""ISSUE"" is once again an unexpected issue.
I used a N1 GTR HIGH VOLUME OIL PUMP in this engine,as good oil pressure & flow are PARAMOUNT in this {and any engine for that matter}
The problem lies with the poor design of the OIL RETURN GALLERIES in the RB25DET CYL.HEAD.
When you next look at an RB25 DET ENGINE take note of the "GOLDISH COLORED " PIPE that lives on the passengers side of the cyl.head.
It is at the front LHS of the cyl.head bolted on with 2 10mm headed 6 mm threaded bolts, near NO.1 EXHAUST runner.
This pipe runs down the block to a fitting in the block, ""LOOKS EXACTLY THE SAME AS THE OIL RETURN FITTING IN AN RB30ET"".
This is a NISSAN ""OH MY GOD, WE HAVE A PROBLEM HERE, AFTERTHOUGHT"".
So i discovered.
SO with small oil return holes in both the block & the cyl.head, even with the "OH F#CK" we have a problem ere" afterthought oil return pipe, COUPLED with a HIGH "VOLUME" OIL PUMP,AMPLIFIES THE OIL SCAVENGING issue the engine has to start with.
The rocker covers are also quite small internally as far as volume is concerned.
What is happening is the rtop end of the engine is receiving more oil than it can return back to the sump where it's most wanted.
The RB25DET has oil restrictors in the oil passages in the block also "standard" to help with this trait.
The RB30 BLOCK "DOES NOT" have the cyl.head return oil pipe fitting in the front of the block.
When i built this engine i merged the oil return for the turbo & cyl.head oil return together, 3/4" I.D. return hose.
MAX. OIL PRESSURE IS ACCIEVED AT AROUND 2500 RPM IN THIS ENGINE, HOWEVER FLOW IS GOVERNED BY RPM.
AT REVS the oil pump pushes that much extra flow it starts to really have problems evacuating it back to the sump, the rocker covers fill with oil.
this oil is return to the sump via oil returns in the head & block,as well as the return pipe,the 2 DASH 8 breather hoses that go from the rocker covers to the catch can get filled with oil,which inturn fills the relatively small catch can,filling it fairly rapidly.
I fitted up a return line from the catch can to the sump via a 1 way valve so that any blow by gas can not force it's way back up the return creating another issue.
The other reason this happens is the fact that the engine is much taller now,the bonnet wouldn't shut.
I had RON at PRO-ACTIVE ENGINEERING (WHICH I MUST ADD DOES F*CKING AWSOME WORK) modify the standard aluminium engine mounts so that the bonnet would shut.
The down fall is that the engine sits down slightly at the front,(NOSE DIVING IF YOU LIKE). The 2 breather pipes are situated at the front of the rocker covers, hence for the oil favours the front of the cyl.head.
When on the DYNO the engine is facing downward even more than normal,exadurating the problem even more.
I have seemed to have fixed this issue with what i have done as mentioned, HOWEVER, ME BEING ME,THATS STILL NOT GOOD ENOUGH, I WILL BE ADDING TO EACH ROCKER COVER REARWARD ANOTHER RETURN LINE FROM EACH COVER BACK TO A COMMON SEPERATE OIL RETURN TO THE SUMP, PURELY FOR REASSURANCE AND PIECE OF MIND.
Me putting a RAG around the CATCH CAN BREATHER when we put it on the DYNO at INGHAM was a"JUST IN CASE" thing.
You really DONT want an OIL DOWN EVER, ESPECIALLY WHEN DOING A DYNO PULL WITH CHERRY RED HOT EXHAUST COMPONENTS CLOSE BY,
NO ONE LIKES CAR FIRES IN THIS GAME.
As for 10:1 air/fuel, some like and choose this ratio but ONLY as a FULL LOAD,FULL BOOST TYPE setting,you are not running 10:1 everywhere.
Simon's ran 10:1 from around 9.5 - 18 psi as i hadnt mapped the ECU fuel curve on the DYNO past 9psi, the DYNO hold down straps saw to that.
I put in big no's knowing it would be safe.
BIG BUDGET PRO DRAG RACERS RUN THEIR AIR/FUELS AS LEAN AS 13:1, HELPS MAKE A SUPER CRISP AND RESPONSIVE ENGINE ALSO NETTING MORE HP, BUT THEY CAN AFFORD TO DO SO, THEY HAVE THE COIN FOR REBUILDS, THEIR ENGINE IN A SEASO N MAY ONLY DO 100KMS, THEN REBUILT FOR THE NEXT SEASON.
What IAN said about the 10:1 air fuel is correct.
In any ENGINE no matter what it is or who built it they all have BLOWBY.
YOU simply can not stop ""ALL"" COMBUSTED GASSES BYPASSING THE PISTON RINGS. IF YOU WORK OUT HOW TO YOU WILL BE A MULTI TRILLIONAIRE & TREATED AS A GOD IN THE MOTOR INDUSTRY.
When you rev your engine harder and run higher boost pressures you create more BLOWBY. This initself contminates the oil,when you run very rich mixtures you as mentioned,contaminate the oil,wash oil off the cyl. walls,consiquently burning oil also,helping create NASTEY,DETONATION CAUSING CARBON.
T he oil starts to break down & lose viscosity & all of it's protective qualities.
Pull the dipstick on a FAT TUNED car, SMELL the dipstick, normally smells like FUEL.
THAT'S THE FAT THAT GETS PAST THE RINGS,IN CYL.RINGS IN BORE WASHING.
IF YOU RUN FAT FUEL CURVES MAKE SURE YOUR CHANGING YOUR OIL MORE OFTEN THAN EVERY 5000KMS, MAKE SURE YOUR OIL IS """FULLY SYNTHETIC""

[david kriedeman]

FORGOT about the REV LIMITER, the 2 stage REV LIMITER IS totally adjustable REV LIMIT FEATURE in MICROTECH ECU's NO EXTERNAL SWITCHING REQUIRED.

[david kriedeman]

SLAPPER, sorry cant remember who you are, i,ll check out your profile if you have one, see if that rings any bells.
Over the years i have done that many cars it,s hard to remember everyone, i remember faces, but im a shit for remembering everyones name.
I'd be happy to help out.

[BBQ]

sinister said:

No matter how good you are there is always people who will talk negative crap about you, I think there is enogh proof in that Skyline to back up his work

The proof will be when the car can back up its claim with a Decent TIME and MPH down the 1/4, Generally allot of other guys from other forums ramble the same about how good their car is.. How much power it makes.. Until they run it down the strip and see how well it’s NOT going, then they get absolutely hammered for good reason.

One such scenario of this is recently a fellow from down south (won't mention names) claimed he had 500+ hp at the wheels In his R33 GTS-T, He got called a dyno queen and just about every other name you could think of, until eventually he ran it down the strip only managing a best of 12.6 @ 118mph, By any standard that’s slow for the power output, Basically proving the theory of a dyno queen setup.

So until the car actually runs down the strip and manages a decent TIME and MPH this would be considered 11’s and 120+ mph as a base line, I think all the critics will continue to hammer Simon about his car…

[mr-squiggle]

its not about how fast your car is either, its about how fast it can get to that speed.... its only 1/4 of a mile, dont have much time to do it

[mr-squiggle]

good call... i am an enthuseiest that is building an rb26/30 conversion, and all i am getting is shit!

[gtp_vlbt1]

my 300zx runs 10.1 : 1 AFR At WOT (for those that dont know Wide open throttle), i have done the work myself because i havent found a competant workshop to help me out, so i been getting the help frmo John Pellington @ Unique Autosports, before anyone has any crap to say about him or the business "he knows what hes doing look at his car" simple as that, the parts i have are supplied by him and from my other mate Simon tongue owner of TTZED performance, these guys know their shit, i never doubted them and the skys the limit, as for tuning the ecu i have is made by Hitec, this guy has spent 100's of hours making maps e.t.c for 300zx's and silvias, his main market is 300zx's

so my 10 : 1 afr is only a temporary thing as the car only moves out of the garage once every blue moon (pretty rarely),

as for david kriedeman, i have witnessed some of your handiwork, my comments are "pretty near on perfect" regardless of what ppl say about you and "bank rupt business" pfft dont take notice of f**kwits like this they are jealous and if you dont already know cairns is one place thats got a lot of shit talkers, (you ppl know who you are)

so mate do what you do and build some more ripper engines, its good to see someone at least competant and able to back their product up two thumbs up


you might remeber that Red and silver VLT what you did some work to back a few years ago (thats a good setup you did btw)

rezpect my brother, good luck with you in the future, i

[david kriedeman]

I AGREE, THIS IS A CAR ENTHUSIESTS SIGHT

[PH34R]

so has there been any progress, changes of plan etc ?