Suggestions for injectors or TB size?
04-25-2011, 09:00 AM
#1
Staging Lane
Thread Starter
iTrader: (19)
Join Date: Oct 2008
Location: MI
Posts: 92
Likes: 0
Received 0 Likes
on
0 Posts
Suggestions for injectors or TB size? Well I found my way back into a LT1 car, Its been about 10 years since my last one. I had a lot of parts laying around so I was able to assemble a decent engine very reasonably. I was wondering if anyone would have any suggestions on fuel injectors, throttle body size & tuning. Car will be a cruiser, wanting something to drive take the t-tops off and enjoy. But of course still make some noise.
97 Trans am A4
350 LT1 (.040")
stock crank
stock rod
Probe forged pistons (flat top-4cc reliefs)
230°/230° @.050" / .480/.480 lift / 108LSA
stock LT1 heads
LT4 valve springs
Mezierre electric water pump
Long tubes
offroad y pipe into catback
*i'm currently keeping my eyes out for a lock up convertor around 2800-3200
-Any opinions on the throttle body? Is it worth it to spend the $300 on the 52, should I just add the air foil to the 48mm?
-Injector size? I was thinking that the stock injectors would be ok, or should I buy some 30# motorsports injectors? (its has been a long time since I dabbled with LTX stuff)
-I have read some good reviews about PCMforless looks like its about $250 for a mail order tune. I'm not shooting for the fences on this build just want something to play with.
Appreciate any input.
Thanks!
97 Trans am A4
350 LT1 (.040")
stock crank
stock rod
Probe forged pistons (flat top-4cc reliefs)
230°/230° @.050" / .480/.480 lift / 108LSA
stock LT1 heads
LT4 valve springs
Mezierre electric water pump
Long tubes
offroad y pipe into catback
*i'm currently keeping my eyes out for a lock up convertor around 2800-3200
-Any opinions on the throttle body? Is it worth it to spend the $300 on the 52, should I just add the air foil to the 48mm?
-Injector size? I was thinking that the stock injectors would be ok, or should I buy some 30# motorsports injectors? (its has been a long time since I dabbled with LTX stuff)
-I have read some good reviews about PCMforless looks like its about $250 for a mail order tune. I'm not shooting for the fences on this build just want something to play with.
Appreciate any input.
Thanks!
04-25-2011, 09:23 AM
#2
At this point, with stock heads and manifold ... I wouldn't bother with a larger TB.
The foil would be nice if you found it cheap. If you ever decide to get ported heads,
have the intake manifold done as well. You'll benefit from increased volume and they can
open the ports to accommodate a 58mm TB.
30 or 36# injectors would be a wise investment, just be sure to have the tune set up properly.
I like Racetronix (Lucas) injectors, but I've also had good luck with SVO.
Don't go crazy, but be sure to buy something that you can grow into if you plan any further modification.
Fastchip.com (Ed Wright) does excellent work on mail-order tunes, as does MadZ28.com (Ion).
The foil would be nice if you found it cheap. If you ever decide to get ported heads,
have the intake manifold done as well. You'll benefit from increased volume and they can
open the ports to accommodate a 58mm TB.
30 or 36# injectors would be a wise investment, just be sure to have the tune set up properly.
I like Racetronix (Lucas) injectors, but I've also had good luck with SVO.
Don't go crazy, but be sure to buy something that you can grow into if you plan any further modification.
Fastchip.com (Ed Wright) does excellent work on mail-order tunes, as does MadZ28.com (Ion).
04-25-2011, 10:28 AM
#4
TECH Fanatic
iTrader: (8)
Join Date: Jan 2011
Location: Pinellas Park Florida
Posts: 1,550
Likes: 0
Received 0 Likes
on
0 Posts
lt1pcmtuning.com is much cheaper than 250 and you can data log real time data so your car can be dialed in. But with what it sounds like you have a stock engine so it will be very easy tune. Your stock TB will be more than enough with a small cam like that.
