Wednesday, June 12, 2013 - 06:15 pm, by: Joshua White(Joshua_88)
If Neil is kind enough to get the dyno chart out of the glove box of my soarer and scan it in you can sus it out (as my car is in queanbeyan and i'm in central Qld lol). I agree with the out of puff consensus that everyone has. You can see it on the dyno where it just drops off. but i didn't have an intercooler instead i went the water/methanol injection path for cooling. running 2 sprays to try get better coverage. With that said if i could take back the money spent and choose all over again i would start with a better blower that would make efficient boost. does it matter that my blower wasn't exatly an m90 but a yella terra YT1500? pretty much the same thing
Wednesday, June 12, 2013 - 07:04 pm, by: Gavin Johnstone(Zedrift)
So it seems an M90 cant make much more than 9-10psi but what if the 1UZ could be modified and tuned to produce over 220rwkw with out boost and then added the M90 @ 8psi..
Wednesday, June 12, 2013 - 07:33 pm, by: Allan Langford(Allan)
Gavin Johnstone wrote on Wednesday, June 12, 2013 - 07:04 pm:
So it seems an M90 cant make much more than 9-10psi but what if the 1UZ could be modified and tuned to produce over 220rwkw with out boost and then added the M90 @ 8psi..
It's an airflow thing, you need X amount of air to make x amount of power, the M90 will always displace ~90ci of air for every turn if the motor breathes better you will just see less boost. you may get some gains but the costs of making the 1uz a better pump FAR FAR outweigh the costs of adding a bigger blower!
Wednesday, June 12, 2013 - 10:57 pm, by: Scott Vim(1uz1jz)
Yeah I was told if I stroked the 4.0 litre out to a larger displacement I would put out the same power and the charger would be running less boost. Water injection is key. My m90 barely makes 180rwkw. Need water injection.
Friday, June 14, 2013 - 12:34 pm, by: Daniel Clarke(Dieseltrain)
Back to blowers though ...
My mate done some work to his ls engine hoping with the harrop unit it would produce alot more power .. It only made 6 more rwkw , as the engine breathed so much better the boost dropped off , and it was on the biggest pulley .
Now he has to upgrade the blower . Wishing he bought the bigger unit in the first place .
Cheap now and upgrading later can workout alot more expensive in the long run .
Mind you , 460rwhp is not to sneeze at !!! Fun to drive
Friday, June 14, 2013 - 02:41 pm, by: Paul Drane(Paulwd)
nothing to sneeze about at all Daniel, sounds like it would be a blast to drive. Been in a Whipple powered Ford V8 with near 600 rwhp and that was so much fun, pity about his half shafts though, keeps breaking them, sorry should of said it has IRS. He was thinking of getting billet ones made, havent seen him for a while, so don't know if did or not.
Friday, June 14, 2013 - 06:15 pm, by: Joshua White(Joshua_88)
yeah my mate has a ve ss with the 6.0L ls2 and a single turbo running 10 psi and it made 510RwHp, 14 grand spent and big numbers.... makes my soarer look like a toy haha. Maybe it's about time the Maloo gets a blower or turbo
Friday, June 14, 2013 - 06:29 pm, by: Scott Vim(1uz1jz)
I've been in a few holdens with big power figures and they all seemed kind of boring, torquey but still not that impressive and look and feel cheap. Not a fan! One mate had 250rwkw with cams etc and feels less powerful then my chaser and the other has a charger on it and still is just too heavy of a car to be quick at least from a standing start.
Friday, June 14, 2013 - 09:43 pm, by: Daniel Clarke(Dieseltrain)
Ls& turbo = not boring either ...
Another good mate , twin turbo 408 cube ls VE 1027rwhp @ 22psi ... With the 6 speed manual on nangkangs ran low 11 @ 139mph on 10psi in low gears & 14 psi in the upper gears peddling alot . ( currently going full built Powerglide )
They make crazy power turbo'd .
Not everyone wants or needs a Billion hp though . If your happy with 300rwhp as a daily blown responsive v8 , that's damn cool too !
Sunday, June 30, 2013 - 05:32 pm, by: Oleg Akulshin(Sliqu3)
OK well I've hit a brick wall in my build.
So I put it all together, got the ISCV fabricated on 315cc injectors all is good. Go to start it runs pretty badly misfires and sounds like a tractor basically makes it sound like it runs on 4 cylinders. I checked everything, coils, igniters, spark plugs, wires everything is plugged in. Turn on my wide-band and it shows its running at 20 AFR! So I though ok maybe injectors are cactus... put stock injectors in... same thing... runs very lean and misfires! So today I though maybe i did screw it up and decided to put everything back to stock... Put the stock manifold on went to start... runs like new!!!! Only thing I can think off is cold start injector, since bullet manifold has no provision for it, I don't have it running in the supercharger... so maybe stock ecu thinks.. ohhh I should run less fuel through stock injectors because cold start is also injecting? But its running very bad... and I even let it warm up... didn't make it better...
Monday, July 01, 2013 - 08:17 pm, by: Joshua White(Joshua_88)
good to read you sorted that problem, I was going to say that I took mine for a drive and I didn't realise just how sudden a coil pack can go until mine went and bam 4 cylinders down haha
Thursday, July 04, 2013 - 11:59 am, by: Oleg Akulshin(Sliqu3)
Turns out I have a massive vac leak (I can close ISCV with my thumb and engine still idles) due to akward placement of silicon couplings. Going to look into fab-ing up a continuous pipe from S/C to throttle-body.
Wednesday, July 10, 2013 - 08:17 pm, by: Oleg Akulshin(Sliqu3)
Ok well had a solid pipe welded up and addressed number of vacuum leaks. Starts up at afr 14.7 but then slowly drifts towards 16-17. Hooked up a compressor to the manifold and started spraying soapy water... Discovered lots of bubbles between sc and top plate..... Looks like its another source of my vacuum leak (arghhhh just want the thing to work already) ... I just used silastic there or is proper gasket required? Also do people use silicon between top plate and manifold?