C4 OBD1 Tuning

[space387]

Attachment 16727 In process of removing the intake manifold, blast and clear coat then reinstall w/new gaskets. This started as I have been chasing vacuum leaks. Also leaks at the valve covers too. All getting redone. checking valve lash while apart. EGR deleted. AIR pump re-circulation emissions system deleted. Cats deleted. Also upgrading to 30psi injectors which is what started this conversation. Hoping to get to it's peak performance as a raw stroked out naturally aspirated TPI system. At 9.5:1 pistons. Bbored .60 over. Mild cam. I'm hoping to get'er up to at least 450hp. We'll see.

I love the enthusiasm but to get 450RWHP you will need to spin the engine higher than a TPI will take you or go boost. I didnt see, are you planning on a different intake for the combo? I highly recommend not going with the LT1 intake like I did for real numbers as for the cost of what I did, a TPIS mini ram is the better option. I am excited to see how it turns out though.

[Cam George]

Thanks for great input. I'm going to just get it up to best performance as it is for now. It's a little red convertible. Just wanting to cruise with best power available. I like having a little forum post and will send pics of progress. Having fun really. Modest budget. I'm 'bout to make the sweet little L98 look and run good.