Whats up HT, got a b18c looking to boost her spec on the motor

B18c 84 mm bore
Darton sleeves
Manley rods
Cp pistOns 11.5:1
Ls crank makes it straight 2.0liter
Blueprinted and balanced
Head has super tech valve spring retainers and valve guides
Stock gsr cams
I/h/e
Skunk 2 intake manifold


Also I am keeping ac/ps

Really looking into the Reaper/ silver surfer turbo
Power goals 350-400 ish it's my daily

Need some input as to if my compressionnis to high to be running daily
And if this setup is good for the goals I'm seeking.. Thanks guys for your input

 

Get some e85 and a good tune

 

God I hope not. I'm about to have my stock JDM 18C Type-R engine fitted with a Garrett GT28RS and the compression ratio is 11.1 to 1. The last thing I want is to reduce the reliability or longevity of the engine.

 

11.5 is perfectly fine IF you have the right fuel to meet your goals. A perfect example (allbeit not a great analog) is a diesel engine. They're roughly 15-20:1 compression ratio, but they're built for it and they have the proper fuel for that situation. E85, race gas, pump gas with methanol or even straight pump gas (depending again on your goals) are all viable solutions

 

I will be running 93 oct

Again goals are 350-400 hp

 

What's good with the silver surfer turbo. I've read plenty good about it.. Will t his turbo be good for the goals I'm seeking

 

Im building a 13.5:1 build for E85. E85 LOVES compression.

 

Understandable but I would like to keep my 93 oct as 85 is hard to find around town

 

IMO its all relative anyways. Youre just going to find the knock threshold at a much lower ignition advance than at low compression. So what? Talk to your tuner. 350hp isnt anything crazy.

 

Do you care to elaborate about the knock threshold??

 

I dont want to type a novel. Its the point at which you can advance the ignition at a given load/rpm to the point of detonation/knock. Its relative to many factors including fuel octane and cylidner pressure. Cylinder pressure being a product of static piston compression and manifold pressure.

 

Muckman is correct^^^

Yes you can safely boost it and make 400 whp on 93 pump gas.

You just need to be damn sure you have a good tuner, as you will reach your power goal with less timing advance and less boost that a lower c/r motor, as long as there is no knock/detonation your good to go....

The reaper/silver surfer is an awesome turbo, but it is temporarily discontinued for a revamping, so I'm not sure if you will be able to find one???

 

^^PM TheShodan and find out. He's a great guy to work with. I've done business with him in the past and will do more in the future

 

The reaper is discontinued. The surfer is available on marketplace. Awesome turbo built with response in mind. That'll be an awesome setup. Just remember to make sure you use a good Tuner. E85 would be safer then 93 but 93 is def doable for your goal.