Won't rev past 4500?

[Chewy954]

Not sure why I cant rev past 4500 rpm's. There are no boost leaks at all. What do you guys recommend me doing next?

The car is untuned with 550cc injectors, think a tune or 450's will fix this?

 

[Chewy954]

should i get BPR6ES or BPR7ES?

 

[Phantom DSM]

BPR6ES would be good for you, unless you are planning high boost and lots of fuel with tuning. Generally 7's are used reaching 500whp and up. If im wrong, someone please correct me. Try searching more on this topic, i believe the higher the number the colder the spark.

 

[Chewy954]

correct. 7 is colder. For 550cc inj and big16g at 19 psi? 6 is good for that?

 

[Phantom DSM]

That should be sufficient with your current setup. Just maker sure they are gapped correctly. I hope that gets part of the problem solved, either way that is the type of plug you should be using. No platinum

 

[juanpac0]

I'm interested in hearing what the outcome of this was.

 

[shadow001dsm]

what about venting a bov if he has one? buddy has a 96 gst with a similair problem and it was cause he was venting the bov to the atmosphere.

 

[MY1GDSM]

Ya if the stock 2g BOV was on there. I could see that from it not holding the boost...

 

[Chewy954]

bov is recirculating.

I think it may be the spark plugs and wires actually..

He had NGK BKR6E in the car, what are the ones I need?

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That's for spark plug #1

 

[Chewy954]

I also see thay my MAF only has 1 screw holding it down, it is missing the other.. Where can I pick it up? Can that be a issue too or is it safe to ride w/o one?

 

[Chewy954]

I was told to check my ecu... does this look good? Not sure what to look for...

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Sorry for the cell phone pictures :/