DC2GSR808

Im wondering what is the best everything for the B18C1 motor. From the best turbo to the best exhaust, best air filter, and best internals. Im thinking about going 8.3 Compression Ratio. 300 - 400 hp street car.

turbomaniac

cp pistons and eagle rods are good value for money internals for 400hp.

a GTX3067R is also a good turbo for your application

as for exhasut a 3' is a good choice.

tial 38 is a good option for that power.

8.3 is too low CR, i would have gone for 9 -10

walbro 255 pump

stock cams and head are ok for that power you want..

and of course tuned ecu with at least 600cc injectors

NotARaCist

iTrader: (1)

There is no such thing as "best for everything". A best for drag turbo will be too big for road race courses, and WAY too big for autocross. 8.3 CR is way too low - stick with 10:1, if not a little higher. For 400, BARE minimum would be ID725's, but you would be better served with ID1000's.

Basically, you need to decide exactly what you want out of your car if you expect to get any real advice. There are no "stretchy pants" in the FI world.

DC2GSR808

What is the lowest CR do you think is good?

DC2GSR808

ID725? ID1000? Sorry im still new to boosting and compression ratios and stuff like that.

NotARaCist

iTrader: (1)

Why are you so insistent on lowering your compression ratio?

ID's are injectors, specifically injectors made by Injector Dynamics. One of the best options on the market right now. ID725's are 725cc/min injectors, ID1000's are 1000cc/min injectors.

DC2GSR808

My Friend told me to go 9.0:1 CR with GTX3071R

turbomaniac

9:1 is a very safe CR with no too menu hp loss

NotARaCist

iTrader: (1)

A 300 WHP goal and 400 WHP goal will both use different turbos, and once again, for different purposes. You're still trying to skirt around what you plan on using the car for. if you can't tell us that, we can't tell you anything useful.

$MIKE$

iTrader: (13)

Over night parts form summit.



But serious 8.3cr? Do some research this isn't 1998, do e85 and some 10.5:1

600cc are really small get some id1000 for pump or 2000 for e85.

Also hope you got a big budget
"The best" parts aren't cheap

bungalo101

Looks like you need to do some more research. Read the FAQ, read some GSR build threads, check out some dyno sheets to see what type of power curves are being made with different turbos and find something you like.

Post your budget as well if you want more than just generic responses.

DC2GSR808

What are all the things i could change to go boost? I know i could change the piston, rod, valve, valve springs, bearings, and flywheel, but idk if its necessary to change the camshaft or crankshaft.

COM2

For your power goals, a simple rod and piston combo will be fine. Keep it simple.

turbomaniac

i agree

DC2GSR808

So cp pistons and eagle rod on a gtx3071r good enough?

NotARaCist

iTrader: (1)

You're STILL skipping over the most important question. Answer it already, it's not that hard.

ferio-ichi3

^^^lol

DC2GSR808

Huh? What was the question?

TheShodan

iTrader: (14)

Schister66

What do you want out of the setup? What are your goals? What is the purpose/use for the setup/car? What is your budget?

Before you get wrapped up in the parts and details, you need to answer these questions....otherwise you're going to get a bunch of irrelevant, inconsistent opinions. Everyone has their idea of what is "best" but it may not be what you're looking for

TheShodan

iTrader: (14)

A more elaborate way of asking this.

Schister66

Yes, it was a bit repetitive, but i wanted to avoid this \/\/

wantboost

iTrader: (2)

There is no such thing as perfect.

For every power goal and purpose of the car a different part for a different system is required. Each part has it's pros and cons.

for example, a turbo for an 800hp car isn't going to be the proper unit for a 400hp motor. different intake manifolds for different power bands and purposes, different cam shaft profiles, different turbo manifolds with different runner lengths and diameters, etc.

different connecting rod materials and designs, different compression ratios, etc.

you need to decide on a concrete power goal and the purpose of the car and then start choosing parts around that goal and purpose.

however if you don't how how changing each part will effect the overall system I suggest you research heavily before purchasing anything

NotARaCist

iTrader: (1)

And to further expound on that, a proper turbo for a drag-oriented car will be different than a proper turbo for a road course car, and still different again from a proper turbo for an autocross car. There are WAY too many options out there, and WAY too many uses to have a "perfect" turbo.

DC2GSR808

A street car that I could take to drags and run around 12s. There is no budget for this build. I was thinking 400 hp with a good tune. But I wanted to see what kind parts you guys would offer that are great.