18 replies to this topic

[riant5]

so i have a stock 96 850, im pretty sure its a t-5 but i dont have any badging to prove it, how do find out what model it is???? but anyways, aside from that less important question, i was wondering if i could add a mbc to my stock setup and turn it up a couple lbs, maybe run 12psi? is this ok?

[850 LongBeach]

12 Psi would be fine if it was a T5

install a boost gauge on the stock pressure and see what it climbs to

Is there a turbo needle on the dash

If you can, take the heat shield off and look at what turbo it is, that will tell all!

15g=T5/R/T5-R in the USA at least

[oRange855]

Theres no reason to take anything apart first off 96's were all HPT secondly if the 7th digit of the vin is a 7 its a normal turbo, if its a 8 its a R. All have 15g's in the US.

[riant5]

ok, so there is a boost gauge in the gauge cluster, but i know its not an r, at least im pretty sure because it doesnt have the special door seals or whatever that the Rs have, i think they have the chrome door seals right? also what do you guys think would be the most boost i should run on this engine with it being stock? i was planning on putting in boost and a/f ratio gauges anyways.

[riant5]

anybody?

[BoostedBrick]

Just check the VIN, that will tell you everything you need to know. Look for the 7 in the 7th spot, easy to remember haha. I think the LPT would be a 5 but not 100% sure on that.

If you install a good quality boost and AF gauge you should be able to slowly add a few pounds of boost. Just make sure you don't get too lean...or too greedy. Remember, with the quick spool of an MBC it will become much easier to bend rods, and thats no fun.

[riant5]

hopefully bending rods wont be too much of a problem for me since everything is gonna be stock

[Jaxx]

BoostedBrick, on 24 October 2009 - 03:36 AM, said:

Just check the VIN, that will tell you everything you need to know. Look for the 7 in the 7th spot, easy to remember haha. I think the LPT would be a 5 but not 100% sure on that.

If you install a good quality boost and AF gauge you should be able to slowly add a few pounds of boost. Just make sure you don't get too lean...or too greedy. Remember, with the quick spool of an MBC it will become much easier to bend rods, and thats no fun.

no LPT in 96.

edit: and yeah, you're good to run upto 1 bar. fuel cut will stop it if it's higher than that. I ran 13 or so in the burgundy... It ran a 14.9 @ 90.6, heat soaked. You'll be amazed what a big difference a few PSI is.


edit2: a quick spool from an MBC won't bend rods. Stop spreading bad info, jesus christ. Detonation causes bent rods, not high boost low rpm bullshit. @OP, you run a good octane rating and you'll be fine with the stock ECU. It knows how much fuel to give anyway, in open loop it will take care of itself.

[BoostedBrick]

Quote

a quick spool from an MBC won't bend rods.

You are correct, a quick spool is not the cause of bent rods, but it is the cause of knock, which does bend rods.

[Jaxx]

BoostedBrick, on 24 October 2009 - 04:42 PM, said:

You are correct, a quick spool is not the cause of bent rods, but it is the cause of knock, which does bend rods.

Yes. I like to point this out otherwise people start assuming that more boost means too much pressure or something and then you have people walking around saying this:



Just next time, explain what you mean, it helps members, and it helps people who are searching.

[riant5]

wow so you ran a 14.9 in an 850 with just turning the boost up to 13psi?

[excessive101]

BoostedBrick, on 24 October 2009 - 04:42 PM, said:

You are correct, a quick spool is not the cause of bent rods, but it is the cause of knock, which does bend rods.

not having enough fuel causes pre-detonation which will bend rods.. anything with 15psi or under the ecu should be able to compensate for without a problem.. anything beyond that.. I'd swap in some slightly bigger injectors..



one piece of advice.. before cranking up the boost.. replace your fuel filter..

[riant5]

excessive101, on 24 October 2009 - 10:24 PM, said:

not having enough fuel causes pre-detonation which will bend rods.. anything with 15psi or under the ecu should be able to compensate for without a problem.. anything beyond that.. I'd swap in some slightly bigger injectors..



one piece of advice.. before cranking up the boost.. replace your fuel filter..

good advice, thank you

[BoostedBrick]

Quote

Yes. I like to point this out otherwise people start assuming that more boost means too much pressure or something

Quote

Just next time, explain what you mean, it helps members, and it helps people who are searching.

Thats a very good point, sometimes I forget that other people can't see inside my brain haha.

Quote

and then you have people walking around saying this:

LOL! Yes, and then after you shift up through 7 gears while testing your car, the floor board falls out.

[gilber33]

oRange855, on 23 October 2009 - 10:01 PM, said:

Theres no reason to take anything apart first off 96's were all HPT secondly if the 7th digit of the vin is a 7 its a normal turbo, if its a 8 its a R. All have 15g's in the US.

not to steal the op's spot light here, but quick question.

That info applicable to all years? I carfaxed my VIN and got 2.4l n/a, 7th digit of vin is a 7, has a boost gauge, emblems, and most importantly, a turbo. Just weird.

[excessive101]

/\ yea that happens sometimes.. just a simple mix up during the stamping process..

happened to my dad's suburban 1500 350 v8 vin said it was 2500 series with a 454..


meanwhile, enjoy the slightly cheaper insurance..

[gilber33]

excessive101, on 25 October 2009 - 01:43 AM, said:

/\ yea that happens sometimes.. just a simple mix up during the stamping process..

happened to my dad's suburban 1500 350 v8 vin said it was 2500 series with a 454..


meanwhile, enjoy the slightly cheaper insurance..

Work it. I'm going the enjoy the fruck out of it.

[Jaxx]

riant5, on 24 October 2009 - 08:58 PM, said:

wow so you ran a 14.9 in an 850 with just turning the boost up to 13psi?

yep. it was something like that. From the trap speed you can tell that heatsoak and motor age was a factor. many people trap a few mph quicker.

[riant5]

nice