L98 vs LT1 - make them equal
Thread Starter
Burning Brakes
Joined: Feb 2001
Posts: 1,118
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From: West Palm Beach Florida
L98 vs LT1 - make them equal
Okay. I know that the L98 is more powerful down low and the LT1 is more powerful up high..
What would you do if you had an L98 to make it perform up high like an LT1?
What would you do if you had an LT1 to make it perform down low like an L98?
What would you do if you had an L98 to make it perform up high like an LT1?
What would you do if you had an LT1 to make it perform down low like an L98?
Thread Starter
Burning Brakes
Joined: Feb 2001
Posts: 1,118
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From: West Palm Beach Florida
Re: L98 vs LT1 - make them equal (Sal Collaziano)
This is a thread that I'm hoping will grow for people with each engine to get the best they can without replacing it. I think it would be nice for new forumers to know what they could do to make their engine perform where it naturally lacks as opposed to the other..
Okay?
Thanks in advance...
Okay?
Thanks in advance...
Team Owner
Joined: Mar 2000
Posts: 83,383
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From: Boston, MA
Re: L98 vs LT1 - make them equal (Thud)
The L98 needs the TPI replaced, and headers added. Then you'll get both. :) The L98's TPI intake was designed for a 305ci engine. :( The long runners that it has give it the torque.
Thread Starter
Burning Brakes
Joined: Feb 2001
Posts: 1,118
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From: West Palm Beach Florida
Re: L98 vs LT1 - make them equal (scorp508)
Thanks Scorp.. So there's one answer. To get high end torque in an L98, you need to replace the TPI replaced and add headers.
Now. What do you replace the TPI with? Is there a particular TPI setup designed for a 350ci engine?
Now don't laugh too hard. What are runners? hehe. Okay there. I laughed FOR you. Is that part of the TPI? hah...
Anyways. I'd like answers for the LT1 as well. What would give it more torque down low. This thread will hopefully be good for either an L98 owner or an LT1 owner to read if they're new and don't have this kind of knowledge on hand...
Thanks
Now. What do you replace the TPI with? Is there a particular TPI setup designed for a 350ci engine?
Now don't laugh too hard. What are runners? hehe. Okay there. I laughed FOR you. Is that part of the TPI? hah...
Anyways. I'd like answers for the LT1 as well. What would give it more torque down low. This thread will hopefully be good for either an L98 owner or an LT1 owner to read if they're new and don't have this kind of knowledge on hand...
Thanks
Team Owner
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
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Re: L98 vs LT1 - make them equal (Sal Collaziano)
well LT1 has enough torque down low, you just need to get to it. Add a high stall torque converter and 3.73 gears, and youll see.
Runners are the tubes going from the plenum to the intake manifold, they are very long, too long for high end hp, the engine cant get the air it needs fast enough. Also, porting these runners and the plenum would give you much more hp. There is no GM intake designed for the 350 like the LT1's. Maybe try a Superram or miniram depending on what you want to do with the car.
Runners are the tubes going from the plenum to the intake manifold, they are very long, too long for high end hp, the engine cant get the air it needs fast enough. Also, porting these runners and the plenum would give you much more hp. There is no GM intake designed for the 350 like the LT1's. Maybe try a Superram or miniram depending on what you want to do with the car.
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Team Owner
Joined: Mar 2000
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From: Boston, MA
Re: L98 vs LT1 - make them equal (Sal Collaziano)
Now. What do you replace the TPI with? Is there a particular TPI setup designed for a 350ci engine?
The SuperRam is generally accepted as the "low-highmid" power maker. It makes extreme amounts of torque, and also allows for higher HP levels all the way from idle to about 5500 RPM. The Miniram is generally accepted as the "midhigh-high" power maker. It makes slightly more torque, but much more HP all the way up to something nutty like 7000 RPM. It depends on what you want to build. If you want to rev the **** out of the engine, go with the MiniRam. I am installing a SuperRam setup on my car amongst other things.
Now don't laugh too hard. What are runners? hehe. Okay there. I laughed FOR you. Is that part of the TPI? hah...
Team Owner
Joined: Mar 2000
Posts: 83,383
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From: Boston, MA
well LT1 has enough torque down low, you just need to get to it. Add a high stall torque converter and 3.73 gears, and youll see.
Thread Starter
Burning Brakes
Joined: Feb 2001
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From: West Palm Beach Florida
Re: L98 vs LT1 - make them equal (scorp508)
For the L98, to me, it seems like the Miniram would be the way to go - because you'd want to add more power to the upper band. But, is it worth it to rev the engine that high for the power? If you can get more power down low, that might be safer for the engine in the long run.
Hmmm!!
Thanks for these replies.. Now if someone could just go into HOW you'd get the torque out of an LT1 down low... :p:
Of course, more thoughts and opinions are certainly welcome. Nothing better for advertiser pockets than a nice long thread with millions of pageviews. :)
Hmmm!!
Thanks for these replies.. Now if someone could just go into HOW you'd get the torque out of an LT1 down low... :p:
Of course, more thoughts and opinions are certainly welcome. Nothing better for advertiser pockets than a nice long thread with millions of pageviews. :)
Race Director
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Re: L98 vs LT1 - make them equal (Sal Collaziano)
To use the miniram properly,they recommend a 2800 stall speed torque converter in the automatic transmissions and 3.73 rear gears.
That will help spin the engine faster into its powerband so it doesnt feel torqueless down low.
Believe it or not, a LT1 has lots of torque,just doesnt feel as torquey as an strong running L98.My friends LT1 Camaro,automatic and 3.42 rear gears can smoke the hides off the tires on take off and press me back in the seat harder then my L98 could when it was bone stock.
It only takes a blink of an eye to start WOT to midrange so the power will come in fast.
I think the LT1's that dont feel as torquey are the ones that have highway gears such as 2.59 or 2.73's.
I saw Mr Mojo launch his car at the track at the cruise in and I thought he was about to do a small wheelie.If thats not torque,that HP sure looks good then!!
:)
That will help spin the engine faster into its powerband so it doesnt feel torqueless down low.
Believe it or not, a LT1 has lots of torque,just doesnt feel as torquey as an strong running L98.My friends LT1 Camaro,automatic and 3.42 rear gears can smoke the hides off the tires on take off and press me back in the seat harder then my L98 could when it was bone stock.
It only takes a blink of an eye to start WOT to midrange so the power will come in fast.
I think the LT1's that dont feel as torquey are the ones that have highway gears such as 2.59 or 2.73's.
I saw Mr Mojo launch his car at the track at the cruise in and I thought he was about to do a small wheelie.If thats not torque,that HP sure looks good then!!
:)
Safety Car
Joined: Jul 2001
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From: Pinellas Florida Misfit
Cruise-In III Veteran
Re: L98 vs LT1 - make them equal (Bill's86Coupe)
I think the LT1's that dont feel as torquey are the ones that have highway gears such as 2.59 or 2.73's.
My LT-1 with the 3.07 is great... has more low end feel then my 86 with 2.59's in it.
Safety Car
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From: Hillsboro OR
Re: L98 vs LT1 - make them equal (Sal Collaziano)
For the L98, to me, it seems like the Miniram would be the way to go - because you'd want to add more power to the upper band. But, is it worth it to rev the engine that high for the power? If you can get more power down low, that might be safer for the engine in the long run.
Le Mans Master
Joined: Jul 2001
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From: Santa Maria, CA
Re: L98 vs LT1 - make them equal (Sal Collaziano)
Ahhhh,..... the million dollar question.
I didn't find to many alternatives for the TPI when I was looking for something better. My guess is that the Lingenfelter SR was a happy medium but $$$$$$!
I didn't find to many alternatives for the TPI when I was looking for something better. My guess is that the Lingenfelter SR was a happy medium but $$$$$$!
Team Owner
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From: Athens AL
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Re: L98 vs LT1 - make them equal (89 Paul in cal)
well the miniram has some drivibility issues with some people. It usually doesnt like to be driven around town. The super is better for a daily driver IMHO.
Race Director
Joined: Mar 1999
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From: Bartlett Illinois
Re: L98 vs LT1 - make them equal (Sal Collaziano)
Best way to make the L98 close to the LT1:
-Free flowing exhaust
-Cam
-Heads
-Miniram
-If an auto.. a 2800 stall and at least 3.07 gears
-If a 6spd.. the stock gears should be fine..
I am quicker then my friends 94 LT1 convertible.. With baiscally the mods mentioned.. and his is currently stock except for 3.54 gears and B&B exhaust
-Free flowing exhaust
-Cam
-Heads
-Miniram
-If an auto.. a 2800 stall and at least 3.07 gears
-If a 6spd.. the stock gears should be fine..
I am quicker then my friends 94 LT1 convertible.. With baiscally the mods mentioned.. and his is currently stock except for 3.54 gears and B&B exhaust
Safety Car
Joined: Jul 2001
Posts: 4,178
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From: Windermere FL
Re: L98 vs LT1 - make them equal (Hammer)
Get a 6 speed. Then you don't go down low. The LT-1 has a longer range of good torque than the L98. If you put a stick in each the L98 is toast. In a battle of autos, the L98 has a chance because it starts with the torque low. I'll still easily take a stock L98 with either trans with the LT-1 stick. Gears and a torque converter will get you to the torque band on the LT-1 really fast and then it will pull. This is the cure for the LT-1 auto. I'm going with a 4.09 rear in mine soon.