L-98 mods step by step
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Joined: May 2001
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From: Trollhattan,Sweden
L-98 mods step by step
I want some more HP, so I thought I´ll start this winter with some more serious upgrades. I´m on a budget, so I have to do it in steps.
I´ve got a rough idea about where I want to end up, I hope you will help me with some additional info, and give me some advice on this project. The car is a daily driver during the summer (I get to use the car six months if I´m lucky), and the winter is garage time. This is what I was thinking:
First winter: Long tube headers, cam change (LPE 219, since everybody seems to love it), head porting (the stock heads, I´ll try to do it myself).
ported intake, runners and plenum.
Second winter: AFR 190 heads, roller rockers
Third winter: Super Ram, and base intake
Fouth winter: 383 stroking
Could it be done like this, and in that order, and still have fun with each upgrade (driveability and performance)?
I´ll appriciate all opinions, thank you! :cheers:
I´ve got a rough idea about where I want to end up, I hope you will help me with some additional info, and give me some advice on this project. The car is a daily driver during the summer (I get to use the car six months if I´m lucky), and the winter is garage time. This is what I was thinking:
First winter: Long tube headers, cam change (LPE 219, since everybody seems to love it), head porting (the stock heads, I´ll try to do it myself).
ported intake, runners and plenum.
Second winter: AFR 190 heads, roller rockers
Third winter: Super Ram, and base intake
Fouth winter: 383 stroking
Could it be done like this, and in that order, and still have fun with each upgrade (driveability and performance)?
I´ll appriciate all opinions, thank you! :cheers:
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Joined: Sep 2001
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: L-98 mods step by step (tapper)
Yeah you can do it in that order.
Budget in all the valvetrain parts for the heads along with the portwork.
You should get new injectors, or at least have yours serviced/cleaned.
You would be better off if you could wait to do the SR at the same time as the 219, saving the AFRs for later to feed the 383.
Realize though, if youre going to put the cam in this winter, and with the stock intake or even the SR, youll run too rich or too lean without a custom chip. You probably wouldnt enjoy driving her as much if you smell fuel all the time.
Budget in all the valvetrain parts for the heads along with the portwork.
You should get new injectors, or at least have yours serviced/cleaned.
You would be better off if you could wait to do the SR at the same time as the 219, saving the AFRs for later to feed the 383.
Realize though, if youre going to put the cam in this winter, and with the stock intake or even the SR, youll run too rich or too lean without a custom chip. You probably wouldnt enjoy driving her as much if you smell fuel all the time.
Drifting
Joined: Jul 2001
Posts: 1,751
Likes: 1
From: Miami, FL, USA
Re: L-98 mods step by step (86Moon)
I would also wait and do the 219\SR together. Do headers and catback this winter, save up to do the SR with the 219 together. You can do the heads at any point along the way, even on the 350 and geat good gains.
If had to do it over again (which I do anyways!) I would get another block and build it in the garage over time, stroked, forged, cam, heads, the works. THen when I was done with the financing and work, I would slap it in. Maybe start over again with the 350 I pulled out or sell it.
If had to do it over again (which I do anyways!) I would get another block and build it in the garage over time, stroked, forged, cam, heads, the works. THen when I was done with the financing and work, I would slap it in. Maybe start over again with the 350 I pulled out or sell it.
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Joined: May 2001
Posts: 82
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From: Trollhattan,Sweden
Re: L-98 mods step by step (GusBustamanteJr)
The cat is removed, and from there to the tips it´s virtually straight pipes.
Headers is the first step, and if I don´t have to do anything else with the exhaust, it leaves me with perhaps some money left. Where would you put it?
Btw, I´m considering TPIS headers.
Thanks again!
Headers is the first step, and if I don´t have to do anything else with the exhaust, it leaves me with perhaps some money left. Where would you put it?
Btw, I´m considering TPIS headers.
Thanks again!
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From: Trollhattan,Sweden
Re: L-98 mods step by step (vader86)
Heads and stroking at the same time, that´s too much for me. What´s the priority? And what do you think are the HP gains for each step?
Thanks again!
Thanks again!
Team Owner
Joined: Sep 2001
Posts: 62,179
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Re: L-98 mods step by step (tapper)
The stock heads can feed the 383, and the AFRs arent too much for a 350, provided the SR is on already.
You can do that in either order you want. I would probably do the heads first and then save up for the 383.
Scorp has something like 380-390hp with the SR/219 on the 88-91 heads, although his have been worked over.
Not enough people test after each mod for me to give you a concrete gain for each, but Id figure 40hp from goin to 383 at least.
You can do that in either order you want. I would probably do the heads first and then save up for the 383.
Scorp has something like 380-390hp with the SR/219 on the 88-91 heads, although his have been worked over.
Not enough people test after each mod for me to give you a concrete gain for each, but Id figure 40hp from goin to 383 at least.
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Team Owner
Joined: Mar 2000
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From: Boston, MA
Re: L-98 mods step by step (vader86)
I have 388hp & 445 ft/lb with the SR, 219 and full exhaust, but my heads aren't "stock" D-ports. They are ported & polished, 2.02" manley pro-flo intake valves, 1.60" exhaust valves, 1.6:1 roller rockers, titanium retainers, double springs, 10* locks