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LS with pistons and rods,how much boost can it handle?

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LS with pistons and rods,how much boost can it handle?

Old 04-29-2003, 02:02 PM
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Default LS with pistons and rods,how much boost can it handle?

hey i got a stock ls wich i'll be boosting soon,what i wanna know is how much boost can i run if i get crower rods and eagle pistons,i've got a pretty decent turbo set up(vortech FMU,450cc injec.t3 turbo,spo.comp. ignition syst.fuel pump,venom int.mani.afc controller.i wanna push 15-20#do u guys think just pist./rods will hold?
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Old 04-29-2003, 02:21 PM
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Default Re:LS with pistons and rods,how much boost can it handle?

pistons and rods will hold but your sleeves will crack at like 10 because you have a piece of ---- FMU

get better fuel management
if you pushing 15psi get a hondata or ems..
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Old 04-29-2003, 04:56 PM
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Default Re:LS with pistons and rods,how much boost can it handle?

Definatly gonna want to invest in a block guard. It just taps down into the coolant jacket around your cylinder sleeves. It'll keep the cylinders from floating and cracking.
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Old 04-29-2003, 06:50 PM
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Default Re:LS with pistons and rods,how much boost can it handle?

This is out of Mike Kojima's book called HONDA/ACURA ENGINE PERFORMANCE-"Block guard's greatly distort the upper part of the cylinder bore by several thousands of an inch,causing poor ring seal and can cause Seizing.One very well known quick class competitor had his block and cylinders crack right at the point where the block guard was installed,probably because the of the cylinder distortion and the huge stress riser the block guard created.There were also signs of seizer on both the piston and the cylinder wall and area of the block guard."
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Old 04-29-2003, 07:15 PM
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Default Re:LS with pistons and rods,how much boost can it handle?

I was also woundering about how much boost my motor can handle. I have a totaly rebuilt b18b, all new bearings, GSR water pump, Type R oil pump, with JE 9.0:1 turbo pistons, Eagle h-beam rods, my block is posted just like jeffs race ZC, I will be running a V-afc hack and 450cc injectors with an MSD inline pump, I have an Audi 5000 front mount with the end tanks rewelded for an intercooler. So whats do you guys think I can run boost wise?
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Old 04-29-2003, 07:30 PM
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Default Re:LS with pistons and rods,how much boost can it handle?

Originally Posted by lsturbo96coupe
I was also woundering about how much boost my motor can handle. I have a totaly rebuilt b18b, all new bearings, GSR water pump, Type R oil pump, with JE 9.0:1 turbo pistons, Eagle h-beam rods, my block is posted just like jeffs race ZC, I will be running a V-afc hack and 450cc injectors with an MSD inline pump, I have an Audi 5000 front mount with the end tanks rewelded for an intercooler. So whats do you guys think I can run boost wise?
Wow. Crank that ---- up!! You should be pushing 15-20 no problem as long as it is tuned good. You bastard. I want more boost
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Old 04-29-2003, 08:41 PM
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Default Re:LS with pistons and rods,how much boost can it handle?

Inline Pro does wierd things with stock engines and very high boost. You can't run them like that for long or they will blow, but...

450cc, 4:1 FMU, and AFC will get you 400+ whp if you can wrap your head around how you have to tune it. Take the boost in baby steps is my recommendation.

I'm middle of the road on the blockguard situation. They are complete ---- unless you install them correctly... welded in, and the bores honed with a torque plate to correct the distortion that does happen when you install the blockguard. Once you do it right... they do alright. It's not a set of GE/Darton sleeves, or a Dart block, but you didn't pay that much either.
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Old 04-29-2003, 08:52 PM
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Default Re:LS with pistons and rods,how much boost can it handle?

I am ANTI-BLOCKGUARD all the way. If you do a search you will find my post on blockguards. For the amount of work it would take to "properly" install one, you should just do it right and not have to worry about it. Sleeves are the only way to go when it comes to supporting the cylinders. I'm not sure on the posting thing, but we will see how that turns out.
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Old 04-29-2003, 09:01 PM
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Default Re:LS with pistons and rods,how much boost can it handle?

man if your boosting your b18c1 i would seriously invest in hondata... because thats the best and its gonna give you the most hp, and u dont risk anything.

also i can see a b18c1 surviving a 20psi run with rods and pistons tuned.
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Old 04-30-2003, 06:33 PM
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Default Re:LS with pistons and rods,how much boost can it handle?

I hate to sound like a *****, but here it is:

There are to many ing variables to say "What can my motor w/ rods & pistons handle?".

1) depends on what type of management you will be running,
and there are then many more variables (ie: i have an
FMU; ok what disk? what pump? or I have Hondata; who
tuned it? butt dyno? real dyno?) What about the ignition
timing?

2) type of fuel? ( a car on vp c16 can take alot more boost
than a car on 91 octane cali' **** gas)

3) condition of the block?

4) intercooled? non-intercooled?


So what I am trying to say, is there are to many variables for a definite answer. So my suggestion would be to do a little research; there is a ton on the net. Learn from others; check out their setups. Finally, if you are going to ask these vauge questions, GIVE DETAILS DAMNIT!

DETAILS ARE WHAT SEPERATE GOOD CARS FROM GREAT CARS!

Ben
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