Engine rebuild - will this be safe for 850-900 hp?

[Wheysted]

Having my engine rebuilt and I'm hoping to make a safe 700hp on 93 pump and 850-900 on e85

This is my current build:

Pistons 10:1 compression
H beam rods
Modualar performance cylinder support
Opg/Cs
Mmr timing guides
Mmr primary tensioners
Arp head studs 11mm
Arp main stud kit

I may also add meth for only cooling and I'll also be getting a fore dual pump fuel system

I don't wanna blow my engine again, so looking for any advice or anything else I might need please

Sponsored

 

[BoostKing]

Looks like a winning combination for that power level. Can't say it will last forever, but built right and taken care of it should perform well for a while for you.

 

[Wheysted]

Looks like a winning combination for that power level. Can't say it will last forever, but built right and taken care of it should perform well for a while for you.

Ok great I'm so worried now... I'll probably baby the car on pump gas and probably even limit how many passes i do on e85 haha

 

[silverbullet85]

I would up the compression especially since you will be running e85. 15 to 17 is 11:1 and 18 up is 12:1 I wouldn't go below 11 imo

 

[Wheysted]

I would up the compression especially since you will be running e85. 15 to 17 is 11:1 and 18 up is 12:1 I wouldn't go below 11 imo

O dang I already have the 10:1 pistons :/

 

[silverbullet85]

It's not the end of the world. But a higher compression engine will make more power in and out of boost, just means you'd have to run more pulley then someone with a factor engine mod for mod to get the same hp. I would see if you can exchange them if I were you.

 

[Wheysted]

It's not the end of the world. But a higher compression engine will make more power in and out of boost, just means you'd have to run more pulley then someone with a factor engine mod for mod to get the same hp. I would see if you can exchange them if I were you.

Eh it's ok... just gonna have higher boost then. On a vortech so prob go 3.33 pulley

 

[Wheysted]

The 10:1 will be safer on pump gas but the trade off like already said is parasitic loss. If you want safer the 10:1 are for you.

Safe is what I'm going for now hopefully can still make 850 on e85

 

[silverbullet85]

I would just do it once do it right and get the higher compression pistons, the car was built from factory to be high. When I built my second 02 lightning engine I went 9 to one instead of 10.5 to 1 which is what the older built motor had and it felt like a turd all other things were the same except compression ratio.

 

[ice445]

I would just do it once do it right and get the higher compression pistons, the car was built from factory to be high. When I built my second 02 lightning engine I went 9 to one instead of 10.5 to 1 which is what the older built motor had and it felt like a turd all other things were the same except compression ratio.

I disagree, if you want to set these engines up to run boosted with high HP numbers and reliability is a concern, a lower compression setup is ideal. There's a reason the Predator engine isn't 11 or 12:1 compression. The safety margin achieved on pump gas is well worth the small amount of extra boost you have to run to make equivalent power. It's not like 10:1 is going to be a dog either.

If you're only going to run ethanol or race gas then sure, high compression ratio is ideal.

Sponsored