Ok i just got a 93si with the h23 in it but ity has issues i got it dirt cheap so my problem is that when im in 4th or 5th gear my rpm's stay at around 53k to 6k what would cause that and it idles at around 4k i need help guys any info i could get would be greatly appreciated thanx
Rob

do what now?.... comeon bro. gives us more info. weird sounds? any codes? cel light? give us a better description as to what the car is doing. auto or manual?

It has to be manual if he's going into 5th gear.
We could better asses the problem if you could give us a little more information.

sorry about that' Ok here's what i have going on it's a 93 si with a h23 swap still running the f series trans' i have a check engine light but thats because the vss went out and the tps those are the codes its giving but none of those would contribute to such high rpm's im new to the h serties and such im a b series guy and the d series.
when im driving my rpm's are at 55 to 6k in 5th gear it still runns good has pick up when i get into it so im wondering if any one has had this issue or idea's to what it could be thanx all.

does it sound like the car is actually at that high of an rpm.... f series tranny around 5.5k-6k rpm in 5th gear would put u wayyyyy over 100mph.....

Where does the engine actually idle? you said it idle's around 4k, which i'm assuming you're reading off the cluster....

even with a huge intake vacuum leak (i.e.- idle screw at top of TB missing)...it shouldn't be over 2k. IF it is actually revving around 4k at idle....u NEED to address ur TPS issue. The VSS would through the mph off...possibly jumpy, or not working at all...ur high RPM could be a jacked up cluster, or a totally dead TPS...

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Thanx to everyone for your info i appreciate it