Frank, nice numbers. Definitely impressive for a stock motor. If the truck makes it down the track through all three gears at that power level is a different story, but I've got my fingers crossed for you .

Looking at your power curve, hp starts dropping off almost immediately, which is the opposite of what you want. That's usually an indication of a restriction in the air system. If you are running the 3" downpipe, I doubt that's your problem, as I made 750rwhp with a 3" downpipe. I'd think you want to look at your induction system and make sure it can flow the air. It also just might be the stock heads and cams, I don't think anyone has ever made that kind of power with stockers, so that could be it too. Either way, very impressive.

 

By all means...get it on video at LF!!

 

[QUOTE=LightningTuner]Frank, nice numbers. Definitely impressive for a stock motor. If the truck makes it down the track through all three gears at that power level is a different story, but I've got my fingers crossed for you .
QUOTE]
It's made a few 1000ft and 1320ft passes at its current power level

Alsp Sal, you need to make a Memphis trip and do some tunning

 

Awesome Frank. Look forward to seeing you at L fest. Turbo power will be in the house!!

 

Good chance we'll set something up in St Louis next spring like we did this year, maybe take a drive up?

-Mark

 

Sal, the HP is flat from the peak almost all the way to the rev limiter. Its the torque thats falling off.

4" inlet shouldnt have any problem with a BA2800 MAF.

I think the cams are 'ok'. The stock heads are definitely an area of a bottleneck though.

I'm getting all my stuff gathered for the new motor already.

Video here

 

Well, you call it flat, I call it dropping off (because it's going down), but either way it's showing there is an air flow restriction holding your power back. Your HP line should be going up, at least till past 5k. Of course you are running a combo that's pretty uncommon (big power maker on a stock motor), so naturally there are areas that need to be improved.

BTW, I wasn't ******* you at all if you took it that way, just making an observation.

 

No Definitely not. I like constructive criticism. Yes it definitely does "lose a little" from the peak. My filter probably is the restriction. Its so freakin dirty.

 

Something I've always thought about, and the Cobra guys have worked with a little was the distance of the intercooler to the lower manifold "floor". It sits pretty close and could be a restriction. With a blower I don't see how you could raise it up and, but with Frank's custom intake seems like it would be easy to make a spacer to raise the intercooler core off the floor of the intake manifold some.

Just a thought.

 

Reichard makes one for the Cobras. If enough people asked Jim I'm sure he would be happy to do the same for the Lightning.

 

But, like I said; there just isn't room to raise the blower up any more. But for Frank who no longer has a blower it is possible.

 

Frank
I know your truck is kickin *** but....you still need springs.

I have been talking to Charles from MP and he has been hard at work on this problem and doing some testing on his own truck. So far the things he has found has been amazing. I don't want to give it all away because its his information but I will tell you he bumped his seat pressure up 15 lbs from his already aftermarket springs and found significant power gains...(30hp over 4700 rpm if I remember right) and like I said this is on a motor that already had name brand aftermarket springs on it.

When the boost goes up you need to control the valves, if they float, the hydraulic adjusters will take up the slack and hold the valves open, its typical of any hydraulic valve train.

I'm pretty sure Charles is not finished yet and has some more test to run, I think soon he will have some solid facts and figures that will be very interesting for any lightning owner.
Dale

PS....Frank...did I say your truck kicks ***

 

Casey
There is plenty of room to cut the floor out of the stock manifold and "lower" it. One could fashion a sheet metal floor...it would have to be made heavy cause that is a lot of surface area there or you could use the stock floor that you just cut and put a 3/4" spacer in it. OR....you could do what I did and make a new intercooler core from a Spearco core that is shorter but wider and longer. It gives a bigger window for the airflow and doesn't sit as close to the bottom of the manifold.
Dale

 

I'm interested in seeing that. I have a spearco cooler. What I'd like is something like a sullivan intake for a 2v motor.

I think it would be ALOT easier just to make about a 1 or 2" spacer to go between the intercooler plate and the intake.

I'm on it.

I dont really wanna change anything yet. I've never had the Valve covers off (cam covers whatever) and dont want to yet

 

Dale its not gonna hold anything compared to yours.

WHAT ELSE DO I NEED TO DO TO GET YOU MOTIVATED?!?!?