C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!!

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Old Jan 10, 2003 | 07:40 PM
  #1  
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Default DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!!

Hey Guys.... Sorry its not my car, nor is it a Corvette... but its still a LT1 Camaro. This guy got 26hp to the wheels with the 1.6 roller rocker mod. I think thats pretty darn good

Check it out, Try not to read down to see what other people posts, their stupidity is abundant :lol:

http://web.camaross.com/forums/showt...threadid=67423


[Modified by StealDads67, 1:46 AM 1/11/2003]
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Old Jan 10, 2003 | 08:10 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (StealDads67)

I think lost some intelligence reading that forum...I must never go there again!!!
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Old Jan 10, 2003 | 08:14 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (StealDads67)

Check it out, Try not to read down to see what other people posts, there stupidity is abundant :lol:
You got my interest so I read down and found this comment:

"i could be wrong but ive hear aligning them is a bitch"

:lol:
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Old Jan 10, 2003 | 08:17 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (Zix)

I think lost some intelligence reading that forum...I must never go there again!!!
Oh my Gawd........ they're Brane Sturgeons on that forum :lol:
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Old Jan 10, 2003 | 08:57 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (Caboboy)

I wish I had listened to your advice but my curiosity got the better of me and I had to read down now my head hurts I can't belive people can be that dumb :crazy:
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Old Jan 10, 2003 | 09:14 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (StealDads67)

Forget about it!!!!!!!!!!!!!!!!!!!! :eek:
:eek:
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Old Jan 10, 2003 | 09:15 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (StealDads67)

Hey, not to knock your post about the dyno results after the 1.6rrs, but if those guys are that 'challenged', you think they could have messed up reading the dyno result? :lol:
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Old Jan 10, 2003 | 09:42 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (VetteNoob)

Momma always said 1.6s are better than 1.5s. :rolleyes:
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Old Jan 10, 2003 | 10:08 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (castivers)

KEV- ya liked that huh?

yea guys
there were some really stupid things said on there. I remember when kevs dad was doing my rockers... I was thinking as soon as i saw that "i dont remember it being that hard, then again - he makes everything look easy :skep:"

yeah, there are some misinformed guys (ie 14&13 sec blown 383s?), but we have some VERY VERY smart guys on there like Injuneer, RKrause and Mr.Horsepower. Brilliant guys to say the least.

and i've seen some stupid poopie here too- Kev and I have had a good laugh on more than one occassion :lolg:


[Modified by TreyZ28, 10:09 PM 1/10/2003]
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Old Jan 10, 2003 | 10:09 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (castivers)

:lol: Curiousity got the best of me too...those guys are funny/uninformed! :rofl:
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Old Jan 11, 2003 | 03:08 AM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (Vette9d1)

Well, I decided to read all the replies before going to the thread, and I'm glad I did....with the day I've had, I think I would've jumped out my window....wait...I live on the first floor...that's something *those* guy would've done!
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Old Jan 11, 2003 | 03:11 AM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (StealDads67)

Oh, and deciding not to read the thread, I don't know the answer to this question...did the guy do the before and after dyno testing on the same dyno? Because if he did, then either other things were done/fixed, or the dyno guy tweaked the calibration. There is no WAY he gained 26 rwhp by increasing valve lift by ~0.030". Won't happen (at least not on a street LT1).
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Old Jan 11, 2003 | 10:52 AM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (CorvetteZ51Racer)

I agree with Z51 racer, I have a hard time believing they picked 26rwhp from 1.6's
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Old Jan 11, 2003 | 11:30 AM
  #14  
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (tpi 421 vette)

what we have to remember, even with the rampent stupidity on that forum, is that the GM factory rockers are junk.

they vary from 1.4:1 all the way up to 1.55:1... and it's a crap shoot as to what your engine gets on any given day. There is also the reality of the flex.

so... if this poor guy had 16 of the worst rockers on earth, I can believe he picked up 26hp. Also, if he had worn out springs... lighter retainers... it all does add up.

I know its a stretch... but not outside the relm...
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Old Jan 11, 2003 | 12:23 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (bogus)

Just to add to the Drain sergion Comment Over, last weekend I pulled the engine in my 94. I had help from a friend and one of his co-workers who happends to be a (dare I say it) a Ford engineer. He is very knowlageable On computer tuning LT1's. (he has a hot camed 95 camaro that runs 11.90's) We were discussing web info for LT1's and he said that "the maturity and quality of info have gone way down in the LT1 sections of the camaro boards." He also said that the guys that really knew there stuff have gone onto LS1's





[Modified by ASRoff, 11:24 AM 1/11/2003]
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Old Jan 11, 2003 | 12:31 PM
  #16  
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (CorvetteZ51Racer)

There is no WAY he gained 26 rwhp by increasing valve lift by ~0.030". Won't happen (at least not on a street LT1).
:iagree:
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Old Jan 11, 2003 | 01:13 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (fullboogie)

when i added march pulleys and 1.6 rrs with new lt1 valve springs and a crane hi-6 ignition on a stock LT1, i gained 29 rwhp. Assuming i gained 10 from the pulley, that means 19 for the 1.6s. ABsolutely incresed the top end of the LT1, pulled much harder to redline with them. :grouphug:
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Old Jan 11, 2003 | 04:26 PM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (StealDads67)

Yeah, probably the difference in "Camaro" intelligence and "Corvette" intelligence. Great minds think alike and so do weak ones.
I was told I couldn't use 1.6 rockers on my engine because of the .500 lift cam. At least the gain would be negligible. So I guess the cam has a lot to do with the end result of the new ratio rockers.

FWIW,

BIG JIM


[Modified by BIG JIM 54, 9:30 PM 1/11/2003]
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Old Jan 14, 2003 | 02:48 AM
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (BIG JIM 54)

Were you told this due to a piston to valve clearance?
Yeah, probably the difference in "Camaro" intelligence and "Corvette" intelligence. Great minds think alike and so do weak ones.
I was told I couldn't use 1.6 rockers on my engine because of the .500 lift cam. At least the gain would be negligible. So I guess the cam has a lot to do with the end result of the new ratio rockers.

FWIW,

BIG JIM


[Modified by BIG JIM 54, 9:30 PM 1/11/2003]
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Old Jan 14, 2003 | 06:01 AM
  #20  
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Default Re: DYNO TEST INSIDE<--- 1.6 Roller Rockers!!!!! (StealDads67)

There is No Way he picked up 26rwhp with 1.6 rockers. :nonod: :skep: :nonod:
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