how much rwhp can my motor handle

bis_1315m

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Dec 14, 2006
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charlotte north carolina
Hey whats goin on just curious but how much boost do yall thank I can run on my motor without it blowing up and about how much rwhp do you think I should be making. These are a list of my mods.

60-1 turbo
hks filter
2.5 ic piping
hks f-con
hks fcd
apexi n1
3in exhaust piping turbo back
cometic headgasket
hks bov
fidanza flywheel
stage 2 act clutch

I'm going to be installing a boost controller soon and just curious on how much I can boost safely without being rich or lean or having it blow

thanks
Michael
 

Rennat

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Dec 6, 2005
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why are you using an hks FCD? get a lexus afm housing and some injectors! and i serisouly hope you forgot to put a fuel pump into that list...

how much boost is your 60-1 running right now?
 

bis_1315m

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Dec 14, 2006
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Rennat;1163044 said:
why are you using an hks FCD? get a lexus afm housing and some injectors! and i serisouly hope you forgot to put a fuel pump into that list...

how much boost is your 60-1 running right now?

It's running stock boost and no I didnt forget to put fuel pump in that list I just bought this car and this is how it was setup the a/f ratio looks alright but I know I need a fuel pump for that turbo and why do yoo ask why am I using a fcd and how much will the lex afm and 550's help my numbers
 

jdub

Official SM Expert: Motor Oil, Lubricants & Fil
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Feb 10, 2006
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I'd be more worried about who installed the Cometic MHG, if both the block/head was decked, what hardware & torque spec was used to torque the head down and if the head bolts/studs have been retorqued since the HG change.

Turn up the boost without any of the above done correctly = BHG in very short order.
 

bis_1315m

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Dec 14, 2006
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jdub;1163050 said:
I'd be more worried about who installed the Cometic MHG, if both the block/head was decked, what hardware & torque spec was used to torque the head down and if the head bolts/studs have been retorqued since the HG change.

Turn up the boost without any of the above done correctly = BHG in very short order.

Dont know to much about the hg I'm pretty sure the guy I bought it from decked and retorqued new stock bolts to the right torque specs and that is all I know about the hg and the motor has been freshend up with new belts new oil pump new plugs,wires, water pump, main seals, and new radiator
 

Rennat

5psi...? haha
Dec 6, 2005
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re-torque the head studs/bolts first. i didnt eve think about that...

TAKE OFF THE FCD! Fuel cut SAVES your engine, fuel cut is NOT a bad thing.

Lex + 550 = 400hp+ range

and for the price, the walbro flows a little more @ a little higher pressures, although the TT pump is a lot quieter. all depends on how much you feel like spending.

Still on the stock intercooler? if so, get rid of it, get a DM one, pick your style and get that in.
 

jdub

Official SM Expert: Motor Oil, Lubricants & Fil
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Feb 10, 2006
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I would find out for sure if I were you ;)

Specifically:
- Was both the block and head decked to a 50 RA to meet the Cometic MHG smoothness spec...a lot of guys do not pull the motor to have the block decked. If they don't, it's a crap shoot if the MHG will seal or not. The block at minimum has to be perfectly flat.

- If new stock bolts were used, they should have been torqued to 70-75 ft/lbs. After 5 complete engine heat-up/cool-down cycles (minimum), the head bolts should have been re-torqued back to the same range. Search "retorque" for specifics on how to do this.

You can crank up the boost without knowing/checking either...if you do, I'll bet we will be reading a "why am I blowing white smoke from my exhaust" thread in the fairly near future.
 

zambini

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Jan 16, 2008
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man id say leave the boost levels for a minute until you have worked out the weaker spots in your system. sounds like you have quite a bit of prep work involved already.. why blow it all up with a (relatively) huge turbo before you can really enjoy it?
 

Woody1989

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Apr 17, 2008
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zambini;1163047 said:
if not the fuel system, its the clutch id be worried about.. whats it good till, 330hp?

My factory clutch held fine for several 400hp+ pulls on the dyno. However, since the exhaust upgrade and intercooler upgrade I have noticed it can slip in third & fourth gear. Haven't been back to the dyno yet to see where the power is at now.

Brad


Edited by Jdub: Lets avoid a thread jack shall we ;)
 

turbo87targa

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Nov 10, 2006
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jdub;1163050 said:
I'd be more worried about who installed the Cometic MHG, if both the block/head was decked, what hardware & torque spec was used to torque the head down and if the head bolts/studs have been retorqued since the HG change.

Turn up the boost without any of the above done correctly = BHG in very short order.

something tells me if the previous owner put on a MHG, and didnt spend the extra $120 on arp studs, he didnt spend the money to have the block decked either....

which is really sad, why spend the time and money to be right there where you need to be, only to put it back together half finished?

get it done right the first time.
 

zambini

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Jan 16, 2008
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turbo87targa;1163098 said:
something tells me if the previous owner put on a MHG, and didnt spend the extra $120 on arp studs, he didnt spend the money to have the block decked either....

which is really sad, why spend the time and money to be right there where you need to be, only to put it back together half finished?

get it done right the first time.

mkiii syndrome.:icon_mull

i know i suffer from it:sarcasm:

...sadly.