Jump to content
SAU Community

Recommended Posts

Sunoco...it made 420awkw at 22psi on BP98...we put the Sunoco in and it went backwards to 390 odd kw. Then i adjusted the timing and leaned it off (Sunoco is a slow burning fuel and likes it lean with lots of timing) and power started to climb again. Then once the correct plugs were fitted it really started to make the power it should have. Then a couple more psi of boost until we saw 450kw (600hp) at the treads.

A more experienced tuner may have gotten more power but considering my limited experience it was as far as i was confident of pushing it without hurting it.

Congrats on the figures, have to be happy with that out of a street registered/driven car :)

Interested to know what plugs you were running and what you changed to see the difference???

  • Replies 58
  • Created
  • Last Reply

Top Posters In This Topic

Have 2 say a special thanks to paul for all his time in helping me. He knows his shit. As well as glen from esp racing thanx heaps.

Yes its a animal to drive on the road. :happy:

We run vpower plugs

dirt can you post up bp98 tune as well because i want to see comparison of hks t04z with garrett t04z on same fuel

mine made 428rwkw on 24psi (garrett) and another has made 468rwkw on 25psi (garrett). both were standard stroke 2.6l's

is this a 2.6l?

dirt can you post up bp98 tune as well because i want to see comparison of hks t04z with garrett t04z on same fuel

mine made 428rwkw on 24psi (garrett) and another has made 468rwkw on 25psi (garrett). both were standard stroke 2.6l's

is this a 2.6l?

Were they run on the same dyno??

the plugs are NGK v-power coppers

Thats great but you stated "then once the correct plugs were fitted" im assuming you weren't running the v-power plugs at first and just curious as to why???

dirt can you post up bp98 tune as well because i want to see comparison of hks t04z with garrett t04z on same fuel

mine made 428rwkw on 24psi (garrett) and another has made 468rwkw on 25psi (garrett). both were standard stroke 2.6l's

is this a 2.6l?

my hks t04z has gone 585rwhp (440rwkw from my calculation) on 18psi on 98 pump fuel on a very very low reading dyno, another brand new dyno dynamics one i went on recently read 40hp more (520hp to 560hp) on lower boost tune, so i reckon it would of been a bit over 600rwhp on any other dyno.

Thats great but you stated "then once the correct plugs were fitted" im assuming you weren't running the v-power plugs at first and just curious as to why???

Dave still had the platinum street plugs he likes to run on pump in the car

platinum + race fuel = ignition breakdown

what sort of afr's do u tune for on race fuel Paul? and how much extra timing is usually able to be added safely ontop of the pump fuel timing? i dont want the timing numbers (unless u want to post them) just wondering how much extra can be added with race fuel?

what sort of afr's do u tune for on race fuel Paul? and how much extra timing is usually able to be added safely ontop of the pump fuel timing? i dont want the timing numbers (unless u want to post them) just wondering how much extra can be added with race fuel?

for fear of being flamed i care not to publicly post what AFR's and timing. Most people fail to understand how this fuel reacts compared to normal pump. You can run it a lot leaner and give it a lot more timing....more than what you would think. But each engine reacts differently to the increase... so there is no hard and fast rule of thumb. Just got to keep an eye on the exhaust temps and listen carefully to the engine.

if i posted the numbers the uneducated would think id lost my mind...lol

for fear of being flamed i care not to publicly post what AFR's and timing. Most people fail to understand how this fuel reacts compared to normal pump. You can run it a lot leaner and give it a lot more timing....more than what you would think. But each engine reacts differently to the increase... so there is no hard and fast rule of thumb. Just got to keep an eye on the exhaust temps and listen carefully to the engine.

if i posted the numbers the uneducated would think id lost my mind...lol

no worries, what sort of egt's are the safe limit to go up to? i run 6 egt probes (one in each runner) and wondering what the safe limit is temp wise?

no worries, what sort of egt's are the safe limit to go up to? i run 6 egt probes (one in each runner) and wondering what the safe limit is temp wise?

egt probes??

fancy pants :)

we do it by look and feel...lol...those overfuelling backfire flames can be nasty.

So you stick your hand up the exhaust and have a feel, Paul? :)

Nah i was in the car punching the numbers in...i nominated Glen from ESP racing to keep an eye on what was coming out the back. :)

egt probes??

fancy pants :)

we do it by look and feel...lol...those overfuelling backfire flames can be nasty.

yep, overkill maybe :)

when the last engine was destroyed i decided it was worth it, plus a knock detection setup and datalogger setup for afr's and egt's. The last repair kill was $4000 in parts and machine work, something i dont want happening anytime soon.

i tell you what the egt differences between cylinder is rather interesting, definately something worthwhile for pushing the limits of an engine.

Edited by unique1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Update 3: Hi all It's been a while. Quite a lot of things happened in the meantime, among other things the car is (almost) back together and ready to be started again. Things that I fixed or changed: Full turbo removal, fitting back the OEM turbo oil hardlines. Had to do quite a bit of research and parts shopping to get every last piece that I need and make it work with the GT2860 turbos, but it does work and is not hard to do. Proves that the previous owner(s) just did not want to. While I was there I set the preload for the wastegates to 0,9bar to hopefully make it easier for the tuner to hit the 370hp I need for the legal inspections that will follow later on. Boost can always go up if necessary. Fitted a AN10 line from the catch can to the intake hose to make the catchcan and hopefully the cam covers a slight vacuum to have less restrictive oil returns from the head and not have mud build up as harshly in the lines and catch can. Removed the entire front interior just shy of the dashboard itself to clean up some of the absolutely horrendous wiring, (hopefully) fix the bumpy tacho and put in LED bulbs while I was there. Also put in bulbs where there was none before, like the airbag one. I also used that chance to remove the LED rpm gauge on the steering column, which was also wired in absolute horror show fashion. Moved the 4in1 Prosport gauge from sitting in front of the OEM oil pressure gauge to the center console vents, I used a 3D printed vent piece to hold that gauge there. The HKB steering wheel boss was likely on incorrectly as I sometimes noticed the indicator reset being uneven for left vs. right. In the meantime also installed an airbag delete resistor, as one should. Installed Cube Speed premium short shifter. Feels pretty nice, hope it'll work great too when I actually get to drive. Also put on a fancy Dragon Ball shift knob, cause why not. My buddy was kind enough to weld the rust hole in the back, it was basically rusted through in the lowermost corner of the passenger side trunk area where the wheel arch, trunk panel and rear quarter all meet. Obviously there is still a lot of crustiness in various areas but as long as it's not rusted out I'll just treat and isolate the corrosion and pretend it's not there. Also had to put down a new ground wire for the rear subframe as the original one was BARELY there. Probably a bit controversial depending on who you ask about this... but I ended up just covering the crack in the side of the engine block, the one above the oil feed, with JB Weld. I used a generous amount and roughed up the whole area with a Dremel before, so I hope this will hold the coolant where it should be for the foreseeable future. Did a cam cover gasket job as the half moons were a bit leaky, and there too one could see the people who worked on this car before me were absolute tools. The same half moons were probably used like 3 times without even cleaning the old RTV off. Dremeled out the inside of the flange where the turbine housing mates onto the exhaust manifolds so the diameter matches, as the OEM exhaust manifolds are even narrower than the turbine housings as we all know. Even if this doesn't do much, I had them out anyways, so can't harm. Ideally one would port-match both the turbo and the manifold to the gasket size but I really didn't feel up to disassembling the turbine housings. Wrapped turbo outlet dumps in heat wrap band. Will do the frontpipe again as well as now the oil leak which promted me to tear apart half the engine in the first place is hopefully fixed. Fitted an ATI super damper to get rid of the worn old harmonic balancer. Surely one of the easiest and most worth to do mods. But torquing that ARP bolt to spec was a bitch without being able to lock the flywheel. Did some minor adjustments in the ECU tables to change some things I didn't like, like the launch control that was ALWAYS active. Treated rusty spots and surface corrosion on places I could get to and on many spots under the car, not pretty or ideal but good enough for now. Removed the N1 rear spats and the carbon surrounding for the tailpipe to put them back on with new adhesive as the old one was lifting in many spots, not pretty. Took out the passenger rear lamp housing... what do you know. Amateur work screwed me again here as they were glued in hard and removing it took a lot of force, so I broke one of the housing bolts off. And when removing the adhesive from the chassis the paint came right off too. Thankfully all the damaged area won't be visible later, but whoever did the very limited bodywork on this car needs to have their limbs chopped off piece by piece.   Quite a list if I do say so myself, but a lot of time was spent just discovering new shit that is wrong with the car and finding a solution or parts to fix it. My last problem that I now have the headache of dealing with is that the exhaust studs on the turbo outlets are M10x1.25 threaded, but the previous owner already put on regular M10 nuts so the threads are... weird. I only found this out the hard way. So now I will just try if I can in any way fit the front pipe regardless, if not I'll have to redo the studs with the turbos installed. Lesson learned for the future: Redo ALL studs you put your hands on, especially if they are old and the previous owners were inept maniacs. Thanks for reading if you did, will update when the engine runs again. Hope nothing breaks or leaks and I can do a test drive.
    • No those pads are DBA too  but they have colors too. I look at the and imo the green "street" are the best.
    • I’m not sure what happened I told them about sonic tunes free OTS tune and the next the I know .. I was booted..   To funny 
    • Yea - I mean I've seen my fuel pump which is decades old and uh, while I'm not saying this with real knowledge... but I sure get the ick at using anything in the fuel system that produced the state of that pump. Many years ago I went through multiple pumps (and strainers) before I dropped the tank to clean it out with extreme violence. I'm talking the car would do maybe 50km before coming to a halt, which resulted in me cleaning out the filter with some brake cleaner and going on my way. None of my stuff ever looked like what came out of your fuel tank. I don't think I'd be happy with it unless every single component was replaced (or at least checked/cleaned/confirmed to be clean here).
    • I'm not going to recommend an EBC pad. I don't like them. Just about anything else would suit me better. I've been using Intima pads for a while now.
×
×
  • Create New...