does anyone have specs on the length and valve seat preassures of the two generations of rocket springs?

any other aftermarket and or stock specs would be great as well.


i just recieved some supertech's from a local shop(part number) 1000D. putting them on with stock gsr cams. i believe the seat preassure is 102lbs. is there anyone who would advise for or against this ? i want to hear some input. i DO plan on upgrading to M22's.

thanks again to Earl for being sucha damn nice guy with all the supertech info i needed! he knows whats up!

 

102 lbs seems pretty soft to me.

 

Rocket Motorsports
Gen 1
Installed Seat pressure: 95lbs
@12.0mm: 265lbs

Gen 2
Installed Seat Pressure: 55lb
@12.0mm: 180lb


Toda
Installed Seat pressure: ~50ish ilb
@12.0mm: 188lb


Portflow
Installed Seat Pressure: 70lbs
@12.0mm: 195lb

 

Did forget to ask you what lif your pressure was measured at. I assumed it was .060 away from coil bind. Perhaps not.

 

What seat and nose pressure are you looking for?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DonF &raquo;</TD></TR><TR><TD CLASS="quote">What seat and nose pressure are you looking for?</TD></TR></TABLE>

something that i can use with stock or aftermarket cam that will also not prematurely wear my valvetrain.

on the package of valvesprings it says:

SPR-H1000D
dual spring diam.29.65/21.85/15.5mm
79lbs@35.5mm/ 102lbs@33.5mm
250lbs@21.5mm/ C.B.@ 20.70mm
chrome sillicon.

could someone please translate this for me? i assume the installed weight is the "79lbs@35.5mm"?
is it also tru i can take these measurements and figure out exactly how much lift i can use without binding? is there a formula for that?
please excuse my ignorance.

 

Take the installed height of your valve spring and subtract the amount of lift your cam has. Ideally you woudl want .060 clearence at max lift from coil bind. Seems like the Honda world gets away with running them as tight as .035. The main thing with aftermarket valve springs is at such an install height they also have to maintain enough seat pressure to keep the valve steady at high lift numbers.

 

Man the Rocket springs have such a big difference in spring rates. Its definately more of a street all motor spring vs like an all our race spring(turbo/all motor)

Are you sure thats the right spring rates? If it is, people are assuming wrong if they are putting these springs on their motors.
When people ask for Gen 1 vs Gen 2 springs, I'm sure they are just thinking that its a more improved valvespring package. But what they are getting is a totally different spring for a different application.

Please confirm those rates cuz, if people are misinformed, then Rocket is not doing the job of educating the buyers properly on what springs to use. Or at least relabel the packages so that it is not confusing

 

Those are the rates supplied by Rocket, how is he supposed to a better job? Ask the rates and that is what you recieve.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 909ER &raquo;</TD></TR><TR><TD CLASS="quote">Man the Rocket springs have such a big difference in spring rates. Its definately more of a street all motor spring vs like an all our race spring(turbo/all motor)

Are you sure thats the right spring rates? If it is, people are assuming wrong if they are putting these springs on their motors.
When people ask for Gen 1 vs Gen 2 springs, I'm sure they are just thinking that its a more improved valvespring package. But what they are getting is a totally different spring for a different application.

Please confirm those rates cuz, if people are misinformed, then Rocket is not doing the job of educating the buyers properly on what springs to use. Or at least relabel the packages so that it is not confusing</TD></TR></TABLE>

Those are the correct spring rates, i dont see what is so confusing. Then again you may be the kind of person that buys by looking at the "stage" of a product rather than looking at the specs first. It seems that rockets springs are used by people that know how to build motors and can understand simple specs

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 909ER &raquo;</TD></TR><TR><TD CLASS="quote">Man the Rocket springs have such a big difference in spring rates. Its definately more of a street all motor spring vs like an all our race spring(turbo/all motor)

Are you sure thats the right spring rates? If it is, people are assuming wrong if they are putting these springs on their motors.
When people ask for Gen 1 vs Gen 2 springs, I'm sure they are just thinking that its a more improved valvespring package. But what they are getting is a totally different spring for a different application.

Please confirm those rates cuz, if people are misinformed, then Rocket is not doing the job of educating the buyers properly on what springs to use. Or at least relabel the packages so that it is not confusing</TD></TR></TABLE>

i understood the differences between gen 1 and gen 2 before i posted this i just wanted to see numbers. i had never felt missinformed and was fully aware that the gen 1 had a heavier seat preassure i just didnt know by how much. i had orignially planned to get the gen2's but it was too long of a wait. and now here i am stuck with supertech's meant for high stress applications, which is not what i need. so its mor of the " hurry up and wait" game. i learned my lesson, and should have just went through earl.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PURPLETERROR aka BIGMATT &raquo;</TD></TR><TR><TD CLASS="quote">

Those are the correct spring rates, i dont see what is so confusing. Then again you may be the kind of person that buys by looking at the "stage" of a product rather than looking at the specs first. It seems that rockets springs are used by people that know how to build motors and can understand simple specs </TD></TR></TABLE>

OH I was just amazed how the spring rate differences are. Believe me, I am totally not the type that just look at "stage" names. Thats why I was so surprised of the difference.
Just imagine the average guy buying Rocket parts. I see posts about the stuff talking about, oh I'd rather get the Gen 2 since they are better than Gen 1. Whats that say to more informed builders like you and me. It shows the ignorance of that person in assuming that just because it has a "Generation" name, means its better since its newer. Thats jus not right.
Maybe its their fault for not reading or researching more, but when I hear of Gen 1 vs Gen 2, it sounds like that Gen 2 is a similar part as Gen 1, but just just made better.

What it should say is:
Gen1: Turbo and High lift All Motor applications.
Gen2: Street All Motor Applicaitons.

Thats why its so much better to get Supertech valvetrain since there are 5 different choices on spring rates and you have to pick yourself what the best one is for you. It makes the buyer know what their buying since they have to choose and read what they are getting.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 909ER &raquo;</TD></TR><TR><TD CLASS="quote">

Thats why its so much better to get Supertech valvetrain since there are 5 different choices on spring rates and you have to pick yourself what the best one is for you. It makes the buyer know what their buying since they have to choose and read what they are getting.</TD></TR></TABLE>

but the buyer has to know that there are choices. i didn't until it was too late. now im stuck here waiting for the correct set to come in because my shop said "the ones we got will work for you". once again contributing to my lack of trust from any local shop. yes i should have done more research and yes they got me my stuff extremely fast like i asked but i made sure to make a point that ill be using stock cams for a MILD na setup and i didnt want anything extreme. what did i get? a model similar to the rocket gen 1's.

 

Does anyone have stock valvespring seat pressure to compare to the aftermarket ones listed above? Would it be safe to say that even with lower seat pressure than the Gen1's the Gen2's will be ok with higher lift cams to rpm's as high as 9000?

Thanks in advance.

Dan

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Toadfart &raquo;</TD></TR><TR><TD CLASS="quote">Does anyone have stock valvespring seat pressure to compare to the aftermarket ones listed above? Would it be safe to say that even with lower seat pressure than the Gen1's the Gen2's will be ok with higher lift cams to rpm's as high as 9000?

Thanks in advance.

Dan</TD></TR></TABLE>


i recall someone saying they are safe up to 9500 and have even seen some 10000.