Maxing out a bolt-on only car (stock heads, stock cam, NA)
01-25-2011, 04:17 PM
#61
whats up cuz i wonder how many cheaters are actually on that list. Its pretty cool to think you are following all the rules and running mph with the fastest on the list. After your mod list you are gona be installing soon i think your best option is going to be weight it might not be hp at the motor but power to weight ratio is what matters. Its funny to see people sugest rockers,smaller gaskets,port matching,balancing rotating assembly and so on its good ideas but its not allowed! Its not as easy as it looks i tried for two years and got advise from you and every si guy and i gave up i couldnt get it to go any faster. i sometime wish i didnt give up so soon. I ran a 1.59 60ft 7.62 1/8 and 12.007 at 113.89mph + 2000d/a 3250 raceweight and my shift points all screwed up 110,000 mile motor getting valve float above 6000rpm
I'm not a good enough tuner to nail it from half way across the country 
Gotta remember you still were faster than 95% of stock internal guys stuck in the mid 12's...As far as my car, weight wise, I pretty much have it covered. Your gonna have to come take a look under my hood sometime
Theres TONS of more weight to take out of it, but it gets expensive fast! I'm just doing little things here and there on a constant basis, and it all adds up! Working on a project now that should drop 25+ off the nose of the car 
01-25-2011, 07:31 PM
#64
I've been following your build thread in the racing forum for sometime now as i plan on slowly doing a SI build of my own.
I saw the numbers you put down on your dyno run the other day. Very impressive. Now i seem to recall you have a few more goodies to install, namely a fast 102 intake and ebay tb combo. Do you expect to gain much from this? I realize you have to get a proper tune yet, but of course i assume that will come after the other things are installed.
Considering you have stock heads/cam does the 102 seem overkill? Are the ports at the head on the assorted fast intakes all the same size? And it is just the tb opening that is larger? Larger plenum volume on the larger sized intakes? Reason i ask all this is im wondering about port velocity in realtion to the stock intake port size of the heads.
Maybe im way off base with all this and the head ports are much larger, or perhaps exactly the same as the ports on the fast intakes.
Obviously you are trying to squeeze every last bit out of your combo. But if i can get away with just using a ls6 intake, but losing out on 5-10 hp, and saving some cash that would be good to know.
Another thing i just thought of... Is porting of the intakes aloud?
Sorry i feel as though i have rambled a bit... And maybe i should have done a search first, cause all this has been answered somewhere already.
I saw the numbers you put down on your dyno run the other day. Very impressive. Now i seem to recall you have a few more goodies to install, namely a fast 102 intake and ebay tb combo. Do you expect to gain much from this? I realize you have to get a proper tune yet, but of course i assume that will come after the other things are installed.
Considering you have stock heads/cam does the 102 seem overkill? Are the ports at the head on the assorted fast intakes all the same size? And it is just the tb opening that is larger? Larger plenum volume on the larger sized intakes? Reason i ask all this is im wondering about port velocity in realtion to the stock intake port size of the heads.
Maybe im way off base with all this and the head ports are much larger, or perhaps exactly the same as the ports on the fast intakes.
Obviously you are trying to squeeze every last bit out of your combo. But if i can get away with just using a ls6 intake, but losing out on 5-10 hp, and saving some cash that would be good to know.
Another thing i just thought of... Is porting of the intakes aloud?
Sorry i feel as though i have rambled a bit... And maybe i should have done a search first, cause all this has been answered somewhere already.
01-25-2011, 07:39 PM
#65
I've been following your build thread in the racing forum for sometime now as i plan on slowly doing a SI build of my own.
I saw the numbers you put down on your dyno run the other day. Very impressive. Now i seem to recall you have a few more goodies to install, namely a fast 102 intake and ebay tb combo. Do you expect to gain much from this? I realize you have to get a proper tune yet, but of course i assume that will come after the other things are installed.
Considering you have stock heads/cam does the 102 seem overkill? Are the ports at the head on the assorted fast intakes all the same size? And it is just the tb opening that is larger? Larger plenum volume on the larger sized intakes? Reason i ask all this is im wondering about port velocity in realtion to the stock intake port size of the heads.
Maybe im way off base with all this and the head ports are much larger, or perhaps exactly the same as the ports on the fast intakes.
Obviously you are trying to squeeze every last bit out of your combo. But if i can get away with just using a ls6 intake, but losing out on 5-10 hp, and saving some cash that would be good to know.
Another thing i just thought of... Is porting of the intakes aloud?
Sorry i feel as though i have rambled a bit... And maybe i should have done a search first, cause all this has been answered somewhere already.
I saw the numbers you put down on your dyno run the other day. Very impressive. Now i seem to recall you have a few more goodies to install, namely a fast 102 intake and ebay tb combo. Do you expect to gain much from this? I realize you have to get a proper tune yet, but of course i assume that will come after the other things are installed.
Considering you have stock heads/cam does the 102 seem overkill? Are the ports at the head on the assorted fast intakes all the same size? And it is just the tb opening that is larger? Larger plenum volume on the larger sized intakes? Reason i ask all this is im wondering about port velocity in realtion to the stock intake port size of the heads.
Maybe im way off base with all this and the head ports are much larger, or perhaps exactly the same as the ports on the fast intakes.
Obviously you are trying to squeeze every last bit out of your combo. But if i can get away with just using a ls6 intake, but losing out on 5-10 hp, and saving some cash that would be good to know.
Another thing i just thought of... Is porting of the intakes aloud?
Sorry i feel as though i have rambled a bit... And maybe i should have done a search first, cause all this has been answered somewhere already.
As far as porting intakes, any kind of intake is aloud. The only real guideline to the whole stock-internals list is that it has to be a 4th gen f-body, and has to have factory stock internals. The valve covers have never been off my car. One car wasn't allowed on the list because he switched to 241 heads on a 98 car, which meant he had opened his up.
As these motors get older I'm sure more fixing of old components will be allowed, such as old springs and such, but the rules are very tight in regards to opening up your motor.
01-25-2011, 07:51 PM
#67
I'm pretty sure I've stated it, and maybe even in this thread, but I'm hoping with all my new additions I can pick up in the neighborhood of 20hp. Which may or may not be over zealous...
01-25-2011, 07:57 PM
#68
Why do you say that? If anything I would assume I would pick up HP in the upper RPM's
I'm pretty sure I've stated it, and maybe even in this thread, but I'm hoping with all my new additions I can pick up in the neighborhood of 20hp. Which may or may not be over zealous...
I'm pretty sure I've stated it, and maybe even in this thread, but I'm hoping with all my new additions I can pick up in the neighborhood of 20hp. Which may or may not be over zealous...
It seems as most people pick up more Rwtq over the 90/92 version but about the same, or less, Rwhp.
Just my prediction, I could be completely wrong or completely right!
01-25-2011, 08:01 PM
#69
Ah come on, give up some of your secrets. Is it possible you would lose some power under the curve at all? Sure 10 hp peak is nice, but would it be at any sort of cost in the lower rpms?
Any thoughts on the intake port in relation to head port questions i had?
As far as porting intakes, any kind of intake is aloud. The only real guideline to the whole stock-internals list is that it has to be a 4th gen f-body, and has to have factory stock internals. The valve covers have never been off my car. One car wasn't allowed on the list because he switched to 241 heads on a 98 car, which meant he had opened his up.
As these motors get older I'm sure more fixing of old components will be allowed, such as old springs and such, but the rules are very tight in regards to opening up your motor.
As these motors get older I'm sure more fixing of old components will be allowed, such as old springs and such, but the rules are very tight in regards to opening up your motor.
01-25-2011, 08:02 PM
#70
When I spoke to Tony Mamo, he seemed to indicate that a 102mm when fully ported, out performs a fully ported 90/92 setup across the board, but that a ported 90/92 setup could very well out perform a stock 102..
FYI I would love to have Tony port mine, and he is more than worth the price, but I just don't have the coin for it right now.
01-25-2011, 08:14 PM
#72
Ah come on, give up some of your secrets. Is it possible you would lose some power under the curve at all? Sure 10 hp peak is nice, but would it be at any sort of cost in the lower rpms?
Any thoughts on the intake port in relation to head port questions i had?
Any word on freshening up the valve springs? Stock of course.
Any thoughts on the intake port in relation to head port questions i had?
Any word on freshening up the valve springs? Stock of course.
Valvesprings, in my opinion, as long as they are truly LS1 springs and not Ls6 springs, shouldn't be a problem.
I've considered freshening my springs and pushrods with new factory pieces. Peace of mind really...
01-25-2011, 09:12 PM
#74
The next dyno is going to be after all my next round of mods so we won't know what the intake itself gives just a total. Unless you guys want to sponsor some dyno time and I'll do it after each mod. Like I said, I take donations. Papypal is jwilliamson22@gmail.com hahaha
01-25-2011, 09:47 PM
#75
Ah come on, give up some of your secrets. Is it possible you would lose some power under the curve at all? Sure 10 hp peak is nice, but would it be at any sort of cost in the lower rpms?
Any thoughts on the intake port in relation to head port questions i had?
Any word on freshening up the valve springs? Stock of course.
Any thoughts on the intake port in relation to head port questions i had?
Any word on freshening up the valve springs? Stock of course.
Gotcha.. Your saying over another 90/90 set-up stock vs. stock. I think that on my set-up though, going from an Ls6 to the 102 should gain in the RPMs, if in fact it gains.
When I spoke to Tony Mamo, he seemed to indicate that a 102mm when fully ported, out performs a fully ported 90/92 setup across the board, but that a ported 90/92 setup could very well out perform a stock 102..
FYI I would love to have Tony port mine, and he is more than worth the price, but I just don't have the coin for it right now.
When I spoke to Tony Mamo, he seemed to indicate that a 102mm when fully ported, out performs a fully ported 90/92 setup across the board, but that a ported 90/92 setup could very well out perform a stock 102..
FYI I would love to have Tony port mine, and he is more than worth the price, but I just don't have the coin for it right now.
What was the price of him porting the intake? (PM)
01-26-2011, 02:15 AM
#76
11 Second Club
iTrader: (14)
Join Date: Mar 2008
Location: Houston
Posts: 1,434
Likes: 0
Received 0 Likes
on
0 Posts
I just can't see another 20hp, I was thinking maybe another 5-10 at most. But, every little bit counts! When do you expect to have numbers from the new stuff?
01-26-2011, 09:31 AM
#77
I'm hoping to get everything on in the next couple weeks at most, then nail the tune, and hit a dyno day later February at the same place I went Monday.
01-26-2011, 11:28 AM
#78
12 Second Club
iTrader: (18)
Join Date: Apr 2006
Location: Sarasota & Lee County
Posts: 627
Likes: 0
Received 0 Likes
on
0 Posts
Isn't that the fun of it though? People never expected a H/C/I Ls1 to hit over 500.... then it did. Then people said far and few inbetween but everytime new parts come out, the bar gets raised. Only one way to find out for sure
The thing most people forget is how well the stock heads and cam work together. Yes the 98 cams are slightly bigger.... doesn't mean better. The event timing on the 01/02 cams are more effecient, coupled along with smoother casting heads make a world of difference when a max-effort SI is of concern. Alot of people overlook or simply just forget that there is ALOT of very minor things you can do to a SI car that will make gains. Once you start putting all the very very minor things together, the results pretty much speak for themselves.
Also, just to note.... The rules of SI seem to be whatever the mods opinions are. Pretty sure that number 1 spot had a motor that was once completely apart and swapped. Maybe I am wrong though
The thing most people forget is how well the stock heads and cam work together. Yes the 98 cams are slightly bigger.... doesn't mean better. The event timing on the 01/02 cams are more effecient, coupled along with smoother casting heads make a world of difference when a max-effort SI is of concern. Alot of people overlook or simply just forget that there is ALOT of very minor things you can do to a SI car that will make gains. Once you start putting all the very very minor things together, the results pretty much speak for themselves.
Also, just to note.... The rules of SI seem to be whatever the mods opinions are. Pretty sure that number 1 spot had a motor that was once completely apart and swapped. Maybe I am wrong though
01-26-2011, 11:40 AM
#79
Isn't that the fun of it though? People never expected a H/C/I Ls1 to hit over 500.... then it did. Then people said far and few inbetween but everytime new parts come out, the bar gets raised. Only one way to find out for sure
The thing most people forget is how well the stock heads and cam work together. Yes the 98 cams are slightly bigger.... doesn't mean better. The event timing on the 01/02 cams are more effecient, coupled along with smoother casting heads make a world of difference when a max-effort SI is of concern. Alot of people overlook or simply just forget that there is ALOT of very minor things you can do to a SI car that will make gains. Once you start putting all the very very minor things together, the results pretty much speak for themselves.
Also, just to note.... The rules of SI seem to be whatever the mods opinions are. Pretty sure that number 1 spot had a motor that was once completely apart and swapped. Maybe I am wrong though
The thing most people forget is how well the stock heads and cam work together. Yes the 98 cams are slightly bigger.... doesn't mean better. The event timing on the 01/02 cams are more effecient, coupled along with smoother casting heads make a world of difference when a max-effort SI is of concern. Alot of people overlook or simply just forget that there is ALOT of very minor things you can do to a SI car that will make gains. Once you start putting all the very very minor things together, the results pretty much speak for themselves.
Also, just to note.... The rules of SI seem to be whatever the mods opinions are. Pretty sure that number 1 spot had a motor that was once completely apart and swapped. Maybe I am wrong though
The #1 guy from what I have heard/ seen was once a race car, but blew his motor up. He then decided to throw a stock LS1 in it and see what it would do, and low and behold ran the 10.6. From what I gathered he didn't push it that much and didn't try that long
