Tuesday, January 29, 2008 - 09:18 pm, by: Adam Chytra(Soarpra)
Boost set at 14 psi. At any higher boost, the motor doesn't make the power gains per psi to warrant trying to jam any more boost into it, mainly due to the duration and lift of the cams. She seems to be happy to cop this boost all day. 7500rpm rev limit. 363kw at the wheels. She's not the lag monster some may have thought!
Friday, February 01, 2008 - 06:19 am, by: Ben Creswick(Turbo4l)
The cars is all stock on the inside, no cams nothing!
Yes thats Con doing the tuning.
we think its not making the power when we up the boost because of the factory valve springs being too soft.They are starting to open up due to the pressure.
There is plans to build the engine and then it will see a lot more than 25 psi.
Friday, February 01, 2008 - 12:04 pm, by: Damian Ware(Frozenpod)
Ben, do you have any estimates as to how strong the stock internals are and how much boost a stock bottom end could handle reliably with upgraded valve springs and cams.
Friday, February 01, 2008 - 12:10 pm, by: Daniel Clarke(Dieseltrain)
I have read that the 95-95 model 1uZ's had lighter rods and pistons in them to help them rev a bit more freely, so these particualr year models are more prone to piston rod failure in forced induction applications.
Friday, February 01, 2008 - 09:12 pm, by: Adam Chytra(Soarpra)
We'll be doing ALL the motor in one hit with another block. Heads, cams, valves, pistons, rods etc.. the only thing we'll leave stock is the crank. The last thing we want to do is to do the heads properly, and then lunch them with the standard bottom end.
Saturday, February 02, 2008 - 07:11 am, by: Blake Gloyn(Blakenz)
Damien, there is a drag car here in NZ that has run a 1uz for several seasons. it has twin turbos. the internals are stock, but he replaced the big end bolts and head studs with uprated items,and modified the head to reduce compression,and also put in stronger valve springs( i think). this car runs 20 psi and its 9.7sec at 139mph in a mk3 supra suggests that it has between 700 and 800 hp. recently he had an injectors/ fuel rail fault that caused an entire bank of cylinders to melt the pistons. when he took the motor apart, the other 4 cylinders were absolutely mint,and he could hardly believe how well the motor had coped with all the racing.
Thursday, February 14, 2008 - 06:44 am, by: Ben Creswick(Turbo4l)
We are going try and set-up the 2 step launch control this weekend.we will also be setting up the electronic boost controller and the idle control valve.
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