turbo kit selection woes

[crioten]

This summer im going to turbo my 91 240, and im trying to figure out which route would be better for me, I have a pretty decent understanding of cars, but im not a pro at this, and im trying to learn and make my car better a the same time. I was wondering if you could help me decide which turbo kit I should get, remember im on a budget and im not trying to go way over.

Right now im looking at two kits, the new one from greddy and a local shop that is making one for my car. The only problem is that I am not sure what it will take to get the greddy kit to work on my car, that’s another question I have as well: what will it take for the greddy kit to run on my car?

The greddy kit has: ~$3,000-Cast manifold-Greddy 20g turbo-370cc injectors-Fuel rail-Pre-programmed e-manage-Airnix air intake system-All piping, couplings, oil lines, heat shields, and hardware

The Bi-State Customs kit has: $1,800-T3/T4 turbo-Tial wastegate-Log-style manifold-3” downpipe and gaskets-All oil fittings and lines-Hot pipe + maybe other pipes

Price is an important issue, I will be getting all the necessary gauges and other items, but what in the long run, after it is all up and running, will cost me less for the initial set-up?

Hopefully someone more knowledgeable can help me out with selecting the best one, and what is missing from both of these kits to make it run properly? Ill also be getting some kind of generic FMIC, any suggestions on size/brand for this?

Also, how much of a difference is there between the two turbos? How fast is the spool up/max hp does each have?

im looking for informed responses, not flaming ***holes...its not like i havent done any research...its just that i have some questions that i dont know yet

Thanks in advance-Glen

[Structure240sx]

i say go with the custom kit jsut do something to upgrade fuel and retard timing. for that price its not bad at all

[WDRacing]

Out of all the available turbo kits on the market right now, the Greddy would be my choice. You don't need anything additional to install the kit and have it run. The kit comes with everything. There have been a few people with tuning issues, but I believe it was a software version or more correctly stated, a mapping problem in the earlier Emanage system. There are a couple guys on here running the Emanage. They might choose to lend some info.

WD

[fiznat]

yeah, thats if you want the e-manage... the Bi-State doesnt offer any way to control your fuel OR timing, so right now you gotta go with the Greddy... but you could spend a little more on the Bi-State kit and get a S-AFC and a MSD BTM -- or a JWT ECU or, or, or... and it'll be just as good pretty much. As it is right now though, I think the greddy has the win by a mile.

[crioten]

ok thanks for the info guys. so all i have to do to make the greddy kit run on my car is just do some dyno tuning?

-glen

[huguetpj]

supposed to be plug and play

[crioten]

yeah, but thats just for the s14...what i want to know is for the s13

[TrunkMonkey]

i say go with the custom kit. imo, the only thing that makes the greddy more appealing is the emanage, and i wouldn't spend an extra $1200 just to have it.

with $1200 you can almost piece together an fmic and piping and upgrade your fuel system. the greddy has an internal wastegate and a mitsubishi turbo (booo). if you ever decide to upgrade and switch to an external wastegate, you'll need to modify (or replace) your manifold, buy and plumb your wastegate, and replace your downpipe...and you still don't have an intercooler. you'll spend alot more on the greddy in the long run than you will with the custom.

if you never plan on running more boost than the greddy kit will allow, then i say go for it. me, i'd go custom or save up a few more pennies for the f-max or nsport kits.

-demetrius

[fiznat]

yeah really- I would get the custom kit also and then add onto it. I only wanted to make the point that the custom "kit" isnt ready for the road just yet-- it needs a few more things... so cost comparisons arent really accurate untill you add in the extra stuff you need.

[mean green s14]

get a nsport kit if you have as13

[crioten]

i think ive decided to go with their custom kit, and was wondering what size intercooler i should get? what Core Length, Core Height, Core Thickness, and Inlet/Outlet Size would be good?

i plan on building the engine too, so id like to have it last somewhere around 350hp....

thanks-glen

[aleph1]

the standard is usually Skyline GTR size. 24"x12"x2.75"-3". with in/out ranging from 2"-2.5". Personally, I would prefer a slightly smaller FMIC more like around, 22"x10"x2.75"...but thats just me. These are all just the core sizes, not including endtanks. The former IC should be good to like 500-600hp, while my size would just be a bit less. Of course, it also depends on the core design itself...

[C-Kwik]

I agree with demcj about the mitsu turbo. Center bearings on mitsu turbos are rather small. Good care will allow it to have a decent life, but too much thrust loading will kill them much quicker than a Garrett turbo.

If Greddy ends up getting the CARB EO numbers, I'd probably give the Greddy kit a very close look. If the turbo fails, just have it rebuilt using Garrett parts.

[mean green s14]

nsport uses a 26x11x3 intercooler,and a t04b-r turbo,240whp

[alan-n]

I would go with the import-autoperformance kit ~ $3800 including shipping, or less. Intercooler core is a spearco I believe 18"x6.5"x3.5". Turbo is your flavor t3/t04e stage 5 wheel. Wastegate = DeltaII or Tial. Manifold is runners made of 8gauge mild steel (or roughly 3mm thick), also it is equal length.... comes with FMU, Aeromotive FPR or 255lph fuel pump..your choice on one to include in the kit. Kit spring is set for 6.5lbs of boost and runs like a raped ape.