JrRifleCoach

Yeah that sounds real good until your the one getting stuck with the fine and other forms of punishment unfitting the "crime"
I've manned up and been financially "punished" for three years afterwards!
Never again. I'll fight the charges for a traffic violation.

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Cams!!

ch@0s

Going over 90 is a criminal offence in your state?

C4in mesa

Maximum speed limit out in the desert is 75mph. Arizona Revised Statute exceeding 85mph is criminal speed. Maximum fine $500 + 85% court fees. 30 days imprisonment max.

C4in mesa

The last Corvette club meeting there were 2 guys from Payson in attendance. They both drove C6's modified. 700HP the other over 500HP. They made it to the meeting in 39 minutes. that's just over 80miles away. I warned them to be careful as I had just gotten my criminal speeding ticket that Wed. They sorta Just brushed my bad luck off and outta mind. I guess till you get caught its not reality.

ghoastrider1

fight the ticket..hopefully they will offer a reduced ticket charge.

vader86

Not going to continue hijacking the original poster's thread.

An 89 with 43K needs to be driven. If you just bought this car, drive it a year before doing serious modifications.

I would not recommend an engine swap to LT/LS series engines. The Gen 1 SBC is fine. You'll have to spend money either way and it really depends on what you want from the car. If you're never going over 70mph yourself then I think you should just do the basic mods and maybe some intake/exhaust work and be done.

vl5150

Getting back to the OP, 1.6 roller rockers and TPIS full length headers really woke up the car. A quality tune is essential as well so invest in the Moates autotune. If I'm rolling and gun it in 1st gear the tires now leave ghost stripes all through 1st and into 2nd. It will now rev up to 5500 RPM and beyond (I caught myself shifting at 6250 once). I don't have emissions check in FL so what I did may not be possible in your area. IMO,the stock exhaust manifolds and cats are boat anchors holding back a good SBC base engine from making power. I still have the stock intake and it's running well with it and I'm leaving that alone for now until I get some track runs under my belt.

My brother has a late model 5.0 Mustang and my Dad has a LS3 Camaro and they are in utter disbelief what the under-appreciated L98 is capable of with a few bolt ons and a tune.

C4in mesa

When I was having my engine rebuilt I researched what to do for the most part here on Corvette Forum. You are saying by simply going to 1.6 roller rockers and long tube headers with free flow exhaust your TPI motor now revs past 6000 rpm ? Stock cam stock intake ? I thought since everything I have read and been told was in order to increase a TPI motor's ability to go past 4500rpm was to change the cam and heads. Changing the air intake compliments theses changes and gets the max out of them. I feel like I wasted $2,000 if this is true ! I wish I had talked to you when I was dumping that cash into my rebuild. I stayed with the stock number 1.5 when I bought roller rocker arms. I thought my Comp Cam and heads were limiting my RPM range to 5500. You can go over 6000 !! I guess my other failure was I stayed with a cam that required no tune. My engine runs very well and felt no need to have a chip burned since my gas and air mix is just fine. Another big mistake it seems by me why I can't reach over 6000rpm in a TPI motor. But you have a stock cam ?

cv67

You can rev a TPI til it pops and it still isnt making power over 4xxx rpm just noise and creating heat. When theres that big a restiction the bottom end meaning pins and rod bolts really feel it. Its like putting your finger over a straw and a vacuum on the other end.

ch@0s

That is what I was thinking when I saw his post .. get another intake if you want to see more usable RPM.

vl5150

The engine will now spin to that RPM where it wouldn't do that before. But at the same time, just because it can get up there, doesn't mean that it's making power becauase of the TPI limitations. I shift around 5000-5500 now and I'm pretty happy with the power delivery for regular driving.

When I get bored of this power level, I'll do the cam/heads/intake all together, but it may be a while.

Bluewasp

link doesn't work. Has the information been moved to another ?

Incorvettei

This thread is from 2013. Ten years ago

Bluewasp

Yes i'm aware. What does that matter? Maybe the info was posted elsewhere.