Fairmont 2.0 (forged lq4, s480, 800whp, under new management)
01-17-2013, 12:00 PM
#1761
TECH Apprentice
So every turbo car in the world has a stock short block? 700rwhp in Denmah's case is not 850rwhp and that turbo is going to be pretty much done at 20psi where it made 700rwhp on his car. So if it's a restriction at 20psi, the turbo is done right around 20psi, how does he get to 850rwhp?
This has nothing to do with my cam, his cam or any other vendors cam. It is about returns on the dollar amount invested. That is all. I'm tired of arguing about this stuff.
This has nothing to do with my cam, his cam or any other vendors cam. It is about returns on the dollar amount invested. That is all. I'm tired of arguing about this stuff.
Plus,trying to get more massflow at a lower PR, can just put you right off the right side of the compressor map(overspeed).
01-17-2013, 12:15 PM
#1762
So every turbo car in the world has a stock short block? 700rwhp in Denmah's case is not 850rwhp and that turbo is going to be pretty much done at 20psi where it made 700rwhp on his car. So if it's a restriction at 20psi, the turbo is done right around 20psi, how does he get to 850rwhp?
This has nothing to do with my cam, his cam or any other vendors cam. It is about returns on the dollar amount invested. That is all. I'm tired of arguing about this stuff.
This has nothing to do with my cam, his cam or any other vendors cam. It is about returns on the dollar amount invested. That is all. I'm tired of arguing about this stuff.
He needs to buy a better turbo, I find it sad the 80mm magnum can't make more than a tc76. I think with a stock l33 cam and a better turbo he'd make a lot more power. With a precision unit(while yes costing more, but a lot of that offset could be saved other places) and a locked converter would be capable of well over 900rwhp vs the 700rwhp it is running out of steam on the 80mm as you mentioned above.
01-17-2013, 01:02 PM
#1764
TECH Apprentice
I am going to do something like that when we dyno the Camaro, it has an L33 stock cam in it,and we are going to do the dyno logging intake pressure,and exhaust backpressure. Then we are going to switch to 1.8 rockers,and run the same dyno, at basically the same time to see what the intake pressure does,and how the exhaust pressures are affected. And of coarse the power numbers.
Should be interesting to see if what we think should happen actually does,and how all the data looks.
If we gain a 25% increase(i doubt it will be that high) on the NA engine from the higher lift and the slight duration change because of the 1.8 rockers, that would only give us a 5hp per lb of boost increase for the 400 bucks the rockers would cost, not really worth it. because the 50 hp increase @10lbs could be seen with just 2 lbs more boost on the non-rocker setup.
But we will learn something,and at least if something happens to the short block, we don't have to worry about trashing that money, like we have done to cams before.
Should be interesting to see if what we think should happen actually does,and how all the data looks.
If we gain a 25% increase(i doubt it will be that high) on the NA engine from the higher lift and the slight duration change because of the 1.8 rockers, that would only give us a 5hp per lb of boost increase for the 400 bucks the rockers would cost, not really worth it. because the 50 hp increase @10lbs could be seen with just 2 lbs more boost on the non-rocker setup.
But we will learn something,and at least if something happens to the short block, we don't have to worry about trashing that money, like we have done to cams before.
01-17-2013, 02:36 PM
#1767
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01-17-2013, 03:26 PM
#1769
I figure it is time to introduce myself. My name is Mike, I bought Matt's Fairmont. While I probably will not be changing the formula of the Mont that much now that Matt has it dialed in to the point where it makes great power and should live, I will be racing it and I will be making plenty of videos of it. I do plan on making some minor changes to the car, since I am in my 40's and fear death. LOL.
The cage will go in, the Lincoln Locker may be replaced, some suspension mods and maybe some effort directed at putting it on a mild weight reduction plan. I plan on keeping this thread alive and bringing regular updates about the car. I live in Louisiana, so the car will be back at the track very soon as this is our season down here.
This is not my first Fairmont, but it is my first LS based car. I have read all of Matt's various threads on the car and I am slowly coming up to speed with the LS world. I am sure there is a learning curve.
I am going to have alot of fun with this car. Thinking of bringing it to Tx2k13 this year.
Mike
The cage will go in, the Lincoln Locker may be replaced, some suspension mods and maybe some effort directed at putting it on a mild weight reduction plan. I plan on keeping this thread alive and bringing regular updates about the car. I live in Louisiana, so the car will be back at the track very soon as this is our season down here.
This is not my first Fairmont, but it is my first LS based car. I have read all of Matt's various threads on the car and I am slowly coming up to speed with the LS world. I am sure there is a learning curve.
I am going to have alot of fun with this car. Thinking of bringing it to Tx2k13 this year.
Mike
01-17-2013, 03:30 PM
#1770
Do any of you guys have the actual L33 cam specs?
I'm thinking it might be:
PART NUMBER 12593207
5.3 L GEN-IV
114 LDA 116 INTAKE CENTERLINE
1.70 ROCKER RATIO
Lift:
@Cam @Valve
EXHAUST: 0.283 0.480
INTAKE: 0.283 0.480
Cam Timing@0.004-inch Tappet Lift:
Open Close Adv. Duration
EXHAUST: 57 BBDC 36 ATDC 273
INTAKE: 9 BTDC 87 ABDC 276
Cam Timing@0.050-inch Tappet Lift:
Open Close Duration
EXHAUST: 27 BBDC 14 BTDC 193
INTAKE: 19 ATDC 32 ABDC 193
I'm thinking it might be:
PART NUMBER 12593207
5.3 L GEN-IV
114 LDA 116 INTAKE CENTERLINE
1.70 ROCKER RATIO
Lift:
@Cam @Valve
EXHAUST: 0.283 0.480
INTAKE: 0.283 0.480
Cam Timing@0.004-inch Tappet Lift:
Open Close Adv. Duration
EXHAUST: 57 BBDC 36 ATDC 273
INTAKE: 9 BTDC 87 ABDC 276
Cam Timing@0.050-inch Tappet Lift:
Open Close Duration
EXHAUST: 27 BBDC 14 BTDC 193
INTAKE: 19 ATDC 32 ABDC 193
01-17-2013, 03:32 PM
#1771
I figure it is time to introduce myself. My name is Mike, I bought Matt's Fairmont. While I probably will not be changing the formula of the Mont that much now that Matt has it dialed in to the point where it makes great power and should live, I will be racing it and I will be making plenty of videos of it. I do plan on making some minor changes to the car, since I am in my 40's and fear death. LOL.
The cage will go in, the Lincoln Locker may be replaced, some suspension mods and maybe some effort directed at putting it on a mild weight reduction plan. I plan on keeping this thread alive and bringing regular updates about the car. I live in Louisiana, so the car will be back at the track very soon as this is our season down here.
This is not my first Fairmont, but it is my first LS based car. I have read all of Matt's various threads on the car and I am slowly coming up to speed with the LS world. I am sure there is a learning curve.
I am going to have alot of fun with this car. Thinking of bringing it to Tx2k13 this year.
Mike
The cage will go in, the Lincoln Locker may be replaced, some suspension mods and maybe some effort directed at putting it on a mild weight reduction plan. I plan on keeping this thread alive and bringing regular updates about the car. I live in Louisiana, so the car will be back at the track very soon as this is our season down here.
This is not my first Fairmont, but it is my first LS based car. I have read all of Matt's various threads on the car and I am slowly coming up to speed with the LS world. I am sure there is a learning curve.
I am going to have alot of fun with this car. Thinking of bringing it to Tx2k13 this year.
Mike
01-17-2013, 04:47 PM
#1778
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It's a bonestock ls6. exhaust Ar. is .82. it spools really quick even with a stock converter. it made 670hp 623 tq at 14 psi no meth.There turbonetics ball bearing turbos.
01-17-2013, 05:27 PM
#1779
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At any rate, I was looking around on eBay for some twins possibilities, and I guess what looked good to me were some "GT35"s that CXracing had on there. 61.3mm compressor inducer and 62mm turbine exducer, with a .68 T4 turbine housing for $289 shipped. I have no reason to think this is right other than the compressor is not larger than the turbine, and it seems to be in the right size range... Haha... Oh, and it has a reasonable sounding A/R.
58s might be cool as long as the turbine wheels are not too small.
**EDIT**
Tonight CXracing has those "GT35s" I mentioned above for $244 shipped OR BEST OFFER! Wow... That's cheaper than a GT45.
http://www.ebay.com/itm/CXRacing-T4-...6bb016&vxp=mtr
Last edited by Tjabo; 01-17-2013 at 05:56 PM.
01-17-2013, 05:35 PM
#1780
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I think a little bit of the Fairmont will always have a special place in many of our hearts. It fun a fun and exciting project to watch, cant wait to see what the Ranchero ends up with!