Tuning is there a big difference
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Junior Member
Joined: Jul 2016
Posts: 88
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Car: 90 iroc z
Engine: 358 tpi
Transmission: Auto
Tuning is there a big difference
I recently swapped motors in my 90 iroc.
I installed a 358 short block
And trick flow super 23 195 heads
Cam is a 230/234 110 lsa.
I got a safe start up chip from a good source. The cars runs idles no real issues. I was informed by the programmer that tuning is necessary and I am in the process of datalogging once my stuff arrives from moates. Here is my question
The car drives pretty dam good. Better than stock by far but I don't feel I am getting the power I should be out of it, once it is tuned using data logs will it really make a big difference in performance?
I installed a 358 short block
And trick flow super 23 195 heads
Cam is a 230/234 110 lsa.
I got a safe start up chip from a good source. The cars runs idles no real issues. I was informed by the programmer that tuning is necessary and I am in the process of datalogging once my stuff arrives from moates. Here is my question
The car drives pretty dam good. Better than stock by far but I don't feel I am getting the power I should be out of it, once it is tuned using data logs will it really make a big difference in performance?
Supreme Member
Joined: Jan 2003
Posts: 4,626
Likes: 313
Re: Tuning is there a big difference
it depends on how far off your current tune is. but yeah there is potential for a big difference.
but with a set up like that, you'll definitely want a WB O2 hooked up to Tunerpro so you can catalog and see what the engine is actually doing.
Tuning blind with out a a WB is a waste of time IMO.
my guess is a safe start up chip is going to be overly rich.
but with a set up like that, you'll definitely want a WB O2 hooked up to Tunerpro so you can catalog and see what the engine is actually doing.
Tuning blind with out a a WB is a waste of time IMO.
my guess is a safe start up chip is going to be overly rich.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: Tuning is there a big difference
It most certainly will as i doubt any start bin will be close enough as all engines vary some. Now how much to be gained depends how far off it is
i have had starting bins run idle ok and part throttle but be way off on wot. So it depends
i have had starting bins run idle ok and part throttle but be way off on wot. So it depends
Joined: Jun 2003
Posts: 5,028
Likes: 78
From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
Re: Tuning is there a big difference
Yes, it will make a difference. If you're using a shorter runner intake (because you're not running a 230/234 110 LCA cam on TPI, right?) a good starting point would be to find some spark maps from an LT4.
Joined: Dec 2004
Posts: 16,771
Likes: 1,001
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Tuning is there a big difference
it depends on how far off your current tune is. but yeah there is potential for a big difference.
but with a set up like that, you'll definitely want a WB O2 hooked up to Tunerpro so you can catalog and see what the engine is actually doing.
Tuning blind with out a a WB is a waste of time IMO.
my guess is a safe start up chip is going to be overly rich.
but with a set up like that, you'll definitely want a WB O2 hooked up to Tunerpro so you can catalog and see what the engine is actually doing.
Tuning blind with out a a WB is a waste of time IMO.
my guess is a safe start up chip is going to be overly rich.
Look into this
http://www.dynamicefi.com/EBL_P4_Flash.php
what tibo saidTrending Topics
Joined: Dec 2004
Posts: 16,771
Likes: 1,001
From: Mile High Country !!!
Car: 1967 Camaro, 91 z28
Engine: Lb9
Transmission: M20
Axle/Gears: J65 pbr on stock posi 10bolt
Re: Tuning is there a big difference
Your going to be better off tuning it yourself, tons of information on $8d mask in the stickies.
Buying a wb o2 and starting with super aujp is a great way to go if you don’t want to go with the ebl. Cost wise if you buy a emulator /burner it’s not that much more for a ebl. IMO money well spent to be able to do ve learns.
You can do ve tuning yourself with spreadsheets.
https://www.thirdgen.org/forums/diy-...uide-book.html
Last edited by Tuned Performance; Feb 18, 2019 at 06:02 PM.
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Thread Starter
Junior Member
Joined: Jul 2016
Posts: 88
Likes: 1
Car: 90 iroc z
Engine: 358 tpi
Transmission: Auto
Re: Tuning is there a big difference
Speaking of knock control as tibo posted. Make sure you are using a aujp or anjf memcal. Some people convert v6 memcals to work as a v8 with cylinder select jumper. This is fine but you loose knock retard control.
Your going to be better off tuning it yourself, tons of information on $8d mask in the stickies.
Buying a wb o2 and starting with super aujp is a great way to go if you don’t want to go with the ebl. Cost wise if you buy a emulator /burner it’s not that much more for a ebl. IMO money well spent to be able to do ve learns.
You can do ve tuning yourself with spreadsheets.
https://www.thirdgen.org/forums/diy-...uide-book.html
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