BLKOUT2's getting honed

Contour Enthusiasts Group Archives

I'll soon be sending out BLKOUT2's UIM to be max-honed. With this and a modified LIM(bore increased with custom butterfiles) i'm hopping to inch closer and closer to mid 14's.

After hitting the 14 second mark(even if only by .001) i'm very excited to see just how deep into the 14's i can push this 2.5 N/A. I have another drag day Aug 4th, for which i'll be installing my test pipe, it made a big difference on my SE, hoping for similar gains with the SVT.

I'm hoping to at least run with the MAX UIM yet this year, other plans for the 2.5 this fall:

Modified LIM
Head porting on a spare set of heads i have
I may considder trying out some drag radials as i've been running all my runs to date on some rock-hard rubber.
Possibly tune for A/F and Timing adjustment.

I have a Salvage title SVT that i'll be throwing a 3L into with some goodies for fun this winter for my open-track car.

So, any plans/predictions\suggestions to help achieve my goals of running with some of the 3L boys with the N/A 2.5?

Originally posted by Pole120:
So, any plans/predictions\suggestions to help achieve my goals of running with some of the 3L boys with the N/A 2.5?

Def. get the tires...

Originally posted by Pole120:

I have a Salvage title SVT that i'll be throwing a 3L into with some goodies for fun this winter for my open-track car.

Don't try hot dogging it around a new development and roll it trying to dodge a "deer".

Well if you are going all out... Pete had the SHM long tube headers and he was telling me that they are better (power all throughout the band) then the MSDS ones... he had them both and like the SHM's better.

Can't wait to see this.

Originally posted by â�??�??\â�?»/â�??º:
Well if you are going all out... Pete had the SHM long tube headers and he was telling me that they are better (power all throughout the band) then the MSDS ones... he had them both and like the SHM's better.

ya because you see those pop up for sale all the time.

should run some juice. That will get you up into the mid 13's

Originally posted by Tourige:
should run some juice. That will get you up into the mid 13's

Not interested right now...

I do have future(2008) plans for a nitrous setup, should be an eye catching layout.

Originally posted by bensenvill:

Originally posted by â�??�??\â�?»/â�??º:
Well if you are going all out... Pete had the SHM long tube headers and he was telling me that they are better (power all throughout the band) then the MSDS ones... he had them both and like the SHM's better.

ya because you see those pop up for sale all the time.

Hence me saying 'if you are going all out.' I'm just saying, pete seemed very talkative about them... nearly had me shelling the 1,200 they cost, out.

Last I checked they aren't in production and haven't been for many years.

Originally posted by todras:
Last I checked they aren't in production and haven't been for many years.

Well, When I spoke to pete last friday he seemed to think that you could call them up and have them make you a set since they would still have plans for them. Anyways, I don't think I will say anything more. I was just suggesting something that would help him run with the 3L's better. The devil seems to be in the details of all the minor parts adding up to more power.

I have no doubt that if you could get a set of longtubes or make your own you'd make more power.

Originally posted by â�??�??\â�?»/â�??º:

Originally posted by todras:
Last I checked they aren't in production and haven't been for many years.

Well, When I spoke to pete last friday he seemed to think that you could call them up and have them make you a set since they would still have plans for them. Anyways, I don't think I will say anything more. I was just suggesting something that would help him run with the 3L's better. The devil seems to be in the details of all the minor parts adding up to more power.

you have a way I can contact him?

tomorrow i'm going to get a set of stock manifolds at a scrapyard to make my own set of longtubes. hopefully i can build a nice set. mine are going to replace the Y pipe, they will be long tubes, and collect where a test pipe would go, with a 3" Y that you can get anywhere like summit or whatever.

do lots of head work. bigger valves, port the heads, gasket match the intake side and put bigger roller cams in it with adjustable cam gears.. put on a thinner head gasket to up the compression. if you want more torque (lower et times) try to find some slightly shorter rods and then also deck the block to keep your compression up. if you do deck it you will have to make sure you get the LIM machined to match the new angle. for the exhaust side i think youll have to make a good set of headers that will scavange well and help bring the VE up closer to 100% maybe even over 100%

that should get you into the low 14s probably even the high 13s

that all sounds great, but we're talking about a contour engine here. there's nothing availible.

we put 3 litre valves in our 2.5 head, and BTW....shorter rods only makes more RPM, not necessarily torque. maybe on the high end, but you would lose your launch torque. anywho, making more HP than torque on a motor with 133k, i dont have a problem with that. i just wanna break 300. thanks for the info though..... if you can find me any aftermarket cams for the 2.5 let me know! (minus ST220s, they are impossible to find)

You can get cat-cams...GL with that though...

Originally posted by striker2:
do lots of head work. bigger valves, port the heads, gasket match the intake side and put bigger roller cams in it with adjustable cam gears.. put on a thinner head gasket to up the compression. if you want more torque (lower et times) try to find some slightly shorter rods and then also deck the block to keep your compression up. if you do deck it you will have to make sure you get the LIM machined to match the new angle. for the exhaust side i think youll have to make a good set of headers that will scavange well and help bring the VE up closer to 100% maybe even over 100%

that should get you into the low 14s probably even the high 13s

yeah.. thinner head gaskets and decked block will be great for putting holes in the pistons when the valves slam into them.

Originally posted by WRX Barge:

Originally posted by striker2:
do lots of head work. bigger valves, port the heads, gasket match the intake side and put bigger roller cams in it with adjustable cam gears.. put on a thinner head gasket to up the compression. if you want more torque (lower et times) try to find some slightly shorter rods and then also deck the block to keep your compression up. if you do deck it you will have to make sure you get the LIM machined to match the new angle. for the exhaust side i think youll have to make a good set of headers that will scavange well and help bring the VE up closer to 100% maybe even over 100%

that should get you into the low 14s probably even the high 13s

yeah.. thinner head gaskets and decked block will be great for putting holes in the pistons when the valves slam into them.

In his defense, he did say to get some shorter rods. But that is just plain stupid work to be doing on this motor.

Mark

The goal here is to run mid 14's with minimal work/cost.....

Originally posted by TRicker:
if you can find me any aftermarket cams for the 2.5 let me know! (minus ST220s, they are impossible to find)

Look in my sig

.

Aaron

Originally posted by Y2KSVT:

Originally posted by WRX Barge:

Originally posted by striker2:
do lots of head work. bigger valves, port the heads, gasket match the intake side and put bigger roller cams in it with adjustable cam gears.. put on a thinner head gasket to up the compression. if you want more torque (lower et times) try to find some slightly shorter rods and then also deck the block to keep your compression up. if you do deck it you will have to make sure you get the LIM machined to match the new angle. for the exhaust side i think youll have to make a good set of headers that will scavange well and help bring the VE up closer to 100% maybe even over 100%

that should get you into the low 14s probably even the high 13s

yeah.. thinner head gaskets and decked block will be great for putting holes in the pistons when the valves slam into them.

In his defense, he did say to get some shorter rods. But that is just plain stupid work to be doing on this motor.

Mark

as long as you leave a minimum of .035" deck clearance (top of piston @ TDC to bottom of head) you should be fine. the shorter rods will give you more torque cause you are increasing the rod angularity thus increasing the pushing force around and not down. if your still concerned about the deck clearance then get some smaller compression height pistons.

now since josh said that he wanted to do minimal work to it then changing internals is out the window. however you can still get lots of power from changing the cams and doing head work. you want to get your Volumetric efficiency as close to if not over 100% (up to about 130% is possible from most N/A engines) also dont forget that with 4-valves you can go about half the lift required of a 2 valve and still flow the same if not better.

While you have the heads off for honing, which valve springs were you figuring to use: do you plan to party above 7500 rpm? And you're going with stock valves?

Originally posted by SVT SNOB:

Originally posted by TRicker:
if you can find me any aftermarket cams for the 2.5 let me know! (minus ST220s, they are impossible to find)

Look in my sig .

Aaron

So are you actually using those cams? I'd really like to know how they do.

Originally posted by warmonger:

Originally posted by SVT SNOB:

Originally posted by TRicker:
if you can find me any aftermarket cams for the 2.5 let me know! (minus ST220s, they are impossible to find)

Look in my sig .

Aaron

So are you actually using those cams? I'd really like to know how they do.

Gotta find someone brave enough to install them and wont charge me an arm and a leg to do it. I'm actually going to be buying another 3L engine so I was wondering if I should just hold off until I do 3L engine version 2 for next spring. But trust me once they are in sounds clips and vids will follow

.

Aaron