help w headgasket selection. - Page 2

marc · 01-25-2007, 11:19 PM

well im keeping my engine in my car, and never plan on running more than 25lbs thru it. so botls or studs? im buyin them today.

marc · 01-26-2007, 02:19 AM

im just ganna go bolts

SupraDupra · 01-26-2007, 12:51 PM

I may need some education here ,I don't know a ton about turbos but 25 lbs boost sounds pretty intense.By my calculations that would put you at a little over 14:1 compression ratio under full boost.Although according to wikipedia that's an ideal ratio ,wouldn't you need to run race fuel for that?

IHateHacks · 01-26-2007, 04:29 PM

First of all if you are running anywhere close to 20psi you will need more than head studs, a metal head gasket and race gas. You will need rods, ARP rod bolts, pistons, lexus maf, 550's, walbro pump, and something to tune it, at least a S-AFC. But to do it properly "I" would strip the block, send it to a shop, do it right.

Use bolts only if you are going to keep it fairly stock, like no more than 10psi. If you are using a metal head gasket then don't skimp out, use head studs.

marc · 01-26-2007, 05:29 PM

lol ok realasticly maybe 18 lol. i wwouldnt run that much with this car. a future one def tho.

marc · 01-26-2007, 05:30 PM

and that wont be any time soon.

marc · 01-26-2007, 05:31 PM

k studs it is.

IHateHacks · 01-26-2007, 05:46 PM

Just remember what I said in the last post on the first page of this thread.

"Studs are much more difficult to install with the engine in the car, but are stronger and less prone to stretching. Head Bolts will be easier to install with the engine in the car, but are not reccomended for high-boost applications."

It's a 2 way street. Studs are very hard to install with the block in the car but will hold up to alot of abuse. Bolts are VERY easy to install but are not meant for high boost.

Thats why I just used bolts, very easy.

It's not like that for all cars. Like transverse mounted engines such as an EVO, studs are no harder to install than bolts because the head doesn't have to clear the firewall.

marc · 01-26-2007, 05:58 PM

y are studs so much harder?

marc · 01-26-2007, 06:18 PM

hacks how old r u? im 17 and im ganna be doin this pretty much all myself, i have ebnough knowledge of cars to be confortable doing it. i wonder if this is a record or sumthing lol.

01-25-2007, 11:19 PM	#11
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	well im keeping my engine in my car, and never plan on running more than 25lbs thru it. so botls or studs? im buyin them today. __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

01-26-2007, 02:19 AM	#12
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	im just ganna go bolts __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

01-26-2007, 12:51 PM	#13
SupraDupra 3" Exhaust Join Date: Oct 2006 Location: Cleveland OH Posts: 129	I may need some education here ,I don't know a ton about turbos but 25 lbs boost sounds pretty intense.By my calculations that would put you at a little over 14:1 compression ratio under full boost.Although according to wikipedia that's an ideal ratio ,wouldn't you need to run race fuel for that? __________________ 1988 Supra - N/A 5 speed 1974 'Cuda - 318 2001 Cherokee

01-26-2007, 04:29 PM	#14
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	First of all if you are running anywhere close to 20psi you will need more than head studs, a metal head gasket and race gas. You will need rods, ARP rod bolts, pistons, lexus maf, 550's, walbro pump, and something to tune it, at least a S-AFC. But to do it properly "I" would strip the block, send it to a shop, do it right. Use bolts only if you are going to keep it fairly stock, like no more than 10psi. If you are using a metal head gasket then don't skimp out, use head studs. Last edited by IHateHacks; 01-26-2007 at 04:32 PM.

01-26-2007, 05:29 PM	#15
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	lol ok realasticly maybe 18 lol. i wwouldnt run that much with this car. a future one def tho. __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

01-26-2007, 05:30 PM	#16
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	and that wont be any time soon. __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

01-26-2007, 05:31 PM	#17
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	k studs it is. __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

01-26-2007, 05:46 PM	#18
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	Just remember what I said in the last post on the first page of this thread. "Studs are much more difficult to install with the engine in the car, but are stronger and less prone to stretching. Head Bolts will be easier to install with the engine in the car, but are not reccomended for high-boost applications." It's a 2 way street. Studs are very hard to install with the block in the car but will hold up to alot of abuse. Bolts are VERY easy to install but are not meant for high boost. Thats why I just used bolts, very easy. It's not like that for all cars. Like transverse mounted engines such as an EVO, studs are no harder to install than bolts because the head doesn't have to clear the firewall. Last edited by IHateHacks; 01-26-2007 at 05:48 PM.

01-26-2007, 05:58 PM	#19
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	y are studs so much harder? __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

01-26-2007, 06:18 PM	#20
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	hacks how old r u? im 17 and im ganna be doin this pretty much all myself, i have ebnough knowledge of cars to be confortable doing it. i wonder if this is a record or sumthing lol. __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

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