what happen here ?

J

jimsplace

Active member
Brazos River Rat ( Billy ) said:
Jim - I know the compression and RPM had nothing to do with the retainer breaking and going through the engine . We know for sure that the retainer did not match the springs now .. We pulled 5 springs off and now we can for sure say it was not matched correctly .. The retainers would not seat inside the smallest  spring .. I am sure this caused coil bind and just extra pressure on the retainers ..

All of this for a 300 dollar set of freaking Titanium Retainers ..

I am tired of paying 8.00 a gallon for fuel for a lake boat deal .. The guy that is helping me believe we will make 800HP  on 93 octane . We were looking at 900+ HP with the 13.4:1 engine on race gas with the new heads , but I can live with 800HP on a pump gas.

I am shipping 4 spring and retainers up to the Machine shop so they can see what we are talking about .. I am sure like most speed shop . We will not get anything from them .. I would be happy with a new set of piston that cost me 900.00.. or a new roller cam , hell anything they would  help pay for I would be happy with , but I am not expecting anything .. 

My boat racing may have to wait one more year now ..
Click to expand...

I totally understand not wanting to pay $8.00 a gallon for race gas.
I was always that way, I never had a motor that was set up that needed that kind of fuel.
My motors were always a compromise of performance and lake use.  For years I ran AV gas
that provided more than I could get from pump gas safely, but still provided performance
at a reasonable price.  I don't recall ever using more than 10 gallons in any one day

Based on that, since AV gas usually runs about $1.25 a gallon higher than premium unleaded.  It might cost
me an extra $12.00 a day for the gas.  That's the worst case.
Race gas on the other hand costs about $4.00 a gallon more, or $40.00 per day.

It's only money, but like most things, there is a limited supply.
It's just something to think about.

Good luck with whatever you do.  I just want to see you running that boat.
  :smile17:
 
73 Sanger Flat

73 Sanger Flat

Active member
A few years back , when I took Galen his first fast ride in the boat . It was a 516 C.I  -- 10.5:1 pump gas engine ,, We ran 104-106 that day in the boat .. That is more like what I want .. I could pull up and fill it up with 93 octane and go to the lake and have fun ..
That is what I am shooting for again .. No AV gas , No Race fuel , No E-85 . No Alky ..
I am tired of all that stuff
Racing may have to wait to 2015 to make an official race now .. I did get my new helmet drilled and the helmet restraint attached yesterday . Got my radio receiver also ..
 
M

Michael Swindoll

New member
Billy hate to here this!! I just tore one up myself! On a side note maybe to cheer you up with what heads you are running now (new) and a new set of 10.1 JE pistons and a 750 lift cam, plus the rest of your parts block, crank, rods, intake etc! Don't remember your cubic in. I think 555+?? Anyhow should make 800-850 on 93 I've built a few with a close set up! But I would bet 850 or real close on 93! Those where some of my best weekends when I wasn't running race gas and could pull up fill up at the SS and go haul a$$ and have a blast!  Best of look to ya! I've been going threw a bad slump my self with my big boat with all the issues I've been having but I keep telling my self thing will get better! So keep your head up bud!! It'll get better!!
 
73 Sanger Flat

73 Sanger Flat

Active member
Engine is a 598 .  4.60 bore x 4.50 stroke .. I found some JE pistons # 257963 with 118 cc heads comes out to 10.3 compression
My heads are 119 cc , so not sure what that will make it .. Maybe 10.2:1

Thinking of running my old Isky cam # 396732  lift is 730/727 with 1.7 rockers .. 772  with 1.8 rockers  on the intake .

Randy thinks it will make 800 HP pretty easy with my single carb set up .. With a tunnel ram it would make more , but I don't have one . So it will be with the new #632 Edlebrock intake and my carb  and the new Brodix 3xxx heads

Same to you . Good luck and hope you get yours running like you want it to ..

It sucks when they don't go the way we want them to .. Hurting engines SUCKS . Repairing is even worse
 
J

jimsplace

Active member
Brazos River Rat ( Billy ) said:
A few years back , when I took Galen his first fast ride in the boat . It was a 516 C.I  -- 10.5:1 pump gas engine ,, We ran 104-106 that day in the boat .. That is more like what I want .. I could pull up and fill it up with 93 octane and go to the lake and have fun ..
That is what I am shooting for again .. No AV gas , No Race fuel , No E-85 . No Alky ..
I am tired of all that stuff
Racing may have to wait to 2015 to make an official race now .. I did get my new helmet drilled and the helmet restraint attached yesterday . Got my radio receiver also ..
Click to expand...

From what I remember, it ran pretty darn good too.
It'll still run better than a jet with a similar motor by quit a bit.
That's all that really matters.

Seriously, some of those pump gas motors are making pretty good horsepower.
The other thing is that if or when you decide to add a blower, it'll be ready for that too.
  :smile17:
 
R

running late

New member
Billy.

One idea I would pass along. Suggest that you deal with someone who knows how to build a good pump gas engine.  There is more to it than just dropping compression.  A good machine shop should be able to do the machine work you need done but it is the right combination of parts that will allow it to live.  Don't know didly about your old cam, but the correct cam is one of the things that you really need to make this thing work.

Later  J

Done right you should be able to make a little more power than what you had!
 
C

Carnivalride

New member
Brazos River Rat ( Billy ) said:
Engine is a 598 .  4.60 bore x 4.50 stroke .. I found some JE pistons # 257963 with 118 cc heads comes out to 10.3 compression
My heads are 119 cc , so not sure what that will make it .. Maybe 10.2:1

Thinking of running my old Isky cam # 396732  lift is 730/727 with 1.7 rockers .. 772  with 1.8 rockers  on the intake .

Randy thinks it will make 800 HP pretty easy with my single carb set up .. With a tunnel ram it would make more , but I don't have one . So it will be with the new #632 Edlebrock intake and my carb  and the new Brodix 3xxx heads

Same to you . Good luck and hope you get yours running like you want it to ..

It sucks when they don't go the way we want them to .. Hurting engines SUCKS . Repairing is even worse
Click to expand...

Are the heads 119cc combustion chambers or larger because they're cnc'd? Mine were 121 and I milled them down to 114cc.

Those pistons are flat tops how about some small domes?
 
73 Sanger Flat

73 Sanger Flat

Active member
J  -- Randy is helping me with this .. We are almost matching what he has in his boat .. He has a 598 making 800 on pump gas .. If the cam is limiting us , then I will have to get a new cams also .. I will not let that be a deciding factor on this .. Just trying to save 350.00---------
Loren - according to the paper work with the heads, they are 119 cc . Randy will check this before they go on .. Did not really wanted to mill them down unless we needed to .. That was all I could find on JE, SRP  and Diamond Piston websites . I called JE and talked to a rep and that is all they offer .. He did tell me for 200 more , they would custom make a set for me , whatever I wanted ..  I wish I had the money Loren . I might take you up on that deal .. ---
Jim-- Yeah it ran very good that weekend with the old 516 pump gas engine in it ..---
Henry - That ideal was brought up , build it and then put a blower on it in a few years .. But that is another 6000-8000 for that set up ..
 
73 Sanger Flat

73 Sanger Flat

Active member
Carnivalride said:
Brazos River Rat ( Billy ) said:
Engine is a 598 .  4.60 bore x 4.50 stroke .. I found some JE pistons # 257963 with 118 cc heads comes out to 10.3 compression
My heads are 119 cc , so not sure what that will make it .. Maybe 10.2:1

Thinking of running my old Isky cam # 396732  lift is 730/727 with 1.7 rockers .. 772  with 1.8 rockers  on the intake .

Randy thinks it will make 800 HP pretty easy with my single carb set up .. With a tunnel ram it would make more , but I don't have one . So it will be with the new #632 Edlebrock intake and my carb  and the new Brodix 3xxx heads

Same to you . Good luck and hope you get yours running like you want it to ..

It sucks when they don't go the way we want them to .. Hurting engines SUCKS . Repairing is even worse
Click to expand...

Are the heads 119cc combustion chambers or larger because they're cnc'd? Mine were 121 and I milled them down to 114cc.

Those pistons are flat tops how about some small domes?
Click to expand...
Loren - I could not find any that would fit with the 6.7 rods . 1.245 pin height and a 4.60 bore .. Who else makes Piston that might have that size ?
 
C

Carnivalride

New member
Billy after I posted that I did some quick searching and I didn't see any small dome 10cc ish type shelf pistons for your rod and stroke combo.

By my calculations I see 10.22 with that flat top and a 119 chamber and 10.58 if you mill the head to 114cc which would be about a .030" cut.

I figure a 7-8cc dome for 11:1 with a 119 chamber.

I was razzing you about my engine (not saying I wouldn't sell for the right price) but you have a better block and more cubes! If it were me I'd think yours through and try it again.


Loren
 
73 Sanger Flat

73 Sanger Flat

Active member
Do you think the 10.22 compression would be enough to do what I want ?
I could have the heads milled down , but how much power would that increase from 10.22 to 10.58 ?? Would it be worth cutting that much off the heads .. I like to have plenty of room in case something happens and I have to have them milled later ..
Never know , the pistons that are in it may be able to reuse .. Then we are looking at over 900 HP on VP 110 ... But that is 8.00 a gallon again ..  What should I do .. ?????????.
 
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