Do I need to get a performance chip?
Thread Starter
Racer
Joined: Feb 2001
Posts: 276
Likes: 0
From: Springboro OH
Do I need to get a performance chip?
Do you think I can run the car (1988 L-98) with this setup and the stock chip? Im thinking that the car might have trouble at idle, but friends seem to have mixed reviews on if thats the case.
- CompCams XR269HR - 218/224 duration @50, 495/503 lift, 112 lobe separation.
- Heads, minor port work, new stock size valves, new springs
- 1.5 Roller rockers
- Accel TPI base
In the future I will add: New possibly larger injectors, better flowing runners and porting the plenum, possibly a larger throttle body also.
Joe :confused:
- CompCams XR269HR - 218/224 duration @50, 495/503 lift, 112 lobe separation.
- Heads, minor port work, new stock size valves, new springs
- 1.5 Roller rockers
- Accel TPI base
In the future I will add: New possibly larger injectors, better flowing runners and porting the plenum, possibly a larger throttle body also.
Joe :confused:
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Re: Do I need to get a performance chip? (joalyons)
If you're going to be opening up the engine to breathe more it's always a good policy to tune the computer. It will tricky too from what I hear because every car reacts different with various mods. Since you're going to be doing the things you mentioned first, you should look into burning your own prom, I think it will save you money down the road if you inevitable have to reprogram it again.
That's what I've learned recently. Look at the forums for ECM/PCM tuning and start learning from there. Don't even bother putting new injectors in if you're not going reprogram.
That's what I've learned recently. Look at the forums for ECM/PCM tuning and start learning from there. Don't even bother putting new injectors in if you're not going reprogram.
Safety Car
Joined: Mar 2000
Posts: 3,620
Likes: 2
From: Hillsboro OR
Re: Do I need to get a performance chip? (joalyons)
You'll need a chip to up the idle and add more spark advance for the camshaft. Take a look at GMs LT4 hot cam. It has very similar specs to the one you have listed and is cheaper. You really need to ditch the TPI to take advantage of either cam. Skip the larger TB. Change out the injectors if your stock ones need replacing.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Do I need to get a performance chip? (joalyons)
Even with the BM base you will be restricted by the stock runners (see Vic'89's recent post on this topic).
Since the '88 uses a MAF, initially use an AFPR to tune fuel flow through the stock injectors. Then use a scan tool to see if the Block Learn Mode cell (#1-#14) values are close enough to 128 (+/-6 is good).
You don't show any exhaust work so that may also be a limitation to air flow.
If you get some dyno pulls with a wide band O2 sensor you will know if you have enough fuel at WOT.
Since the '88 uses a MAF, initially use an AFPR to tune fuel flow through the stock injectors. Then use a scan tool to see if the Block Learn Mode cell (#1-#14) values are close enough to 128 (+/-6 is good).
You don't show any exhaust work so that may also be a limitation to air flow.
If you get some dyno pulls with a wide band O2 sensor you will know if you have enough fuel at WOT.
