Ok I have an oppotunity to buy replacement jets that without further modification to ecu (standard) or anything else are claimed to increase boost from a standard 8,5 to 12 a 55hp gain. Seems too simple to be true - any else heard of this? BYTW cost is $30 for the jets plus shipping
Good results there. How do you know it was 55hp? did you get before and after dyno figures? were there any other changes aswell, like pod filter or exhaust work, etc? Either way, you've got to be happy with that! One great thing about turbo'd cars, power on tap!
I think they are claimed figs Benny... Please, don't pay $30 for boost jets, go to boc gas and buy various sized welding tips... If u have a boost gauge, just test them til u find some that give the desired boost levels...
its just a boost increase, so yeah, 50rwhp odd gain would be a approximate gain from 4-5 psi boost increase (rule of thumb being apprx 10rwhp per psi on our engines, stock turbos) so from stock to 14ish psi......
Nothing special about jets. I used a welding tip in the vacuum line in my last Z. Cost was about $1.00. Bought a few different sizes and started with the least restricted and got about 10psi, then the second size got about 12psi, and finally the last got me to 14psi...perfect. That worked for the next five years while I owned it. Only other thing needed was a couple of hose connectors from Supercheap (~$2) and the job was done in about 5 minutes. Best and cheapest upgrde you can do to a stock Z. Just make sure you don't over boost and get pinging. You will need an aftermarket boost gauge so that you can see high high you are boosting.
+1 when learning as a youngster I was always told rule of thumb and averages etc 10 hp per psi added. just as a real rough guide and all and that was to be considered the best you should expect. This being said to get 55 hp you need at least 5 psi more boost according to this basic rule. People this was told to me as a quick guestimation guide for dummies make from it what you will but I dont intend to try and back it up with any dyno charts or anything, I would like to know how accurate it is if anyone has evver done a basic boost /HP ratio on a dyno. I would suspect this could be a BHP not rwhp guide so could be even less improvement.
lol 30 dollars for two welding tips worth 2 cents each hehehehe oh dear haha time for at least a manual boost controller. turbotech manual boost controller from ebay works a treat even with the big boys bout 30 bucks
+2. But get a few different sizes. 1.0mm diameter jets can produce different boost results in different zeds. Don't take someone else's word for it. Put the largest size in first and test drive using a known-good (many are not) boost guage. You don't want to exceed ~14PSI on stock equipment (and that's assuming a fuel system that is 100% (many are not).
yep thanks guys saw the add and thought id get some feedback all good the turbosmart manual boost controller sounds like the way to go will go for 12 psi keep it safe car is stock
Nah mate turbo smart make great ebc's but when it comes to a mbc its a turbo TECH buy them off ebay for $30, I ran one for 12 months. Turbo Tech is the ball and spring type not a bleed valve and works great.
