Hypergear Turbochargers and High flow Services Development thread

[scotty nm35]

ditch the iridiums and get bcpr7es plugs.

Keep the iridiums and gap them to .6 is my suggestion. What heat range are they, 7's or 8's?

[dori34]

any tips on adjusting preload on actuator?

[scotty nm35]

any tips on adjusting preload on actuator?

I usually run around 5mm of preload, or slightly over half the width of the hole. Depending on the spring it will take a bit of effort to pull the actuator back over the wastegate pin. The more preload the less the wastegate will travel, so you may need to dial it back a little if the boost is rising higher up in the revs. (unless that's the boost curve you are going for.)

Don't lose the circlip.

[dori34]

found this video from Tao, great music choice

will run approx 3-4mm as advised by Tao. if i adjust actuator, will it affect the tune ?

my turbo 21u hiflow is getting fullboost by 4500~ which is very laggy.

me and toshi tested with no airbox cover on and it help response dramatically but no where near the 35-3700rpm it should be getting fullboost by.

current mods

480cc

21U hiflow

3" turboback jasma apexi superdunk

2,5" cooler

high pressure hypergear actuator @ 19-20psi

unopened rb25det s2 r33

Toshi suggested to run pod with EBC and it will help around 4000rpm but i want the 3500-3700 response that the 21U is supposed to make lol

didnt get change to run on dyno or complete 3rd and 4th gear runs as clutch slipped over 5000

[jay-rod]

Clutch wont be helping your boost curve

[Badgaz]

Who did the tune?

[Missileman]

Who did the tune?

By his post I would say... Toshi

[Badgaz]

Sweet then, wonder if the crank balancer has spun? Have you checked tdc?

[hypergear]

If car is sitting on 1st gear then do expect 20psi over 5000RPM, I would advise of a clutch change and have the car fully tuned before trouble shooting take places, then preload the actuator through actuator bracket if needs to be.

[dori34]

car booked in to do clutch next week, so will visit toshi in 2 weeks for final tune

[Blackkers]

Dude are you elvis? you bought my old turbo?

I had the 20 psi actuator installed with about 1-2mm negative preload on the actuator to bring boost down to about 17psi when i switched to 98. That killed response

Fit the black kinugawa actuator I gave you with about 5mm preload and you will get full boost around 3400rpm in 4th with max boost around 14-15 psi

[dori34]

yeap

i don't get 17psi, i hit 19-20 lol

perhaps my mechanic may of moved actuator slightly as he installed a circlip to replace your wire you used.

Will do, Cheers Tim!

tao, can you confirm? shouldn't the high pressure actuator have same repsonse>?

[Blackkers]

Ah shit. Well just switch to e85 and run 20psi

[hypergear]

Well, If Blackkers is getting good response using the same turbo then you should too. Just make sure the internal gate is shut and preloaded. and yes 20psi is lovely, baby it till it gets tuned, it should be all good .

[dori34]

thanks Tao,

just curious what psi is the non high pressure that you supply with the turbo?

[hypergear]

I usually slot the actuator bracket fitting holes, and that makes the actuator pre-loadable. Usually seeing around 15psi of boost once that is done.

[dori34]

Thanks for confirming Tao.

Does anyone want to swap your standard actuator for a high pressure one from 21U highflow?

[hypergear]

Some updates. This is result of a OP6 high flow that I've done for Unique Auto Sports in NSWs.

R33 GTST stock engine with usual bolton supporting mods, PFC, pump 98 fuel. Final result of 278rwkws @ 18psi:

And a prototype turbo for Jet_R31. its the biggest possible turbo that we can make that fits into a T3x turbine housing. Hopping to see 600rwkws on his built RB30ET engine.

[Adz2332]

what would you suggest for an rb20? looking for response and only around 225 to 250kws?

Prefer internal gate to keep it looking stock

[hypergear]

The SS15 high flow would work extremely well, Will be suited between 200~230rwkws region: