My question is how much can stock sleeves handle with boost? Also is it possible to reach my goals without blowing my motor and daily driving it? Anyone have a similar setup that has lasted over the years with stock sleeves? How far can I push my stock sleeves? Thanks in advance

Goal: 450-550hp
Engine: Head-port and polish 315cfm
supertech valve springs
supertech valves
supertech retainers
delta camshaft regrinded to 272 lift
victor x intake mani with s2 throttle
denso 1000cc injectors
str fuel rail
aeromotive fpr
walbro 255lph
bosche inline fuel pump

Engine: Block-B18c5 bored .5 over
Golden eagle block guard
SRP pistons 81.5 9.1 compression
Eagle Rods

Turbo: Turbonetics 60-1 ball baring

 

From my research low 500s is resonable for stock sleeves. People have done more, but then your on borrowed time.

 

Skip the head porting and the supertech valves. OEM are just fine if there is nothing wrong with them. Also, buy the Injector dynamics 1000cc's. U dont need a bosch inline pump either, 450-550 totally do-able with a single walbro 255.

WTF is a delta camshaft regrinded to 272 lift? BTW 272 lift (if thats what it is) is complete weaksauce. A honda head can handle up to a .500 lift. So you would be cheating yourself. Use itr cams instead.

I dont see any reason that you couldnt daily something that is 500+ although you will prob get in all kinds of trouble. Also, most tuners wouldnt reccomend anything over 350 on stock sleeves, but my own car has seen 500+ on a block guarded Ls. The way I see it: If you blow up a stock sleeve block all you gotta do is bore .5 over a new block and re-ring & bearing it. So your out minimal money really

 

i myself just got a built ls and it will be a dd im also looking for around the same 400-500hp are block guards any good should i use one i hear that they block the the sleeves from being cool or resticted the coolant is this true

 

I just see it as cheap insurance. With a blockguard in and you crack a sleeve. You have more chance of just cracking the sleeve so the piston/rod is salvageable. Without it the side of the sleeve could crack out and blow your whole motor to pieces.

Some would recommend a bore after install though, as the blockguard could "sqeeze" the cylinders out of shape.

 

you better have a damn good tuner for anything over 450ish on stock sleeves. Not all engines are the same either, some will take it some wont. tuner1s cams will make more power than itr but either will work for your goal, use a stock TB, ID 1000s, single walbro is sufficienty but 2 is extra insurance for only 400$ with bracket. skip the P&P job, block guard, and tb and put the money into a sleeve job IMO. the money will be better spent on sleeves or tuning. You should ALWAYS bore/hone and decked after installing block guard. At the very least have it checked for egg shape

 

400 is streetable. 500 on stock sleeves is in borrowed time

 

so what boat does that put me in. stock sleeves and stock pistons and rods....

 

Ur cheating!


True story

 

with that compression and a 60-1, you are seeing 20psi on 500whp... i suggest run e85 and you will be fine. or maybe 95octane and up

 

how?

 

My friend has a 74mm turbo running 15psi on the street and 17 at the track.. He also has spray.. He had a vortec supercharger on it before with spray and he is still on the same stock block engine.. He drives it all the time

 

my ls made 500 on stock sleeves for 6 months and 600+ on the same motor for 4 more months running the hell out of it, that motor is now coming out to go into another car, to make about 450-500 as a weekend warrior

 

we have a car about 575whp stock sleeve gsr in drag car for 2 years now, but its a good tune on e98

 

mine was on q16 the whole time aside from about the first 100 miles

 

I ran over two years on a stock motor at 500+ with no problems. On race gas though not pump.

 

Goal: 450-550hp
Engine: Head-port and polish 315cfm (no)
supertech valve springs (yes)
supertech valves (yes)
supertech retainers (yes)
delta camshaft regrinded to 272 lift (no)
victor x intake mani with s2 throttle ( will help, but not needed)
denso 1000cc injectors (yes)
str fuel rail (no) use stock rail wil 6 A.N. feed
aeromotive fpr (no) but will help hp go up without more psi)
walbro 255lph (yes)
bosche inline fuel pump (no)

Engine: Block-B18c5 bored .5 over (ok)
Golden eagle block guard (ok) if it makes you feel better)
SRP pistons 81.5 9.1 compression (ok)
Eagle Rods (ok)

Turbo: Turbonetics 60-1 ball baring (?) garrett, borg warner, precision is better


This is for your power goals. Go to Evans-tuning.com and look in the b-series dyno charts. Copy a setup making the power you want and you can change little things around to your liking.

 

T1 tuned it lol

 

Where does that put me then?

 

^ LOL

 

When your stock sleeve goes you wont be able to bore and start over. They will crack and will need to be re-sleeved.

 

my motor is at 510 and has been for over 15k miles now, it has countless 1/4 mile passes, its tuned by jeff evans for 93 octane.

 

You mis-read what i said. The key word is bore over a *new* block. Re-read it

 

thats assuming you dont trash out the components if you crack a sleeve. Ive seen it happen both ways. Although I would agree that a block would help contain the damage and keep the sleeve from peeling like a bannana.

 

naw thats the list of the things done and the things i have already but thanks for the info