2nd Generation Specific 1986-1992 Discussion

New Street P Engine Carb And M Tranny

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Old 02-25-2003, 01:00 PM
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Sup ppl...Juss finish throwing a street ported engine, Dellorto Carburetor, Manual Tranny, and MSD amplified ignition. I did everything at one shot ( I know a lil risky) but thank God it worked! My baby runs like a dream whippin all that test For everything I spent 300 I love gettin deals. Everything runs smooth idles at 1500 wich is great being the engine is street ported. All the work was done by me and my pops Im 17 hes teaching me alot. The car came with headers and full exgaust purrin like a kitten, shes fast, very fast but ofcourse we will allways crave more speed. I drive my car regularly so I dont wanna go crazy like bridgeportin or nething, I was juss wonderin what can I do for a lil more speed without stressin my engine on the streets?? Any info would help being Im learning everything new.Thanx alot fellas...sIcE NyC
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Old 02-25-2003, 01:42 PM
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a street ported motor should hold a fine idle well below 1500rpm....
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Old 02-25-2003, 02:06 PM
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Does this mean theres something wrong in my car is 1500rpm idle ok?
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Old 02-25-2003, 02:08 PM
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who built the engine ?
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Old 02-25-2003, 02:41 PM
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Originally Posted by shiggyshaggy' date='Feb 25 2003, 08:06 PM
Does this mean theres something wrong in my car is 1500rpm idle ok?
there are a number of things that control your idle, I'm just saying technically it should be able to idle lower than that just fine, being an 80's fuel injected vehicle there are alot of variables at play here... you could have a vacuum leak and/or things out of adjustment. Check out the shop manual for TPS, idle, idle a/f mixture adjustments, and check if you have any vacuum leaks. If it's a series 5 it won't have idle a/f mixture adjustment but the rest still hold true... you didnt mention what year your car was from what I saw.
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Old 02-25-2003, 03:23 PM
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Well you should be able to adjust the idle speed on the Carb. I am not familiar with Dellorto's but most just have an idle speed screw. You should be able to get a nice 900 rpm idle. That is where mine is at and it is about right. I had it set at around 700-750 at first, but after I put on the exhaust it would want to die at stop lights if you didn't down shift coming up to a stop.
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Old 02-25-2003, 04:24 PM
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it's carbed? oh **** i can't read
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Old 02-25-2003, 04:41 PM
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I was going to say. You and Vosko both cant read.



As long as its tuned right, even a carbed street port should idle below 1k/rpm.







As for more speed it sounds like you've got just about everything an NA could want for speed. Just keep her tuned and running well.



Oh, and post pics
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Old 02-25-2003, 07:11 PM
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Originally Posted by isamu' date='Feb 25 2003, 01:23 PM
Well you should be able to adjust the idle speed on the Carb. I am not familiar with Dellorto's but most just have an idle speed screw. You should be able to get a nice 900 rpm idle. That is where mine is at and it is about right. I had it set at around 700-750 at first, but after I put on the exhaust it would want to die at stop lights if you didn't down shift coming up to a stop.
Street ported engines usually idle around 1100-1300rpm.You might want to lower it to 1100.Glad to hear it rips.If you still have any cats in the system pull those out if you want more power.
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Old 02-25-2003, 07:32 PM
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there is an idle adjustment screw on the throttle linkage on the carb arm
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