88turbotime

Ok guys, I need your help.
I've thought about it for a long time now, but I've finally decided to add an exhaust system to my car (88 turbo II). Which fuel pump, injectors, etc. should I use to keep the engine from running lean with the added boost? I really dont want my engine to blow up! So what all do I need to keep my engine running safely and about how much do you think this stuff will cost?
Thanks,
Greg

Wizz

Search, I know its been covered many times.

With that said, a RB 3' turbo back will take you up to at least 10psi. You will hit fuel cut. I suggest a FCD or better yet rtekv1.7 with 720cc 2ndairies. Walbro 255 fuel pump. And you should port the wastegate. So lets add this up... $800 exhaust, $125 rtek1.7, $90 fuel pump, $220 2x720cc =$1235. Not including shipping.

Did I forget anything?

cloead

Well, you could subtract $800 from that price by not buying the rediculously expensive RB catback and either go custom 3" (cheap.. $100) or some of the other less expensive companies.

HeffBoost

Port the wategate, keep boost down = FREE.

mazda se

iTrader: (1)

where is the best place to get 720cc injectors?????

hondahater

iTrader: (2)

I'd just look around and find a set of 720's on the forum for about 150 to 160 for both. other wise you are going to spend 220x2 witch is way to ritch for my blood if they are cheaper else where. Really to tell you the truth if you can port the wastegate so you don't have any boost spikes/creep you can keep the boost around 8 to 10 with a boost controller and you really wouldn't need the larger injectors. Just get an fcd (forum 40-45 bucks) manual boost controller (ebay 15 bucks) port wastegate (free) rtek 1.5 chip (110 bucks) the rtek 1.5 does not require larger injectors and is good up to I believe 12 or so psi. go to www.pocketlogger.com for details. also you would be advised to get a walbro 255 pump (90 bucks ebay) and if you want to be extra carefull you can rewire your fuel pump to make sure correct voltage is getting to it (free just search) I think that about sums it up. So thats what.....260 bucks and you have very reliable mods. GOod luck

88turbotime

Thanks for all the help.
So it looks like I need 720cc secondaries and a walbro 255 pump, I have the fuel cut switch.
Do I need bigger primary injectors?
Hondahater-- Thanks for the link, I'll check that out.
Someone please tell me more about porting the wastegate.

88turbotime

OK i checked out that link, but will the 1.5 keep me from running lean with the stock injectors, or do I need to get the 1.7 and 720s?

alwayssideways

the how to has been posted a few times.. i suggest the one from NZconvertable. the best one ive seen . here is pics of mine

the first one is a little bigger than stock,, and the second one is after the NZ porting

https://www.rx7club.com/showthread.p...ting+wastegate

this is the link for the porting

88turbotime

Thanks man. You guys are a huge help. Now, where is the damn turbo on this thing? (I know, I'm a n00b)