Aftermarket valve springs!!!

motoxxxman · May 8, 2008

so after lots and lots of researching, i've found a set of aftermarket valve springs that are a direct install in our engines, and even work with our stock retainers!!
and even better, they arent too stiff!!! they are stiffer than stock though, and have a great deal of travel for those aftermarket cam regrinds with decent lifts.

Supertech H1000d Valve Spring (part# SPR-H1000d on ebay)
29.65mm OD Outer Spring
21.85mm ID Outer Spring
20.50mm OD inner Spring
15.50mm ID Inner Spring
80 lbs seat pressure @ 35.50mm
239 lbs @ 12.5mm Lift
14.80mm max net lift
20.70mm coil bind
12.80 lbs/mm rate

Supertech performance valve springs are made with premium Superclean Chrome Silicon Vanadium Steel Alloy for higher performance and durability. Computer designed to ensure that wire stress levels do not overpass the limits for long durability under extreme conditions and harmonics are well under control.

pay close attention to the spring pressures. the above spring kit is meant for the h22, which has a shorter installed spring height than our 3g engines. which means the pressures will be a bit lower in our engines than what is described above. it also means the retainers will bottom out on the valve seal waaay before the springs themselves bind.
this spring kit is the only h22 kit where both the inner and outer springs fit our engines.
the above specs show 80lbs of spring pressure at 35.5mm of spring height, which is the approximate installed height in an h22. our engines run 36.75mm.
these are my calculated spring pressures for these springs when used in our engines with the stock b20/b21 retainers:
65 lbs seat pressure @ 36.75mm (this is the pressure when the valves are fully closed)
181 lbs @ peak lift with stock b20/b21 cams (0.356"-0.366" lift)
195 lbs @ peak lift with colt cams regrinds or web cams regrinds (0.410"-0.415" lift)

i haven't measured stock spring pressures for comparison, but you can definitely count on them being a good deal lower. my guess is around 30-35lbs seat pressure, and 130lbs or so at peak lift

and here's a link to a current auction on ebay selling this spring kit for $148 shipped!!

http://cgi.ebay.com/ebaymotors/SUPE...QcmdZViewItemQQcategoryZ33621QQihZ004QQitemZ140231791675QQrdZ1QQsspagenameZWD1V
~Cheers!!!~

Kobra85 · May 8, 2008

Nice Find, should be added to the performance page.

xX88LudeMikeXx · May 8, 2008

only for h22s?

Kobra85 · May 8, 2008

No, he found a set that will fit our b20 or b21. They are originally designed for the H22.

BlueB20 · Jan 28, 2010

ok

ok so lets say they fit in our ludes but now there is slack in the valve about 1mm cause u are suposed to be set at spring value of 35.5 mm cause any thing different and spring could mess up some how the only way to make those springs to work is to measure your valve stem and both springs and shave the difference that 1 mm will mess up everything

turbonetics1 · May 8, 2008

Moto, you are the fucking man! I just stated looking for some aftermarket replacements, very cool info.

VTEC Inside · May 8, 2008

Ain't that another good idea from Moto

:Rock:

fullnoise · May 8, 2008

I've allready bought them 2 mounths ago along with titanium retainers(RET_K20A2/T2) from Engine dynamics! still waiting to put those on!

knighty87 · May 8, 2008

awesome, ill have to check them out!!!

H22Lude702 · May 8, 2008

We're using Ferrea B18/B20 springs and Titanium retainers in our B20a5 motor. They fit perfect, no modifications needed; coil bind is at .610"

-Kyle

Ludercrs · May 8, 2008

I have a set of these springs for the B20 and I also have titanium valves, seals and retainers with that. 600$ o.b.o. if any of you guys want the set since i went the H22 way instead.

motoxxxman · May 8, 2008

the point of this thread was to share that i found that these valve spring kits work with the stock retainers.

to have a stiffer valvetrain for use with boost and/or cams, for ~$150 or so, is a heck of a good thing lol.

i'm also talking to KMS engine development to see if they can make valve spring kits for our motors to specs i've already given them, so we'll see what happens with that as well

johcamp · May 9, 2008

KMS is just a short drive from me. They are the guys that lightened my flywheel. Very knowledgeable and very helpful. If you get them to go through with it. Let me know. I have some stock springs i can donate to them for reference purposes and i have an engine i am building that could be a tester for these things.

turbonetics1 · May 8, 2008

I thank you moto, you just saved me a shit ton of cash, now I will have lot less fear of reving my engine to 8grand, FOR CHEAP!

motoxxxman · May 8, 2008

stronger valve springs are not the only thing you need to be able to rev a b20 higher than 7200

ludeman69 · May 9, 2008

i think he knew that, but his valve springs could have been the only thing holding him back from reving that high. u catch my drift?

turbonetics1 · May 9, 2008

I dont rev that high all the time, 7200-7500 is usally where I try to shift, but the cheap extra insurance is nice. What else do you recommend to rev to 8grand?

motoxxxman · May 9, 2008

a block deck extender very well attached to the block then sleeved cuz thats a must when using a block extender, and custom longer rods.

or an ls crank and custom rods

turbonetics1 · May 9, 2008

You mean to tell me I wont have to modify my vtec bearing at all?

motoxxxman · May 9, 2008

no, but you might have to re-positionally re-locate your crank position locator thruster rod shafts and pinions

turbonetics1 · May 9, 2008

Man, im excited! I just might be able to rev 8200 with that type of mod, why didint I think of that a long time ago? I learn somthing new every day.

tonybaker12 · May 9, 2008

I'm using a set of aftermarket JGE H22 inners and outers with my 'stock retainers' on my b21 head.

Moto... Why are you saying H22 inners and outers don't fit? If mine didn't fit..... why did they go in?

I need to know... before something bad happens.

motoxxxman · May 9, 2008

tonybaker12 said:
I'm using a set of aftermarket JGE H22 inners and outers with my 'stock retainers' on my b21 head.

Moto... Why are you saying H22 inners and outers don't fit? If mine didn't fit..... why did they go in?

I need to know... before something bad happens.

i checked out the jge h22 springs, and the outer springs are pretty close to the right size, just a hair big iirc. they'll go in, but they may shift around a bit. and the inner springs i think were a bit too small, which would mean they'd fit, but they'd stretch outwards a bit upon install for them to fit. i'll see if i can double check the measurements on them though and let you know for sure if i think its ok to keep em in there.

and i got to measuring the installed spring height today, i'll be adding that info to the first post. be sure to check it, cuz it is a bit different than what my guess was prior.

danktank · May 9, 2008

great find moto! thanks man.

motoxxxman · May 9, 2008

*pressure specs for use in our engines added to first post*

PreLudePilot-X · May 10, 2008

if you could get KMS to produce and sell titanium valve springs and retainers for reliable high end revving for about the same price as those you found on ebay I would pick them up later on down the line, probably(hopefully) before the end f the year,... if I can get get these damn cops to stop pulling me over and charging me with $500 fines.

EDIT!:

I just found these online listed for Honda Prelude 1990 as b-series ,.. well,.;

"Valve Springs - B series DOHC 4Cyl w/VTEC - Dual intake spring single exhaust spring - OD 1.171" ID .615" Intake Seat Load 60@1.375" Intake Open Load 220@.875" Exhaust Seat Load 43lbs@1.375" Exhaust Open Load 148lbs@.875"

especial attention to "w/VTEC",.. ???

motoxxxman · May 10, 2008

the ones im posting about are just the springs, to be used with our stock retainers.
h22 spring and retainer kits work fine, but are going to cost twice as much. just these specific ones work with our stock retainers. and for a daily driver that gets a lot of miles, im not a fan of titanium retainers; they wear.

and the listing you found is bogus. spring pressures are too high for the intake and too low for the exhaust, spring sizes are wrong, the fact that they only use an outer spring on the exhaust kinda scares me, the fact that they are rating the springs for use with a 0.500" lift cam really scares me cuz a cam that size would wreak absolute havok on our valvetrain, and the fact that they describe the engine totally incorrectly REALLY scares me.

tony, i still have to make a call or two to get the specs on your jge springs to see what i think on those

Red89LudeSi · May 10, 2008

interesting... Good find man

Im starting to gather stuffs for my build.

tonybaker12 · May 11, 2008

Thanks moto.... keep me informed. I would hate to think that these springs are gonna cause me any trouble.

Also..... i am not using the same camshafts as before. I'm now using a set of Delta 272's with Darkstar adjustable cam gears.

My car is at the dyno shop. It's been there for a month. They are trying to track down some electrical gremlins.

Good news... the car made 280whp on 12lbs of boost!!!! I can't wait for them to crank the boost up. The cams and springs seem to be working good so far.

Oh yeah... here's something interesting... the power did not drop off much at redline (7200) it was making 270whp when it hit the rev limiter. That's only a 10whp drop. Note, that was with the exhaust cam set at 0 degree and the intake at 4 degree.

When i was using the stock cams and cam gears at 12lbs of boost.... the peak power was 230whp and would drop to 180whp at redline.

motoxxxman · May 11, 2008

see, NOW we're talkin tony!! i've been waiting to see when you'd drop some cams and other parts into your mix to raise the power. anytime im telling people about the potential of the b20 when boosted, the first thing i always have mentioned is your setup and the fact that is practically totally stock, as far as parts that make a difference in power; stock cams (well, b18/b21 stock cam combo), stock tb, ported stock IM, stock valves...

damn i cant wait to get my build further into its stages.

i think its time i really start pressing this company i've been talking to to get an MLS head gasket made for us, cuz i know you'll be ready for it before me, and i know we arent the only two that will need it lol.

motoxxxman · May 11, 2008

oh, and you gotta post up the dyno graphs, as many of them as you can, at all the different boost levels you tune to in the process. PLEASE PLEASE PLEASE!!

Dexter · May 11, 2008

Good stuff. I can't wait to get building

CADster · May 11, 2008

great stuff moto..

+1

but have these numbers been verified or are they still calculated ?

hese are my calculated spring pressures for these springs when used in our engines with the stock b20/b21 retainers:
65 lbs seat pressure @ 36.75mm (this is the pressure when the valves are fully closed)
181 lbs @ peak lift with stock b20/b21 cams (0.356"-0.366" lift)
195 lbs @ peak lift with colt cams regrinds or web cams regrinds (0.410"-0.415" lift)

motoxxxman · May 12, 2008

CADster said:
great stuff moto..

+1

but have these numbers been verified or are they still calculated ?

hese are my calculated spring pressures for these springs when used in our engines with the stock b20/b21 retainers:
65 lbs seat pressure @ 36.75mm (this is the pressure when the valves are fully closed)
181 lbs @ peak lift with stock b20/b21 cams (0.356"-0.366" lift)
195 lbs @ peak lift with colt cams regrinds or web cams regrinds (0.410"-0.415" lift)

they are calculated according to the specs i was given by supertech and mathematically converted into what they would be in our engines according to the measurements i took of b20a5 components.
i havent measured actual pressures yet, as i dont have the springs in hand, and i havent made my measuring device yet

Aftermarket valve springs!!!

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