i put a camira throttle body on to match the camira computer, though i think i have created airflow issues, as the exit of the TB is a large round round opening and inlet manifold opening is a smaller oval, Im currently re-thinking, whether to change the TB over to something else, suggestions???

(i have the stock twin throat TB still though this looks TINY)

that dude in NZ (sorry mate strugling to remember name) had a stock one which has a larger single butterfly, which could be a better option... if i can get one..

or what else matches up?

the other option is to try to port the manifold as much as possible to suit the camira TB, mainly trying to remove the sharp edge to more of a trumpet shape,

hmmmm, what to do, suggestions?

just as an update, im also looking at getting an adjustable fuel pressure regulator to up the fuel pressure as injectors are maxing out at 4000rpm, is there any adjustable ones at wreckers???

would also like to open up exhaust...

suspecting turbo issues as boost control is illogical, i put a massive leak in the wastegate actuator lines (used a t-piece to vacuum line which is venting to atmosphere), yet boost is not increasing from 6psi

previously i put washer on to space out the actuator mounting, this decreased boost, but when i removed the washers, the boost did not increase again

i've tried a lot of boost control methods but none have been consistant yet, what sort of damage/problem could cause this behaviour??? considering there is no unusual noises, though i think it is coming on boost later than it used to

plan is to increase fuel pressure, do exhaust and throttle body all at same time for a final tune which fingers crossed will have her running like she should.... but thats possibly $1000 worth all up....so yeah... still planning and saving

just to complete the novel... put in some rectangle tubing across the back (basically between the rear seat belt mounting bolts), as mounting points for my harnesses, then using aluminium sheet to create a firewall i enclosed the back half, up to the bottom of the back window and down between the wheel arches, all siloconed in so i dont get the fumes from the fuel setup, and my fuel pump is securely mounted under the car instead of cable tied in the boot

will have to get photos...

see some of you blokes at the cruises, thanks
Michael

I made an adapter plate and run a VL/RB30 T/B for a while but was too sensitive , due to air flow 1/4 of the pedal = WOT

i don't know of any adjustable FPRs at wreckers - your best bet is to visit VPW's website and order a Malpassi 1.7:1 or so - these guys are tops and i have bought heaps off them at always the best prices.

re: boost issues - maybe your wastegate actuator is shagged the same way distributor vacuum advance mechanisms shag themselves sometimes.

i hope you welded some crush tube inside the RHS where your bolts run thru or you may find they'll pull thru in a hard accident - and trust me, wide washers fold real easy when RHS splits around mount holes...

If the wastegate actuator was shagged.......wouldn't the boost just keep rising?? If the diaphram was leaking..it would not open the waste gate thus boost would rise???

Maybe your exhaust is restricting the amount of boost created....restrictive exhausts have been used as crude boost control methods in ancient times...

As for the intake...its possible to get a better ratio than 1/4 throttle = WOT, by simply changing the diameter of the cable pulley?????

Does your car actually run above 4000 RPM...If not, your maxed out injectors may be causing your air fuel ratio to be going lean....causing your engine not to be producing enough heat to increase the boost level???(not sure how much sense this last point makes?

Could a restrictive air filter be causing your boost problems????

If your not running an effective air filter...maybe your compressor blade has degraded???

WOW!!!

thanks for the tips, read em, then went out and had a tinker

i noticed a small hole in my intercooler pipe to manifold flexi hose, so i pulled it off to notice a big gash in the under side of it, leaking away all my precious boost

replaced that, and she is running SWEETER than ever!!!

on 9psi, feels fast, near if not as fast as carby was, im inspired to go driving, i'm off for a hoon

cheers fellas

damn, i was gonna say an air leak between your turbos and inlet. if i was you i'd stop turfing money at it and start doing small cheap things to gain your power. port the manifold. largen your exhaust. get some injectors from another car (370cc CA18DET ) and fit them. then take it to get it tuned somewhere that knows what they are doing.

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My manifold is round and I dont have a stock TB its off god knows??? I am plaining to change mine to a RB20DE throttle body as the bolt holes match up.

Can you take a picture of your manifold inlet?

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I hope that answers your question and send me that stock throttle body!!!

alright now im over the whole having orgasm thing

im thinking of making up and adaptor to match the throttle body aswell, will be some interesting maching but a bit of fun,

and then theres the other stuff, exhaust fuel pressure

time to get to the drag and stuff though, as im happy enough to run it and see how it goes

What????? you are going to the drags!!!!!

give it a few weeks and i'll come with you. getting mine sorted slowly, can't wait to get to the drags again (and break something else )

we should organise another datto drag meet that no-one will show up to again

glad you are pumped mate!

Try using the CA20E throttle body. I have pictures in my photo section, check it out. It uses a very similar TB to the stock A series EFI one, but much larger butterflies. You should be able to use 280ZX turbo fuel injectors, they are the same style as the original A series injectors and should flow way more.