Not Happy!!
Melting Slicks
Joined: May 2007
Posts: 2,382
Likes: 2
From: Kathleen FL
So are you using your stock cam? Intake swap, that's it? Though you have the Miniram on an otherwise stock L98, it will run very similar ETs as a stock LT1. If you launch it better, you should easily be in the mid 13s with that mph. But its always good to have 30 hp extra as seen in your trap speed. Also, with a Miniram your shift points have to be higher than 4800 like the stock TPI likes. Most Miniram combos I know like to be shifted up at about 5500-5800 rpms to get the best results.
Melting Slicks
Joined: May 2007
Posts: 2,382
Likes: 2
From: Kathleen FL
A nice basic cam for a Miniram would be the LT4 hot cam or TPIS ZZ9 cam. They seem to dyno about 300-340 to the wheels, depending on the weather and air temp. On my part, the LT4 hotcam required little to no tuning, just run base timing up about 10 degrees so it can idle better. A 2400 stall w/lock up should be great!
Race Director
Joined: Sep 2005
Posts: 10,878
Likes: 1
St. Jude Donor '07
You need to set the controls to maximize the performance of the mechanicals. The computer is programmed for a certain amount of intake vaccuum and backpressure. You removed some of both. You need to get the telemetry tuned in.
Pay a pro to reflash/road tune, or buy a chip from Hypertech or pcmforless.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by hooblyboobly
depending on the weather and air temp.
RACE ON!!!
Safety Car
Joined: Feb 2004
Posts: 3,786
Likes: 0
From: Minneapolis MN
Of all the thousands of Miniram setups TPiS has sold through the years this guy gets one that doesnt work. How is customer service supposed to deal with people like this. See his reaction when people here try to help figure it out.
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Thread Starter
Intermediate
Joined: Feb 2003
Posts: 45
Likes: 0
From: Roselle Park NJ
dude you got it allllll wrong...I'm taking everything in and trying to figure out what my options are. The fact that TPIS claims 75-95 hp on a STOCK L98, yet i still slow down is what got me angry. i appreciate all the knowledge and advice that everyone has thrown in and I've already made a few timing and fuel adjustments that's sped the car up a bit. So before you go bashing me about my "reaction" read the thread in detail.
Safety Car
Joined: Feb 2004
Posts: 3,786
Likes: 0
From: Minneapolis MN
dude you got it allllll wrong...I'm taking everything in and trying to figure out what my options are. The fact that TPIS claims 75-95 hp on a STOCK L98, yet i still slow down is what got me angry. i appreciate all the knowledge and advice that everyone has thrown in and I've already made a few timing and fuel adjustments that's sped the car up a bit. So before you go bashing me about my "reaction" read the thread in detail.
If a customer has something in mind and wants to run with it what is the builder supposed to do. Building a motor is like baking a cake from scratch Who's cake do you want to eat your grandmas or your little sister. I say **** on it and get a cake mix. I apologize
Pro
Joined: Apr 2005
Posts: 590
Likes: 0
From: Boynton Beach, FL
After reading this string of posts I had to jump in. 
You guys are all missing one of the key elements of building a performance engine. Everything has to match as a system. Changing individual parts that aren't matched to the rest of the engine will give you the results you got. Your headers and miniram are going to hurt your performance as long as you maintain the the factory cam and heads. A stock 203 degree intake duration cam is not matched to the high rpm capabilities of the miniram and headers. You've lost loads of torque. Its no wonder you ran slower. FWIW. 
Larry
You guys are all missing one of the key elements of building a performance engine. Everything has to match as a system. Changing individual parts that aren't matched to the rest of the engine will give you the results you got. Your headers and miniram are going to hurt your performance as long as you maintain the the factory cam and heads. A stock 203 degree intake duration cam is not matched to the high rpm capabilities of the miniram and headers. You've lost loads of torque. Its no wonder you ran slower. FWIW. Larry
Safety Car
Joined: Feb 2004
Posts: 3,786
Likes: 0
From: Minneapolis MN
After reading this string of posts I had to jump in. You guys are all missing one of the key elements of building a performance engine. Everything has to match as a system. Changing individual parts that aren't matched to the rest of the engine will give you the results you got. Your headers and miniram are going to hurt your performance as long as you maintain the the factory cam and heads. A stock 203 degree intake duration cam is not matched to the high rpm capabilities of the miniram and headers. You've lost loads of torque. Its no wonder you ran slower. FWIW.
Larry
You guys are all missing one of the key elements of building a performance engine. Everything has to match as a system. Changing individual parts that aren't matched to the rest of the engine will give you the results you got. Your headers and miniram are going to hurt your performance as long as you maintain the the factory cam and heads. A stock 203 degree intake duration cam is not matched to the high rpm capabilities of the miniram and headers. You've lost loads of torque. Its no wonder you ran slower. FWIW. Larry
Instructor
Joined: Mar 2006
Posts: 216
Likes: 0
From: Palo Alto California
I don't know why everyone keeps saying it went slower - you clearly had a bad 60' with a higher mph. You should be around 13.5-13.6 with the good launch, and the tune/shift points should get you into the low 13's. What was the problem again?
Race Director
Joined: Jun 2004
Posts: 13,961
Likes: 707
From: WI
Quitely the opposite, actually.
You need to set the controls to maximize the performance of the mechanicals. The computer is programmed for a certain amount of intake vaccuum and backpressure. You removed some of both. You need to get the telemetry tuned in.
Pay a pro to reflash/road tune, or buy a chip from Hypertech or pcmforless.
You need to set the controls to maximize the performance of the mechanicals. The computer is programmed for a certain amount of intake vaccuum and backpressure. You removed some of both. You need to get the telemetry tuned in.
Pay a pro to reflash/road tune, or buy a chip from Hypertech or pcmforless.
Never heard that before.
Team Owner
Joined: Sep 2001
Posts: 62,154
Likes: 1,731
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
You cant change the cam and everything else without having the setup retuned and expect it to be alot better. That cam and intake will want a whole different timing and fuel curve than the TPI system.
Theres no reason to be upset right now, this thing needs a chip done.
Theres no reason to be upset right now, this thing needs a chip done.
Instructor
Joined: Aug 2007
Posts: 175
Likes: 0
Quitely the opposite, actually.
You need to set the controls to maximize the performance of the mechanicals. The computer is programmed for a certain amount of intake vaccuum and backpressure. You removed some of both. You need to get the telemetry tuned in.
Pay a pro to reflash/road tune, or buy a chip from Hypertech or pcmforless.
You need to set the controls to maximize the performance of the mechanicals. The computer is programmed for a certain amount of intake vaccuum and backpressure. You removed some of both. You need to get the telemetry tuned in.
Pay a pro to reflash/road tune, or buy a chip from Hypertech or pcmforless.
Thread Starter
Intermediate
Joined: Feb 2003
Posts: 45
Likes: 0
From: Roselle Park NJ