Cams

[civics91]

yes i did

[VitaminT]

Wow, that blows.

[GTS4-R]

i have stock redtop sr20det cams if u want em CHEAP!

[dj_lennon_franz]

my head is built....but as far as i know the step 1 cams can go on a stock head....and the idle is very rough but we think it is MAFS related

cams will do that...remember..ur changing the duration at which the intake and exhaust valves are opened so it will make for a very rough idle

[f150intally]

talk to any1 over at Jspec or phase2 and see what they think of solid lifters vs hydrolic.....u'll hear the same thing....unless of course u wanna buikld ur machine to rev past 8 grabd

I don't need to talk to anyone over there. They don't really have cars that they race on a regular basis. Scott at Secret Services and Shaun at NRG Performance, both of which made the most power in the United States, have suggested that upgrading to solid lifters is a much more reliable choice when reving higher than the stock redline.

If Jspec and Phase2 were making 550rwhp and ACTUALLY RACING THEIR CAR like the previous 2 examples, then I'm sure that based on their experience they will agree that a solid lifter is more reliable. Just because they are not running them on their cars doesn't mean they don't think they are more reliable.

Shaun ran a 10.50 @ 139 miles/hour. He was not running solid lifters due to budget constraints but he would be quick to tell you they are far more reliable.

How can they not be? Just think about it for a second.

[f150intally]

well he's planning on making as much power as me.....also using a t3/t4 running prolly upwards of 22psi.....he'll HANDS DOWN NEED a HG

I agree on this one. If he has goals of more than 380whp-400whp then a metal headgasket with ARP headstuds is more reliable.

I was just referring to the lame comment of a head gasket letting go with a t25 running 1 BAR. This statement is complete non-sense.

[Dori Dori]

This is just an FYI.

'hurddawg' posted this in another thread...these are headgasket thicknesses and their resulting compression ratios according to Apexi.

Thickness__(0_o)__Compression Ratio 0.8mm___________8.71.1mm___________8.51.5mm___________8.21.8mm___________8.1

[f150intally]

nice reference material...

[240SXer]

A dude on freshalloy dynoed that same turbo with the same cams i'm getting.

stock SR20DET RWD, GT25R .86 A/R, hks 264 step 1 cams.

361 Hp @ 17.5 Psi.

That was on the stock HG. But I'm gonna go with a better one just incase. How much should it cost to have the HG replaced?

[VitaminT]

HG costs about $175-200 +install. Someone else would have to answer about the install cost. Probably a pretty good bit.

[240SXer]

I was mainly curious about the labor.. What else should I change with the HG? Head studs? Washers? I don't know what stuff around there needs to be changed....

[VitaminT]

I am planning on using the ARP studs. Sorry can't answer that one. I just figured if I had it all apart why not. Especially if you need new OEM bolts the price difference is not that big.

[f150intally]

I am planning on using the ARP studs. Sorry can't answer that one. I just figured if I had it all apart why not. Especially if you need new OEM bolts the price difference is not that big.

i agree with VitaminT. do it all at once. that is my plan. head studs are $120. labor will probably be around $250. Just get the quote from a shop and let them source it all.

[240SXer]

There is a good shop around here that I want to do it but they seem to mainly do V8 stuff, is it similar enough? Plus they won't have a book or anything for the SR. So do you think the HG/Cam/Valvesprings is pretty basic or is the sr anything special?

[Dori Dori]

Well, if thy are comfortable w/ OHC motors, then there is nothing special. Just give them the torque specs since they'll have no clue what those are.